{"id":7857,"date":"2024-08-08T02:15:00","date_gmt":"2024-08-07T18:15:00","guid":{"rendered":"https:\/\/app11147.cloudwayssites.com\/?p=7857"},"modified":"2025-06-03T13:25:09","modified_gmt":"2025-06-03T05:25:09","slug":"grades","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/","title":{"rendered":"C\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 ch\u00ednh v\u00e0 bi\u1ec3u \u0111\u1ed3 ph\u00e2n lo\u1ea1i"},"content":{"rendered":"<p>Th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u01b0\u1ee3c chia th\u00e0nh n\u0103m nh\u00f3m ch\u00ednh: austenitic, ferritic, martensitic, duplex v\u00e0 k\u1ebft t\u1ee7a c\u1ee9ng. C\u00e1c nh\u00f3m n\u00e0y c\u00f3 c\u00e1c c\u1ea5p \u0111\u1ed9 kh\u00e1c nhau, nh\u01b0 lo\u1ea1t 300 v\u00e0 lo\u1ea1t 400. V\u00e0 304 v\u00e0 316 l\u00e0 c\u00e1c c\u1ea5p \u0111\u1ed9 ph\u1ed5 bi\u1ebfn nh\u1ea5t.&nbsp;<\/p><p>Ch\u00fang t\u00f4i s\u1ebd gi\u1edbi thi\u1ec7u cho b\u1ea1n c\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn c\u1ee7a t\u1eebng gia \u0111\u00ecnh v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh c\u0169ng nh\u01b0 \u1ee9ng d\u1ee5ng c\u1ee7a ch\u00fang. Ch\u00fang t\u00f4i c\u0169ng l\u1eadp bi\u1ec3u \u0111\u1ed3 so s\u00e1nh c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a ch\u00fang \u0111\u1ec3 gi\u00fap b\u1ea1n thu\u1eadn ti\u1ec7n l\u1ef1a ch\u1ecdn lo\u1ea1i ph\u00f9 h\u1ee3p.<\/p><p>Nh\u1ea5p v\u00e0o \u0111\u00e2y \u0111\u1ec3 \u0111i \u0111\u1ebfn <a href=\"#elementor-toc__heading-anchor-44\">Bi\u1ec3u \u0111\u1ed3 th\u00e9p kh\u00f4ng g\u1ec9<\/a>.<\/p><h2 class=\"wp-block-heading\">H\u1ec7 th\u1ed1ng ph\u00e2n lo\u1ea1i kh\u00e1c nhau c\u1ee7a c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9<\/h2><p>C\u00f3 nhi\u1ec1u h\u1ec7 th\u1ed1ng kh\u00e1c nhau trong c\u00e1c t\u1ed5 ch\u1ee9c kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 Vi\u1ec7n S\u1eaft v\u00e0 Th\u00e9p Hoa K\u1ef3 (AISI), Ti\u00eau chu\u1ea9n Trung Qu\u1ed1c (GB) v\u00e0 Ti\u00eau chu\u1ea9n Ch\u00e2u \u00c2u (EN).&nbsp;<\/p><p>Hi\u1ec7n nay, h\u1ec7 th\u1ed1ng c\u1ee7a Hi\u1ec7p h\u1ed9i K\u1ef9 s\u01b0 \u00d4 t\u00f4 Qu\u1ed1c t\u1ebf (SAE) l\u00e0 h\u1ec7 th\u1ed1ng ph\u1ed5 bi\u1ebfn nh\u1ea5t. H\u1ec7 th\u1ed1ng n\u00e0y s\u1eed d\u1ee5ng 3 s\u1ed1 \u0111\u1ec3 \u0111\u1eb7t t\u00ean cho c\u00e1c c\u1ea5p \u0111\u1ed9 kh\u00e1c nhau. S\u1ed1 \u0111\u1ea7u ti\u00ean c\u00f3 ngh\u0129a l\u00e0 lo\u1ea1i h\u1ee3p kim, v\u00e0 c\u00e1c s\u1ed1 c\u00f2n l\u1ea1i gi\u1ea3i th\u00edch t\u1ef7 l\u1ec7 c\u1ee7a n\u00f3, ch\u1eb3ng h\u1ea1n nh\u01b0 304. C\u00e1c c\u1ea5p th\u00e9p kh\u00f4ng g\u1ec9 ph\u1ed5 bi\u1ebfn, bao g\u1ed3m c\u00e1c lo\u1ea1i 200, 300, 400, 500, 600 v\u00e0 900, c\u0169ng t\u1eeb SAE.&nbsp;<\/p><p>Vi\u1ec7n S\u1eaft v\u00e0 Th\u00e9p Hoa K\u1ef3 (AISI) c\u0169ng \u0111\u00e3 ph\u00e1t tri\u1ec3n m\u1ed9t h\u1ec7 th\u1ed1ng. H\u1ec7 th\u1ed1ng n\u00e0y t\u01b0\u01a1ng t\u1ef1 nh\u01b0 SAE, v\u00ec v\u1eady h\u1ecd kh\u00f4ng s\u1eed d\u1ee5ng n\u00f3 n\u1eefa.<\/p><p>M\u1ed7i h\u1ec7 th\u1ed1ng c\u00f3 c\u00e1ch ti\u1ebfp c\u1eadn kh\u00e1c nhau, d\u1eabn \u0111\u1ebfn c\u00f9ng m\u1ed9t lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u00ean kh\u00e1c nhau trong c\u00e1c h\u1ec7 th\u1ed1ng kh\u00e1c nhau. L\u1ea5y SAE Grade 304 l\u00e0m v\u00ed d\u1ee5; n\u00f3 c\u00f3 th\u1ec3 c\u00f3 t\u00ean kh\u00e1c nhau trong c\u00e1c ti\u00eau chu\u1ea9n kh\u00e1c:&nbsp;<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td>Li\u00ean Hi\u1ec7p Qu\u1ed1c<\/td><td>S30400<\/td><\/tr><tr><td>Ti\u00eau chu\u1ea9n Trung Qu\u1ed1c (GB)<\/td><td>06Cr19Ni10<\/td><\/tr><tr><td>Ti\u00eau chu\u1ea9n \u0110\u1ee9c (DIN)<\/td><td>X5CrNi18-9, X5CrNi18-10, X5CrNi19-9<\/td><\/tr><tr><td>S\u1ed1 EN<\/td><td>1.4305<\/td><\/tr><tr><td>Ti\u00eau chu\u1ea9n Ch\u00e2u \u00c2u (EN)<\/td><td>X8CrNiN18-9<\/td><\/tr><tr><td>Ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p Nh\u1eadt B\u1ea3n (JIS)<\/td><td>SUS 304, SUS 304-CSP<\/td><\/tr><tr><td>Ti\u00eau chu\u1ea9n Anh (BS)<\/td><td>304S 15, 304S 16, 304S 18, 304S 25, En58E<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 Austenitic<\/h2><p><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/type\/austenitic\/\">Th\u00e9p kh\u00f4ng g\u1ec9 Austenit<\/a> ch\u1ee9a \u00edt nh\u1ea5t 16% crom v\u00e0 6% niken, kh\u00f4ng t\u1eeb t\u00ednh khi \u1ee7, v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t, l\u1ea1nh v\u00e0 ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi. Kh\u00f4ng th\u1ec3 l\u00e0m c\u1ee9ng b\u1eb1ng x\u1eed l\u00fd nhi\u1ec7t. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c ph\u1ea9m v\u00e0 ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe, c\u0169ng nh\u01b0 trong s\u1ea3n xu\u1ea5t v\u1ecf b\u1ecdc ngo\u00e0i tr\u1eddi v\u00e0 b\u00ecnh ch\u1ecbu \u00e1p su\u1ea5t \u0111\u00f4ng l\u1ea1nh. Austenitic ch\u1ee7 y\u1ebfu bao g\u1ed3m lo\u1ea1t 200 v\u00e0 lo\u1ea1t 300.<\/p><h3 class=\"wp-block-heading\">L\u1edbp 304\u2014\u2014\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u00e0 r\u1ed9ng r\u00e3i<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-304\/\">th\u00e9p kh\u00f4ng g\u1ec9 304<\/a>, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 18\/8 (18% Cr v\u00e0 8% Ni), c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi v\u00e0 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t \u1edf nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 th\u1ea5p. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 c\u1ea5p th\u1ef1c ph\u1ea9m th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m \u0111\u1ed3 n\u1ea5u n\u01b0\u1edbng. Tuy nhi\u00ean, kh\u00f4ng n\u00ean ti\u1ebfp x\u00fac v\u1edbi n\u01b0\u1edbc mu\u1ed1i trong th\u1eddi gian d\u00e0i v\u00ec kh\u1ea3 n\u0103ng ch\u1ecbu n\u01b0\u1edbc mu\u1ed1i k\u00e9m.&nbsp;<\/li><\/ul><h3 class=\"wp-block-heading\">C\u1ea5p 316\u2014\u2014Th\u00e9p kh\u00f4ng g\u1ec9 c\u1ea5p th\u1ef1c ph\u1ea9m v\u00e0 h\u00e0ng h\u1ea3i<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-316\/\">th\u00e9p kh\u00f4ng g\u1ec9 316<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n ion clorua tuy\u1ec7t v\u1eddi v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng h\u1ea3i v\u00e0 d\u1ee5ng c\u1ee5 ph\u1eabu thu\u1eadt. Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a n\u00f3 t\u1ed1t h\u01a1n 304, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng clorua. C\u00f3 m\u1ed9t s\u1ed1 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 316 kh\u00e1c nhau, bao g\u1ed3m c\u00e1c bi\u1ebfn th\u1ec3 L, F, N v\u00e0 H, m\u1ed7i lo\u1ea1i c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh v\u00e0 c\u00f4ng d\u1ee5ng h\u01a1i kh\u00e1c nhau. V\u00ed d\u1ee5, th\u00e9p kh\u00f4ng g\u1ec9 316L l\u00e0 phi\u00ean b\u1ea3n th\u00e9p kh\u00f4ng g\u1ec9 316 c\u00f3 h\u00e0m l\u01b0\u1ee3ng carbon th\u1ea5p gi\u00fap gi\u1ea3m thi\u1ec3u l\u01b0\u1ee3ng k\u1ebft t\u1ee7a cacbua trong qu\u00e1 tr\u00ecnh h\u00e0n.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 201<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-201\/\">th\u00e9p kh\u00f4ng g\u1ec9 201<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t, \u0111\u1ed9 b\u1ec1n cao, h\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p, th\u00edch h\u1ee3p cho gia c\u00f4ng ngu\u1ed9i, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb gia d\u1ee5ng v\u00e0 \u0111\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp. H\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p h\u01a1n (5%) v\u00e0 r\u1ebb h\u01a1n 304 (8%).<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 202<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-202\/\">th\u00e9p kh\u00f4ng g\u1ec9 202<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t, th\u00edch h\u1ee3p cho gia c\u00f4ng ngu\u1ed9i, d\u00f9ng trong thi\u1ebft b\u1ecb ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m. H\u00e0m l\u01b0\u1ee3ng mangan cao h\u01a1n v\u00e0 \u0111\u1ed9 b\u1ec1n cao h\u01a1n 201.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 205<\/h3><ul class=\"wp-block-list\"><li>Th\u00e9p kh\u00f4ng g\u1ec9 205 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi v\u00e0 \u0111\u1ed9 c\u1ee9ng cao, th\u00edch h\u1ee3p \u0111\u1ec3 gia c\u00f4ng ngu\u1ed9i v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong n\u1ed9i th\u1ea5t \u00f4 t\u00f4 v\u00e0 m\u00e1y gi\u1eb7t. N\u00f3 c\u00f3 h\u00e0m l\u01b0\u1ee3ng mangan v\u00e0 \u0111\u1ed9 b\u1ec1n cao h\u01a1n 201.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 301<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-301\/\">th\u00e9p kh\u00f4ng g\u1ec9 301<\/a> l\u00e0 phi\u00ean b\u1ea3n c\u1ea3i ti\u1ebfn c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 c\u1ea5p 304, ch\u1ee9a \u00edt crom v\u00e0 niken h\u01a1n, gi\u00fap t\u0103ng ph\u1ea1m vi l\u00e0m c\u1ee9ng nh\u01b0ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u01b0\u01a1ng t\u1ef1. N\u00f3 b\u1ec1n, d\u1ec5 u\u1ed1n v\u00e0 ch\u1ed1ng \u0103n m\u00f2n trong m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n nh\u1eb9 \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong n\u1ed9i th\u1ea5t \u00f4 t\u00f4 v\u00e0 \u0111\u1ed3 n\u1ea5u n\u01b0\u1edbng.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 302<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-302\/\">th\u00e9p kh\u00f4ng g\u1ec9 302<\/a> c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai t\u1ed1t v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m l\u00f2 xo, v\u00f2ng \u0111\u1ec7m, v.v. N\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n lo\u1ea1i 301 v\u00e0 h\u00e0m l\u01b0\u1ee3ng carbon c\u1ee7a n\u00f3 cao h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi lo\u1ea1i 304.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 303<\/h3><ul class=\"wp-block-list\"><li>V\u1edbi h\u00e0m l\u01b0\u1ee3ng l\u01b0u hu\u1ef3nh cao, <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-303\/\">th\u00e9p kh\u00f4ng g\u1ec9 303<\/a> d\u1ec5 c\u1eaft v\u00e0 gia c\u00f4ng h\u01a1n. Tuy nhi\u00ean, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 d\u1ebbo dai c\u1ee7a n\u00f3 b\u1ecb gi\u1ea3m v\u00e0 kh\u00f4ng t\u1ed1t b\u1eb1ng c\u00e1c lo\u1ea1i crom-niken kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 304 ho\u1eb7c 316, \u0111\u1ed1i v\u1edbi c\u00e1c lo\u1ea1i \u1ed1c v\u00edt v\u00e0 ph\u1ee5 ki\u1ec7n.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 304<\/h3><ul class=\"wp-block-list\"><li>Th\u00e9p kh\u00f4ng g\u1ec9 SAE 304 l\u00e0 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 ph\u1ed5 bi\u1ebfn nh\u1ea5t. \u0110\u00e2y l\u00e0 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 austenit ch\u1ee9a s\u1eaft, cacbon, crom v\u00e0 niken v\u00e0 kh\u00f4ng c\u00f3 t\u1eeb t\u00ednh. N\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao h\u01a1n th\u00e9p th\u00f4ng th\u01b0\u1eddng, d\u1ec5 t\u1ea1o h\u00ecnh v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng gia d\u1ee5ng v\u00e0 c\u00f4ng nghi\u1ec7p.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 305<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-305\/\">th\u00e9p kh\u00f4ng g\u1ec9 305<\/a> c\u00f3 t\u1ef7 l\u1ec7 l\u00e0m c\u1ee9ng th\u1ea5p v\u00e0 d\u1ec5 t\u1ea1o h\u00ecnh v\u00e0 k\u00e9o h\u01a1n. N\u00f3 c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o h\u00ecnh tuy\u1ec7t v\u1eddi v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c linh ki\u1ec7n \u0111i\u1ec7n t\u1eed, thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp, \u0111\u1ed3 gia d\u1ee5ng v\u00e0 ph\u1ee5 t\u00f9ng \u00f4 t\u00f4.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 308<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-308\/\">th\u00e9p kh\u00f4ng g\u1ec9 308<\/a>, ch\u1ee7 y\u1ebfu bao g\u1ed3m crom 20% v\u00e0 niken 10%, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi kh\u1ea3 n\u0103ng h\u00e0n tuy\u1ec7t v\u1eddi v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m v\u1eadt li\u1ec7u \u0111\u1ed9n, ch\u1eb3ng h\u1ea1n nh\u01b0 que h\u00e0n ho\u1eb7c d\u00e2y h\u00e0n, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ec3 h\u00e0n th\u00e9p kh\u00f4ng g\u1ec9 304 ho\u1eb7c c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 t\u01b0\u01a1ng t\u1ef1.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 309<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-309\/\">th\u00e9p kh\u00f4ng g\u1ec9 309<\/a> \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n \u0111\u1eb7c bi\u1ec7t cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ed1ng \u0103n m\u00f2n \u1edf nhi\u1ec7t \u0111\u1ed9 cao cho c\u00e1c th\u00e0nh ph\u1ea7n l\u00f2 v\u00e0 l\u1edbp l\u00f3t l\u00f2. N\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a l\u00ean \u0111\u1ebfn 1900\u00b0F \u1edf nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i v\u00e0 c\u00f3 \u0111\u1eb7c t\u00ednh ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao t\u1ed1t h\u01a1n 304.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 314<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-314\/\">th\u00e9p kh\u00f4ng g\u1ec9 314 <\/a>c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a \u1edf nhi\u1ec7t \u0111\u1ed9 c\u1ef1c cao v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c b\u1ed9 ph\u1eadn l\u00f2 v\u00e0 l\u1edbp l\u00f3t l\u00f2. N\u00f3 c\u00f3 hi\u1ec7u su\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao t\u1ed1t h\u01a1n 309.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 316<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-316\/\">th\u00e9p kh\u00f4ng g\u1ec9 316<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n ion clorua tuy\u1ec7t v\u1eddi do b\u1ed5 sung molypden v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng h\u1ea3i v\u00e0 d\u1ee5ng c\u1ee5 ph\u1eabu thu\u1eadt. Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a n\u00f3 t\u1ed1t h\u01a1n 304, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng clorua.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 317<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/317-317l\/\">th\u00e9p kh\u00f4ng g\u1ec9 317<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n ion clorua cao h\u01a1n 316 v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong thi\u1ebft b\u1ecb x\u1eed l\u00fd h\u00f3a ch\u1ea5t.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 321<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-321\/\">th\u00e9p kh\u00f4ng g\u1ec9 321<\/a> \u0111\u01b0\u1ee3c b\u1ed5 sung titan \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n li\u00ean h\u1ea1t v\u00e0 ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c th\u00e0nh ph\u1ea7n h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 h\u1ec7 th\u1ed1ng x\u1ea3.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 347<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-347\/\">th\u00e9p kh\u00f4ng g\u1ec9 347 <\/a>c\u00f3 th\u00eam niobi, mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed5ng th\u1ec3 t\u1ed1t t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi th\u00e9p 304. N\u00f3 c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 t\u1eeb 800 \u2013 1500\u00b0F (427 \u2013 816\u00b0C) v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong thi\u1ebft b\u1ecb x\u1eed l\u00fd h\u00f3a ch\u1ea5t.<\/li><\/ul><h3 class=\"wp-block-heading\">C\u1ea5p 904L<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-904l\/\">Th\u00e9p kh\u00f4ng g\u1ec9 904L <\/a>c\u00f3 h\u00e0m l\u01b0\u1ee3ng niken v\u00e0 crom cao v\u00e0 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ch\u1ed1ng \u0103n m\u00f2n v\u00e0 r\u1ed7 trong nhi\u1ec1u m\u00f4i tr\u01b0\u1eddng x\u1eed l\u00fd kh\u00e1c nhau. N\u00f3 ch\u1ed1ng l\u1ea1i s\u1ef1 t\u1ea5n c\u00f4ng c\u1ee7a n\u01b0\u1edbc bi\u1ec3n \u1ea5m v\u00e0 clorua v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd h\u00f3a ch\u1ea5t v\u00e0 x\u1eed l\u00fd n\u01b0\u1edbc bi\u1ec3n.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp A2<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-a2\/\">Th\u00e9p kh\u00f4ng g\u1ec9 A2<\/a><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/austenitic\/grade-a2\/\"> <\/a>c\u00f3 b\u1ec1 m\u1eb7t m\u00e0u b\u1ea1c, h\u01a1i ph\u1ea3n chi\u1ebfu. Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a n\u00f3 r\u1ea5t t\u1ed1t. V\u00e0 n\u00f3 c\u00f3 s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng gia c\u00f4ng. C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn c\u1ee7a n\u00f3 bao g\u1ed3m thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp, c\u00e1c th\u00e0nh ph\u1ea7n x\u00e2y d\u1ef1ng, ph\u1ee5 t\u00f9ng \u00f4 t\u00f4 v\u00e0 th\u00f9ng ch\u1ee9a h\u00f3a ch\u1ea5t.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 18\/8<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/18-8\/\">18\/8<\/a>, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 304, ch\u1ee7 y\u1ebfu bao g\u1ed3m crom 18% v\u00e0 niken 8%. \u0110\u1eb7c \u0111i\u1ec3m \u0111\u00e1ng ch\u00fa \u00fd nh\u1ea5t c\u1ee7a n\u00f3 l\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp, thi\u1ebft b\u1ecb y t\u1ebf, ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m, v.v.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 18\/10<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-18-10\/\">th\u00e9p kh\u00f4ng g\u1ec9 18\/10<\/a>, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 304, ch\u1ee9a 18% crom v\u00e0 10% niken. N\u00f3 ch\u1ed1ng \u0103n m\u00f2n, b\u1ec1n v\u00e0 c\u1ee9ng v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp, \u0111\u1ed3 d\u00f9ng tr\u00ean b\u00e0n \u0103n, thi\u1ebft b\u1ecb y t\u1ebf, \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p, x\u00e2y d\u1ef1ng v\u00e0 \u0111\u1ed3 trang s\u1ee9c.<\/li><\/ul><h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 Ferritic<\/h2><p><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/type\/ferritic\/\">Th\u00e9p kh\u00f4ng g\u1ec9 Ferritic<\/a> ch\u1ee9a 10,5% \u0111\u1ebfn 27% crom, \u00edt ho\u1eb7c kh\u00f4ng c\u00f3 niken, v\u00e0 c\u00f3 chi ph\u00ed th\u1ea5p h\u01a1n. N\u00f3 c\u00f3 t\u1eeb t\u00ednh, kh\u00f4ng th\u1ec3 l\u00e0m c\u1ee9ng b\u1eb1ng x\u1eed l\u00fd nhi\u1ec7t v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t. Vi\u1ec7c b\u1ed5 sung niobi, titan v\u00e0 zirconi gi\u00fap c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng h\u00e0n. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u1ed1ng x\u1ea3 \u00f4 t\u00f4, c\u00e1c \u1ee9ng d\u1ee5ng x\u00e2y d\u1ef1ng v\u00e0 k\u1ebft c\u1ea5u, c\u00e1nh qu\u1ea1t v\u00e0 t\u1ea5m ngu\u1ed3n trong pin nhi\u00ean li\u1ec7u oxit r\u1eafn. Ferrite bao g\u1ed3m m\u1ed9t s\u1ed1 m\u1eabu trong d\u00f2ng 400.<\/p><h3 class=\"wp-block-heading\">L\u1edbp 405<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-405\/\">th\u00e9p kh\u00f4ng g\u1ec9 405<\/a> r\u1ebb h\u01a1n th\u00e9p austenit. C\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n axit t\u1ed1t v\u00e0 c\u00f3 t\u1eeb t\u00ednh. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u1ed1ng m\u00e1y ph\u00e1t h\u01a1i n\u01b0\u1edbc, h\u1ed9p \u1ee7, v.v.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 408<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-408\/\">th\u00e9p kh\u00f4ng g\u1ec9 408<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu t\u1ed1t v\u1edbi h\u1ea7u h\u1ebft c\u00e1c axit oxy h\u00f3a v\u00e0 h\u01a1i mu\u1ed1i, c\u00f3 t\u1eeb t\u00ednh v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong b\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn l\u00f2. Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n th\u1ea5p h\u01a1n th\u00e9p austenit.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 409<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-409\/\">th\u00e9p kh\u00f4ng g\u1ec9 409<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 t\u1eeb t\u00ednh t\u1ed1t. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng \u1ed1ng x\u1ea3 \u00f4 t\u00f4, gi\u00e1 th\u00e0nh r\u1ebb v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n th\u1ea5p h\u01a1n 430.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 414<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-414\/\">th\u00e9p kh\u00f4ng g\u1ec9 414<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 t\u1eeb t\u00ednh t\u1ed1t. N\u00f3 c\u00f3 hi\u1ec7u su\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao t\u1ed1t h\u01a1n 409 v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong thi\u1ebft b\u1ecb n\u00f4ng nghi\u1ec7p.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 429<\/h3><ul class=\"wp-block-list\"><li>Th\u00e9p kh\u00f4ng g\u1ec9 429 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 t\u1eeb t\u00ednh t\u1ed1t, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong n\u1ed9i th\u1ea5t \u00f4 t\u00f4 v\u00e0 thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp. N\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng axit nitric t\u1ed1t h\u01a1n 430.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 430<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-430\/\" data-type=\"link\" data-id=\"https:\/\/steelprogroup.com\/stainless-steel\/grades\/grade-430\/\">th\u00e9p kh\u00f4ng g\u1ec9 430<\/a> c\u00f3 t\u1eeb t\u00ednh v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n g\u1ea7n b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 304, nh\u01b0ng kh\u1ea3 n\u0103ng h\u00e0n k\u00e9m do h\u00e0m l\u01b0\u1ee3ng cacbon cao v\u00e0 thi\u1ebfu c\u00e1c th\u00e0nh ph\u1ea7n \u1ed5n \u0111\u1ecbnh. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c chi ti\u1ebft trang tr\u00ed v\u00e0 ph\u1ee5 t\u00f9ng \u00f4 t\u00f4 v\u00e0 l\u00e0 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 ferritic \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 434<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-434\/\">th\u00e9p kh\u00f4ng g\u1ec9 434 <\/a>c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7 v\u00e0 t\u1eeb t\u00ednh tuy\u1ec7t v\u1eddi v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong n\u1ed9i th\u1ea5t \u00f4 t\u00f4 v\u00e0 thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp. Th\u00eam molypden gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 436<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-436\/\">th\u00e9p kh\u00f4ng g\u1ec9 436 <\/a>c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n axit citric v\u00e0 axit nitric tuy\u1ec7t v\u1eddi, c\u00f3 t\u1eeb t\u00ednh v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp v\u00e0 n\u1ed9i th\u1ea5t \u00f4 t\u00f4. Th\u00eam molypden gi\u00fap ch\u1ed1ng axit t\u1ed1t h\u01a1n.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 442<\/h3><ul class=\"wp-block-list\"><li>Th\u00e9p kh\u00f4ng g\u1ec9 442 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t, c\u00f3 t\u1eeb t\u00ednh, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c b\u1ed9 ph\u1eadn l\u00f2 v\u00e0 b\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t. N\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a t\u1ed1t h\u01a1n 430.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 444<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-444\/\">th\u00e9p kh\u00f4ng g\u1ec9 444 <\/a>c\u00f3 b\u1ed5 sung molypden \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7 v\u00e0 \u0103n m\u00f2n khe h\u1edf, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a v\u00e0 t\u00ednh ch\u1ea5t t\u1eeb t\u00ednh t\u1ed1t, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong b\u00ecnh n\u01b0\u1edbc n\u00f3ng v\u00e0 m\u00e1y n\u01b0\u1edbc n\u00f3ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 18\/0<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/18-0\/\">Th\u00e9p kh\u00f4ng g\u1ec9 18\/0<\/a> \u0111\u01b0\u1ee3c c\u1ea5u th\u00e0nh t\u1eeb crom 18% v\u00e0 niken 0% v\u00e0 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 430 (AISI). N\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a v\u00e0 \u0103n m\u00f2n t\u1ed1t, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n nh\u1eb9. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong \u0111\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp, b\u1ed3n r\u1eeda v\u00e0 thi\u1ebft b\u1ecb.<\/li><\/ul><h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 Martensitic<\/h2><p><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/type\/martensitic\/\">Th\u00e9p kh\u00f4ng g\u1ec9 Martensitic<\/a> ch\u1ee9a 10,5%-18% Cr, 0,15%C v\u00e0 0,1%Mn. N\u00f3 c\u00f3 t\u1eeb t\u00ednh, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u1eeba ph\u1ea3i v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng b\u1eb1ng x\u1eed l\u00fd nhi\u1ec7t. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong l\u01b0\u1ee1i dao, d\u1ee5ng c\u1ee5 ph\u1eabu thu\u1eadt, l\u01b0\u1ee1i dao c\u1ea1o, tua bin th\u1ee7y l\u1ef1c v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai cao. Martensite ch\u1ee7 y\u1ebfu bao g\u1ed3m m\u1ed9t s\u1ed1 m\u1eabu trong lo\u1ea1t 400.<\/p><h3 class=\"wp-block-heading\">L\u1edbp 410<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-410\/\">th\u00e9p kh\u00f4ng g\u1ec9 410<\/a> c\u00f3 h\u00e0m l\u01b0\u1ee3ng niken r\u1ea5t th\u1ea5p \u0111\u1ebfn b\u1eb1ng kh\u00f4ng (0\u20130,75%), c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t v\u1edbi kh\u00f4ng kh\u00ed, n\u01b0\u1edbc v\u00e0 m\u1ed9t s\u1ed1 h\u00f3a ch\u1ea5t, v\u00e0 c\u00f3 t\u1eeb t\u00ednh. \u0110\u00e2y l\u00e0 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 l\u00e0m c\u1ee9ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng b\u1eb1ng c\u00e1ch x\u1eed l\u00fd nhi\u1ec7t \u0111\u1ec3 s\u1eed d\u1ee5ng trong van v\u00e0 \u0111\u1ed3 n\u1ea5u n\u01b0\u1edbng.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 410S<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-410s\/\">Th\u00e9p kh\u00f4ng g\u1ec9 410S<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a t\u1ed1t, c\u00f3 t\u1eeb t\u00ednh v\u00e0 c\u00f3 h\u00e0m l\u01b0\u1ee3ng carbon th\u1ea5p h\u01a1n 410, d\u1eabn \u0111\u1ebfn kh\u1ea3 n\u0103ng h\u00e0n t\u1ed1t h\u01a1n v\u00e0 \u0111\u1ed9 nh\u1ea1y n\u1ee9t th\u1ea5p h\u01a1n. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng h\u00f3a d\u1ea7u.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 416<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-416\/\">th\u00e9p kh\u00f4ng g\u1ec9 416<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng clorua k\u00e9m, kh\u1ea3 n\u0103ng ch\u1ed1ng axit, ki\u1ec1m v\u00e0 n\u01b0\u1edbc ng\u1ecdt t\u1ed1t, c\u00f3 t\u1eeb t\u00ednh v\u00e0 d\u1ec5 gia c\u00f4ng h\u01a1n do h\u00e0m l\u01b0\u1ee3ng l\u01b0u hu\u1ef3nh cao h\u01a1n. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ed1c v\u00edt, b\u00e1nh r\u0103ng v\u00e0 tr\u1ee5c b\u01a1m.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 420<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-420\/\">th\u00e9p kh\u00f4ng g\u1ec9 420<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i axit y\u1ebfu, ki\u1ec1m v\u00e0 n\u01b0\u1edbc sau khi t\u00f4i luy\u1ec7n, c\u00f3 t\u1eeb t\u00ednh, c\u00f3 h\u00e0m l\u01b0\u1ee3ng cacbon cao h\u01a1n v\u00e0 c\u00f3 th\u1ec3 t\u00f4i luy\u1ec7n b\u1eb1ng c\u00e1ch x\u1eed l\u00fd nhi\u1ec7t. D\u00f9ng l\u00e0m d\u1ee5ng c\u1ee5 ph\u1eabu thu\u1eadt v\u00e0 dao k\u00e9o.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 422<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-422\/\">422 Th\u00e9p kh\u00f4ng g\u1ec9<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n h\u1ea1n ch\u1ebf, c\u00f3 t\u1eeb t\u00ednh v\u00e0 c\u00f3 \u0111\u1ed9 c\u1ee9ng cao \u1edf nhi\u1ec7t \u0111\u1ed9 cao. N\u00f3 c\u00f3 hi\u1ec7u su\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao t\u1ed1t h\u01a1n 410 v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u1edf nhi\u1ec7t \u0111\u1ed9 cao l\u00ean \u0111\u1ebfn 1200\u00b0F, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1nh tuabin v\u00e0 \u1ed1c v\u00edt nhi\u1ec7t \u0111\u1ed9 cao.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 431<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-431\/\">th\u00e9p kh\u00f4ng g\u1ec9 431<\/a> c\u00f3 th\u00eam niken, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n tuy\u1ec7t v\u1eddi, c\u00f3 t\u1eeb t\u00ednh v\u00e0 c\u00f3 th\u1ec3 x\u1eed l\u00fd nhi\u1ec7t \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n cao. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c b\u1ed9 ph\u1eadn m\u00e1y bay, bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u1edbp 440<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-440\/\">th\u00e9p kh\u00f4ng g\u1ec9 440<\/a> c\u1ee9ng do h\u00e0m l\u01b0\u1ee3ng cacbon cao v\u00e0 c\u00f3 th\u1ec3 x\u1eed l\u00fd nhi\u1ec7t \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n r\u1ea5t cao. Tuy nhi\u00ean, n\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n h\u1ea1n ch\u1ebf, c\u00f3 t\u1eeb t\u00ednh v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho d\u1ee5ng c\u1ee5 c\u1eaft v\u00e0 l\u01b0\u1ee1i dao.<\/li><\/ul><h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 Duplex<\/h2><p><span style=\"box-sizing: border-box; margin: 0px; padding: 0px;\"><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/type\/duplex\/\">Th\u00e9p kh\u00f4ng g\u1ec9 k\u00e9p<\/a>&nbsp;l\u00e0 h\u1ee3p kim hai pha, ferritic, austenitic ch\u1ee9a 19% \u0111\u1ebfn 32% crom, l\u00ean \u0111\u1ebfn 5% molypden v\u00e0 h\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p h\u01a1n.<\/span> Th\u00e9p kh\u00f4ng g\u1ec9 Duplex c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi v\u00e0 c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o g\u1ea5p kho\u1ea3ng hai l\u1ea7n th\u00e9p kh\u00f4ng g\u1ec9 austenit. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ng\u00e0nh d\u1ea7u kh\u00ed, nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t v\u00e0 h\u00f3a d\u1ea7u, b\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t, x\u00e2y d\u1ef1ng v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng trong ng\u00e0nh n\u01b0\u1edbc.<\/p><h2 class=\"wp-block-heading\">L\u01b0\u1ee3ng m\u01b0a th\u00e9p kh\u00f4ng g\u1ec9<\/h2><p><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/type\/precipitation-hardening\/\">Th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0m c\u1ee9ng b\u1eb1ng k\u1ebft t\u1ee7a (PH)<\/a> ch\u1ee9a 17% crom v\u00e0 4% niken, c\u0169ng nh\u01b0 c\u00e1c nguy\u00ean t\u1ed1 kh\u00e1c nh\u01b0 titan, nh\u00f4m v\u00e0 niobi. Ch\u00fang c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi c\u00e1c lo\u1ea1i austenit v\u00e0 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n cao th\u00f4ng qua qu\u00e1 tr\u00ecnh l\u00e0m c\u1ee9ng k\u1ebft t\u1ee7a. Ch\u00fang c\u00f3 t\u1eeb t\u00ednh v\u00e0 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n cao th\u00f4ng qua qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t \u0111\u01a1n gi\u1ea3n. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c th\u00f9ng ch\u1ee9a ch\u1ea5t th\u1ea3i h\u1ea1t nh\u00e2n, c\u00e1nh tuabin, ng\u00e0nh c\u00f4ng nghi\u1ec7p h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 thi\u1ebft b\u1ecb trong ng\u00e0nh c\u00f4ng nghi\u1ec7p gi\u1ea5y v\u00e0 b\u1ed9t gi\u1ea5y. 630 l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 PH ph\u1ed5 bi\u1ebfn nh\u1ea5t, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 17-4.<\/p><h3 class=\"wp-block-heading\">L\u1edbp 630<\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-630\/\">630 Th\u00e9p kh\u00f4ng g\u1ec9<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 ch\u1ecbu nhi\u1ec7t t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 304, \u0111\u1ed9 c\u1ee9ng cao, c\u00f3 t\u1eeb t\u00ednh v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p k\u1ebft t\u1ee7a. Tuy nhi\u00ean, do \u0111\u1eb7c t\u00ednh l\u00e0m c\u1ee9ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p k\u1ebft t\u1ee7a n\u00ean r\u1ea5t kh\u00f3 gia c\u00f4ng v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 ch\u1ebf bi\u1ebfn h\u00f3a ch\u1ea5t.<\/li><\/ul><h2 class=\"wp-block-heading\">Bi\u1ec3u \u0111\u1ed3 ph\u00e2n lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9<\/h2><p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 th\u00f4ng tin chi ti\u1ebft h\u01a1n v\u1ec1 t\u1eebng lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">C\u1ea5p<\/td><td>Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc<\/td><td>\u0110\u1ed9 b\u1ec1n k\u00e9o<\/td><td>Nhi\u1ec7t \u0111\u1ed9 s\u1eed d\u1ee5ng t\u1ed1i \u0111a<\/td><td>\u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/td><td>\u0110\u1ed9 d\u1ebbo (%)<\/td><td>\u0110\u1ed9 c\u1ee9ng (HB)<\/td><td>T\u1eeb t\u00ednh<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"8\">Austenit<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">201<\/td><td>16-18% Cr, 3,5-5,5% Ni, 5,5-7,5% Mn<\/td><td>515 MPa (75 Ksi)<\/td><td>700\u02daC (1292\u02daF)<\/td><td>1400-1450\u00b0C (2552-2642\u00b0F)<\/td><td>40%<\/td><td>250<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">202<\/td><td>17-19% Cr, 4-6% Ni, 7,5-10% Mn<\/td><td>515 MPa (75 Ksi)<\/td><td>800\u02daC (1472\u02daF)<\/td><td>1400-1450\u00b0C (2552-2642\u00b0F)<\/td><td>40%<\/td><td>250<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">205<\/td><td>16,5-18% Cr, 1-1,75% Ni, 14-15% Mn<\/td><td>515 MPa (75 Ksi)<\/td><td>800\u02daC (1472\u02daF)<\/td><td>1400-1450\u00b0C (2552-2642\u00b0F)<\/td><td>40%<\/td><td>250<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">301<\/td><td>16-18% Cr, 6-8% Ni<\/td><td>515 MPa (75 Ksi)<\/td><td>871 \u00b0C (1600 \u00b0F)<\/td><td>1399-1421\u00b0C (2550-2590\u00b0F)<\/td><td>40%<\/td><td>201<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">302<\/td><td>17-19% Cr, 8-10% Ni<\/td><td>585 MPa (85 Ksi)<\/td><td>870\u02daC (1598\u02daF)<\/td><td>1400-1420\u00b0C (2550-2590\u00b0F)<\/td><td>40%<\/td><td>201<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">303<\/td><td>17-19% Cr, 8-10% Ni, 0,15-0,35% S<\/td><td>690 MPa (100Ksi)<\/td><td>760\u02daC (1.400\u02daF)<\/td><td>1400-1420\u00b0C (2550-2590\u00b0F)<\/td><td>35%<\/td><td>262<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">304<\/td><td>18-20% Cr, 8-10.5% Ni<\/td><td>621 MPa (90 Ksi)<\/td><td>870\u02daC (1598\u02daF)<\/td><td>1399-1454\u00b0C (2550-2650\u00b0F)<\/td><td>45%<\/td><td>201<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">305<\/td><td>17-19% Cr, 10-13% Ni<\/td><td>515 MPa (75 ksi)<\/td><td>815\u00b0C (1500\u00b0F)<\/td><td>1375-1425\u00b0C (2507-2597\u00b0F)<\/td><td>40%<\/td><td>205<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">308<\/td><td>19-21% Cr, 9-11% Ni<\/td><td>620 MPa (90 ksi)<\/td><td>870\u02daC (1598\u02daF)<\/td><td>1400-1425\u00b0C (2552-2597\u00b0F)<\/td><td>35%<\/td><td>217<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">309<\/td><td>23% Cr, 13% Ni<\/td><td>620 MPa (89 Ksi)<\/td><td>1000\u02daC (1.832\u02daF)<\/td><td>1400-1455\u00b0C (2550-2651\u00b0F)<\/td><td>25%<\/td><td>180<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">314<\/td><td>24-26% Cr, 19-22% Ni<\/td><td>620MPa (90Ksi)<\/td><td>1100\u02daC (2012\u02daF)<\/td><td>1399-1421\u00b0C (2550-2590\u00b0F)<\/td><td>45%<\/td><td>217<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">316<\/td><td>16-18% Cr, 10-14% Ni, 2-3% Mo<\/td><td>579 MPa (84 Ksi)<\/td><td>800\u02daC (1.472\u02daF)<\/td><td>1371-1399\u00b0C (2500-2550\u00b0F)<\/td><td>45%<\/td><td>217<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">317<\/td><td>18-20% Cr, 11-15% Ni, 3-4% Mo<\/td><td>585MPa (85Ksi)<\/td><td>816\u02daC (1.500\u02daF)<\/td><td>1370-1400\u00b0C (2500-2550\u00b0F)<\/td><td>40%<\/td><td>217<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">321<\/td><td>17-19% Cr, 9-12% Ni, 0,7% Ti<\/td><td>620MPa (90Ksi)<\/td><td>816\u02daC (1.500\u02daF)<\/td><td>1400-1425\u00b0C (2550-2600\u00b0F)<\/td><td>45%<\/td><td>217<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">347<\/td><td>17-19% Cr, 9-12% Ni, 0,8% Nb<\/td><td>690 MPa (101 Ksi)<\/td><td>816\u02daC (1.500\u02daF)<\/td><td>1400-1425\u00b0C (2550-2600\u00b0F)<\/td><td>45%<\/td><td>217<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">904L<\/td><td>19-23% Cr, 23-28% Ni, 4,5% Mo<\/td><td>490 MPa (71 Ksi)<\/td><td>400\u02daC (752\u02daF)<\/td><td>1350-1400\u00b0C (2462-2552\u00b0F)<\/td><td>35%<\/td><td>200<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">A2<\/td><td>18% Cr, 8% Ni (T\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 304)<\/td><td>505 MPa (73 ksi)<\/td><td>870\u02daC (1598\u02daF)<\/td><td>1400-1450\u00b0C (2552-2642\u00b0F)<\/td><td>40%<\/td><td>123<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">18\/8<\/td><td>18% Cr, 8% Ni<\/td><td>505 MPa (73 ksi)<\/td><td>870\u02daC (1598\u02daF)<\/td><td>1400-1450\u00b0C (2552-2642\u00b0F)<\/td><td>40%<\/td><td>123<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">18\/10<\/td><td>18% Cr, 10% Ni<\/td><td>520 MPa (75 ksi)<\/td><td>870\u02daC (1598\u02daF)<\/td><td>1400-1450\u00b0C (2552-2642\u00b0F)<\/td><td>40%<\/td><td>129<\/td><td>KH\u00d4NG<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"8\">Ferritic<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">405<\/td><td>11,5-14,5% Cr<\/td><td>585 MPa (85 Ksi)<\/td><td>815\u02daC (1.499\u02daF)<\/td><td>1480-1530\u00b0C (2700-2790\u00b0F)<\/td><td>20%<\/td><td>200<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">408<\/td><td>11% Cr, 8-10% Ni<\/td><td>505 MPa (73 Ksi)<\/td><td>815\u02daC (1.499\u02daF)<\/td><td>1400-1455\u00b0C (2550-2651\u00b0F)<\/td><td>25%<\/td><td>170<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">409<\/td><td>10,5-11,75% Cr<\/td><td>448 MPa (65 Ksi)<\/td><td>815\u02daC (1.499\u02daF)<\/td><td>1425-1510\u00b0C (2597-2750\u00b0F)<\/td><td>25%<\/td><td>180<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">414<\/td><td>11.5-13% Cr<\/td><td>500MPa (73Ksi)<\/td><td>650\u02daC (1202\u02daF)<\/td><td>1425-1510\u00b0C (2597-2750\u00b0F)<\/td><td>20%<\/td><td>250<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">429<\/td><td>14-16% T\u00edn d\u1ee5ng<\/td><td>450MPa (65Ksi)<\/td><td>815\u02daC (1.499\u02daF)<\/td><td>1425-1510\u00b0C (2597-2750\u00b0F)<\/td><td>25%<\/td><td>200<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">430<\/td><td>16-18% Cr<\/td><td>450MPa (65Ksi)<\/td><td>815\u02daC (1.499\u02daF)<\/td><td>1425-1510\u00b0C (2597-2750\u00b0F)<\/td><td>25%<\/td><td>200<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">434<\/td><td>16-18% Cr\uff0c1% Mo<\/td><td>540 MPa (78 Ksi)<\/td><td>815\u02daC (1.499\u02daF)<\/td><td>1426-1510\u00b0C (2600-2750\u00b0F)<\/td><td>25%<\/td><td>200<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">436<\/td><td>17% Cr\u30011.25% Mo<\/td><td>459 MPa (67 Ksi)<\/td><td>815\u02daC (1.499\u02daF)<\/td><td>1425-1510\u00b0C (2600-2750\u00b0F)<\/td><td>25%<\/td><td>200<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">442<\/td><td>18-23% T\u00edn d\u1ee5ng<\/td><td>515-550MPa(77-80Ksi)<\/td><td>925-980\u02daC (1.700\/1.800\u02daF)<\/td><td>1065-1120\u00b0C (1950-2048\u02daF)<\/td><td>20%<\/td><td>250<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">444<\/td><td>17-20% Cr\u30011.8-2.5% Th\u00e1ng<\/td><td>415 MPa (60 Ksi)<\/td><td>950\u02daC (1.752\u02daF)<\/td><td>1405-1495\u00b0C (2561-2723\u00b0F)<\/td><td>25%<\/td><td>200<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">18\/0<\/td><td>18% Cr, 0% Ni<\/td><td>450 MPa (65 ksi)<\/td><td>760\u00b0C (1400\u00b0F)<\/td><td>1425-1510\u00b0C (2597-2750\u00b0F)<\/td><td>30%<\/td><td>200<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"8\">Martensit<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">410<\/td><td>11,5-13,5% Cr\u30010,15% C<\/td><td>500-1400MPa (73-203Ksi)<\/td><td>650\u02daC (1202\u02daF)<\/td><td>1482-1532\u00b0C (2700-2790\u00b0F)<\/td><td>15%<\/td><td>250<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">410S<\/td><td>11,5-13,5% Cr\u30010,08% C<\/td><td>444 MPa (64 Ksi)<\/td><td>705\u02daC (1300\u02daF)<\/td><td>1482-1532\u00b0C (2700-2790\u00b0F)<\/td><td>20%<\/td><td>250<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">416<\/td><td>12-14% Cr\u30010,15-0,35% S<\/td><td>517 MPa (75 Ksi)<\/td><td>760\u02daC (1.400\u02daF)<\/td><td>1480-1530\u00b0C (2696-2786\u00b0F)<\/td><td>25%<\/td><td>250<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">420<\/td><td>12-14% Cr\u30010,15-0,45% C<\/td><td>586 MPa (85 Ksi) khi \u1ee7<\/td><td>650\u02daC (1202\u02daF)<\/td><td>1454-1510\u00b0C (2649-2750\u00b0F)<\/td><td>20%<\/td><td>250<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">422<\/td><td>11,5-14% Cr\u30010,20-0,25% C<\/td><td>760 MPa (110 Ksi)<\/td><td>760\u02daC (1.400\u02daF)<\/td><td>1483\u00b0C (2700\u00b0F)<\/td><td>15%<\/td><td>250<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">431<\/td><td>15-17% Cr\u30011,25-2,5% Ni<\/td><td>500-1500MPa (73-217Ksi)<\/td><td>650\u02daC (1202\u02daF)<\/td><td>1482-1532\u00b0C (2700-2790\u00b0F)<\/td><td>20%<\/td><td>250<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">440<\/td><td>16-18% Cr\u30010,75-1,20% C<\/td><td>758 MPa (110 Ksi)<\/td><td>760\u02daC (1.400\u02daF)<\/td><td>1483\u00b0C (2700\u00b0F)<\/td><td>15%<\/td><td>250<\/td><td>\u0110\u00fang<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"8\">S\u1ef1 k\u1ebft t\u1ee7a<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">630<\/td><td>16-17% Cr,4-5% Ni,3-5% Cu<\/td><td>1103 MPa (160 Ksi)<\/td><td>316\u02daC (600\u02daF)<\/td><td>1404-1440\u00b0C (2560-2625\u00b0F)<\/td><td>15%<\/td><td>350<\/td><td>\u0110\u00fang<\/td><\/tr><\/tbody><\/table><\/figure><p>T\u1ea3i xu\u1ed1ng <a href=\"https:\/\/steelprogroup.com\/wp-content\/uploads\/2025\/06\/Stainless-Steel-Grades-Chart.pdf\">Bi\u1ec3u \u0111\u1ed3 c\u1ea5p \u0111\u1ed9 th\u00e9p kh\u00f4ng g\u1ec9 PDF<\/a>\u00a0<\/p><h2 class=\"wp-block-heading\">So s\u00e1nh c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 th\u00f4ng d\u1ee5ng<\/h2><p>C\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 ph\u1ed5 bi\u1ebfn l\u00e0 lo\u1ea1i 200, lo\u1ea1i 300 v\u00e0 lo\u1ea1i 400. M\u1eb7c d\u00f9 lo\u1ea1i 200 v\u00e0 lo\u1ea1i 400, \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 n\u00e0o \u0111\u00f3, l\u00e0 nh\u1eefng l\u1ef1a ch\u1ecdn thay th\u1ebf cho lo\u1ea1i 300, nh\u01b0ng th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng c\u1ee7a ch\u00fang l\u1ea1i kh\u00e1c nhau.<\/p><h3 class=\"wp-block-heading\">D\u00f2ng 200 so v\u1edbi d\u00f2ng 300<\/h3><p><strong>Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc:<\/strong><\/p><p>D\u00f2ng 200: ch\u1ee7 y\u1ebfu bao g\u1ed3m crom, mangan v\u00e0 nit\u01a1, v\u1edbi h\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p h\u01a1n. Vi\u1ec7c b\u1ed5 sung nit\u01a1 l\u00e0m t\u0103ng \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a d\u00f2ng 200.<\/p><p><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/300-series\/\">D\u00f2ng 300<\/a>: ch\u1ee7 y\u1ebfu bao g\u1ed3m crom v\u00e0 niken. Th\u00e9p kh\u00f4ng g\u1ec9 304 ch\u1ee9a kho\u1ea3ng 18% crom v\u00e0 8% niken v\u00e0 l\u00e0 lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t trong d\u00f2ng 300. Th\u00e9p kh\u00f4ng g\u1ec9 316 ch\u1ee9a 2-3% molypden, gi\u00fap t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n.<\/p><p><strong>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n:<\/strong><\/p><p>D\u00f2ng 200: Th\u00e9p kh\u00f4ng g\u1ec9 d\u00f2ng 200 d\u1ec5 b\u1ecb \u0103n m\u00f2n trong m\u00f4i tr\u01b0\u1eddng h\u00f3a ch\u1ea5t do h\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p h\u01a1n v\u00e0 kh\u00f4ng <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/properties\/corrosion-resistant\/\">ch\u1ed1ng \u0103n m\u00f2n<\/a> nh\u01b0 d\u00f2ng 300.<\/p><p>D\u00f2ng 300: c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng c\u00f3 ch\u1ee9a clorua v\u00e0 c\u00e1c h\u00f3a ch\u1ea5t kh\u00e1c. Th\u00e9p kh\u00f4ng g\u1ec9 316 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng mu\u1ed1i v\u00e0 axit m\u1ea1nh h\u01a1n do b\u1ed5 sung th\u00eam molypden.<\/p><p><strong>T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc:<\/strong><\/p><p>D\u00f2ng 200: c\u00f3 \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 b\u1ec1n cao h\u01a1n, nh\u01b0ng kh\u00f4ng t\u1ed1t b\u1eb1ng d\u00f2ng 300 v\u1ec1 \u0111\u1ed9 d\u1ebbo v\u00e0 kh\u1ea3 n\u0103ng t\u1ea1o h\u00ecnh.<\/p><p>D\u00f2ng 300: c\u00f3 \u0111\u1ed9 d\u1ebbo v\u00e0 kh\u1ea3 n\u0103ng \u0111\u1ecbnh h\u00ecnh t\u1ed1t v\u00e0 c\u00f3 th\u1ec3 duy tr\u00ec c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc tuy\u1ec7t v\u1eddi trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 th\u1ea5p v\u00e0 cao.<\/p><p><strong>C\u00e1c l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng:<\/strong><\/p><p>D\u00f2ng 200: th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00e1y gi\u1eb7t, \u0111\u1ed3 d\u00f9ng tr\u00ean b\u00e0n \u0103n, thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i v\u00ec t\u00ednh kinh t\u1ebf v\u00e0 \u0111\u1ed9 c\u1ee9ng cao.<\/p><p>D\u00f2ng 300: \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i h\u01a1n, bao g\u1ed3m ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m, thi\u1ebft b\u1ecb h\u00f3a h\u1ecdc, thi\u1ebft b\u1ecb y t\u1ebf, trang tr\u00ed ki\u1ebfn tr\u00fac v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c. N\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i do hi\u1ec7u su\u1ea5t to\u00e0n di\u1ec7n tuy\u1ec7t v\u1eddi c\u1ee7a n\u00f3.<\/p><h3 class=\"wp-block-heading\">D\u00f2ng 300 so v\u1edbi d\u00f2ng 400<\/h3><p><strong>Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc:<\/strong><\/p><p>D\u00f2ng 300: ch\u1ee7 y\u1ebfu bao g\u1ed3m crom v\u00e0 niken, l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 austenit. 304 v\u00e0 316 l\u00e0 c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 ch\u00ednh.<\/p><p>D\u00f2ng 400: ch\u1ee7 y\u1ebfu bao g\u1ed3m crom v\u00e0 mangan, l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 ferritic v\u00e0 martensitic, kh\u00f4ng ch\u1ee9a ho\u1eb7c ch\u1ee9a r\u1ea5t \u00edt niken.<\/p><p><strong>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n:<\/strong><\/p><p>D\u00f2ng 300: Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt v\u00e0 h\u00f3a ch\u1ea5t. Th\u00e9p kh\u00f4ng g\u1ec9 316 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n clorua t\u1ed1t h\u01a1n do c\u00f3 ch\u1ee9a molypden.<\/p><p>D\u00f2ng 400: Kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n nh\u01b0 d\u00f2ng 300, nh\u01b0ng v\u1eabn ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong m\u1ed9t s\u1ed1 m\u00f4i tr\u01b0\u1eddng c\u1ee5 th\u1ec3. D\u00f2ng 400 ph\u00f9 h\u1ee3p h\u01a1n v\u1edbi m\u00f4i tr\u01b0\u1eddng kh\u00f4 v\u00e0 c\u00f3 nguy c\u01a1 \u0103n m\u00f2n th\u1ea5p h\u01a1n.<\/p><p><strong>T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc:<\/strong><\/p><p>D\u00f2ng 300: C\u00f3 tr\u1ea1ng th\u00e1i \u1ed5n \u0111\u1ecbnh v\u00e0 kh\u00f4ng th\u1ec3 l\u00e0m c\u1ee9ng b\u1eb1ng x\u1eed l\u00fd nhi\u1ec7t, nh\u01b0ng c\u00f3 \u0111\u1ed9 d\u1ebbo v\u00e0 \u0111\u1ed9 b\u1ec1n t\u1ed1t, ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/p><p>D\u00f2ng 400: C\u00f3 \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 b\u1ec1n cao, do \u0111\u00f3 ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 \u0111\u1ed9 b\u1ec1n cao v\u00e0 ch\u1ed1ng m\u00e0i m\u00f2n. Ch\u00fang c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng b\u1eb1ng c\u00e1ch x\u1eed l\u00fd nhi\u1ec7t nh\u01b0ng c\u00f3 \u0111\u1ed9 d\u1ebbo v\u00e0 \u0111\u1ed9 b\u1ec1n k\u00e9m.<\/p><p><strong>T\u1eeb t\u00ednh:<\/strong><\/p><p>D\u00f2ng 300: Th\u01b0\u1eddng kh\u00f4ng c\u00f3 t\u1eeb t\u00ednh do h\u00e0m l\u01b0\u1ee3ng niken cao.<\/p><p>D\u00f2ng 400: Th\u00e9p kh\u00f4ng g\u1ec9 t\u1eeb t\u00ednh, \u0111\u1eb7c bi\u1ec7t l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 martensitic nh\u01b0 th\u00e9p kh\u00f4ng g\u1ec9 410.<\/p><p><strong>C\u00e1c l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng:<\/strong><\/p><p>D\u00f2ng 300: Th\u00edch h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao v\u00e0 \u0111\u1ed9 b\u1ec1n cao, ch\u1eb3ng h\u1ea1n nh\u01b0 ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m, thi\u1ebft b\u1ecb h\u00f3a ch\u1ea5t v\u00e0 trang tr\u00ed ki\u1ebfn tr\u00fac.<\/p><p>D\u00f2ng 400: Th\u00edch h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao, ch\u1eb3ng h\u1ea1n nh\u01b0 ph\u1ee5 t\u00f9ng \u00f4 t\u00f4 v\u00e0 thi\u1ebft b\u1ecb n\u00f4ng nghi\u1ec7p.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 304 hay 316 t\u1ed1t h\u01a1n?<\/h3><p>S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa th\u00e9p kh\u00f4ng g\u1ec9 304 v\u00e0 316 l\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n. 304 ch\u1ee9a 18% crom v\u00e0 8% niken, trong khi 316 c\u00f3 2-3% molypden, gi\u00fap c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng n\u01b0\u1edbc m\u1eb7n v\u00e0 h\u00f3a ch\u1ea5t m\u1ea1nh, khi\u1ebfn 316 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng trong c\u00f4ng nghi\u1ec7p v\u00e0 h\u00e0ng h\u1ea3i.<\/p><p>\u0110\u1ed1i v\u1edbi m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng chung, 304 ph\u1ed5 bi\u1ebfn h\u01a1n do chi ph\u00ed th\u1ea5p h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u0111\u1ee7 cho h\u1ea7u h\u1ebft c\u00e1c m\u00f4i tr\u01b0\u1eddng. C\u1ea3 hai \u0111\u1ec1u c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1ecbnh h\u00ecnh cao v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m, \u0111\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp v\u00e0 ki\u1ebfn tr\u00fac, nh\u01b0ng 316 \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng h\u01a1n trong \u0111i\u1ec1u ki\u1ec7n \u0103n m\u00f2n nhi\u1ec1u h\u01a1n.<\/p><p>\u0110\u1ecdc b\u00e0i vi\u1ebft v\u1ec1 <a href=\"http:\/\/\u0110\u1ecdc b\u00e0i vi\u1ebft v\u1ec1 304 so v\u1edbi 316\" target=\"_blank\">304 so v\u1edbi 316<\/a>\uff01<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 304 hay 420 t\u1ed1t h\u01a1n?<\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 304 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 d\u1ebbo t\u1ed1t h\u01a1n, ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng nh\u01b0 \u0111\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp v\u00e0 x\u1eed l\u00fd h\u00f3a ch\u1ea5t. Th\u00e9p kh\u00f4ng g\u1ec9 304 kh\u00f4ng c\u00f3 t\u1eeb t\u00ednh v\u00e0 thu\u1ed9c d\u00f2ng 300.<\/p><p>Th\u00e9p kh\u00f4ng g\u1ec9 420, m\u1ed9t lo\u1ea1i th\u00e9p martensitic, c\u1ee9ng h\u01a1n do h\u00e0m l\u01b0\u1ee3ng carbon cao h\u01a1n v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd nhi\u1ec7t, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho dao v\u00e0 d\u1ee5ng c\u1ee5. Tuy nhi\u00ean, n\u00f3 kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n nh\u01b0 304, h\u1ea1n ch\u1ebf vi\u1ec7c s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng c\u00f3 m\u1ed1i lo ng\u1ea1i v\u1ec1 r\u1ec9 s\u00e9t.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 18-8 hay 304 t\u1ed1t h\u01a1n?<\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 18-8 v\u00e0 304 c\u00f3 th\u00e0nh ph\u1ea7n g\u1ea7n nh\u01b0 gi\u1ed1ng h\u1ec7t nhau, c\u1ea3 hai \u0111\u1ec1u ch\u1ee9a crom 18% v\u00e0 niken 8%. 304 l\u00e0 c\u1ea5p \u0111\u1ed9 c\u1ee5 th\u1ec3 c\u1ee7a 18-8 v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t cho c\u00e1c \u1ee9ng d\u1ee5ng chung nh\u01b0 thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp v\u00e0 x\u00e2y d\u1ef1ng.<\/p><p>M\u1eb7c d\u00f9 304 c\u00f3 th\u1ec3 c\u00f3 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u1eb7t ch\u1ebd h\u01a1n v\u1ec1 h\u00e0m l\u01b0\u1ee3ng carbon, nh\u01b0ng c\u1ea3 hai \u0111\u1ec1u c\u00f3 hi\u1ec7u su\u1ea5t t\u01b0\u01a1ng t\u1ef1 nhau v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n. 18-8 th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng trong c\u00e1c lo\u1ea1i \u1ed1c v\u00edt, trong khi 304 \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p ho\u1eb7c th\u01b0\u01a1ng m\u1ea1i.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 18-0 hay 18-10 t\u1ed1t h\u01a1n?<\/h3><p>S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa th\u00e9p kh\u00f4ng g\u1ec9 18-0 v\u00e0 18-10 l\u00e0 h\u00e0m l\u01b0\u1ee3ng niken. C\u1ea3 hai \u0111\u1ec1u ch\u1ee9a crom 18% \u0111\u1ec3 ch\u1ed1ng \u0103n m\u00f2n, nh\u01b0ng 18-10 c\u00f3 niken 10%, t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho \u0111\u1ed3 n\u1ea5u n\u01b0\u1edbng v\u00e0 dao k\u00e9o cao c\u1ea5p.<\/p><p>18-0, kh\u00f4ng ch\u1ee9a niken, c\u00f3 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng h\u01a1n v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111\u1ed3 n\u1ea5u \u0103n gi\u00e1 r\u1ebb. M\u1eb7c d\u00f9 kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9 k\u00e9m h\u01a1n, nh\u01b0ng v\u1eabn ho\u1ea1t \u0111\u1ed9ng t\u1ed1t \u0111\u1ed1i v\u1edbi c\u00e1c v\u1eadt d\u1ee5ng nh\u00e0 b\u1ebfp h\u00e0ng ng\u00e0y kh\u00f4ng ti\u1ebfp x\u00fac nhi\u1ec1u v\u1edbi \u0111\u1ed9 \u1ea9m.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 420 c\u00f3 t\u1ed1t h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9 316 kh\u00f4ng?<\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 420 \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi \u0111\u1ed9 c\u1ee9ng v\u00e0 l\u00fd t\u01b0\u1edfng cho c\u00e1c c\u00f4ng c\u1ee5 c\u1eaft, ch\u1eb3ng h\u1ea1n nh\u01b0 dao v\u00e0 d\u1ee5ng c\u1ee5 ph\u1eabu thu\u1eadt. Tuy nhi\u00ean, n\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n th\u1ea5p h\u01a1n so v\u1edbi 316, c\u00f3 ch\u1ee9a molypden v\u00e0 v\u01b0\u1ee3t tr\u1ed9i trong m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n nh\u01b0 n\u01b0\u1edbc m\u1eb7n ho\u1eb7c h\u00f3a ch\u1ea5t.<\/p><p>Trong khi th\u00e9p 420 t\u1ed1t h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n th\u00ec th\u00e9p 316 \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng h\u01a1n trong c\u00e1c m\u00f4i tr\u01b0\u1eddng \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n quan tr\u1ecdng nh\u01b0 ng\u00e0nh h\u00e0ng h\u1ea3i, h\u00f3a ch\u1ea5t v\u00e0 y t\u1ebf.<\/p><p>B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 mu\u1ed1n bi\u1ebft:&nbsp;<\/p><h2 class=\"wp-block-heading\">C\u00f3 4 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 n\u00e0o?<\/h2><p>B\u1ed1n lo\u1ea1i ch\u00ednh l\u00e0 austenitic, ferritic, martensitic v\u00e0 duplex. Austenitic l\u00e0 lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi (v\u00ed d\u1ee5: 304, 316). Ferritic c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u1eeba ph\u1ea3i v\u00e0 c\u00f3 t\u1eeb t\u00ednh. Martensitic c\u1ee9ng v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong dao k\u00e9o. Duplex k\u1ebft h\u1ee3p c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a austenitic v\u00e0 ferritic \u0111\u1ec3 c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu v\u01b0\u1ee3t tr\u1ed9i.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 d\u00f9ng trong th\u1ef1c ph\u1ea9m thu\u1ed9c lo\u1ea1i n\u00e0o?<\/h2><p>Inox 304 v\u00e0 316 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp v\u00e0 \u0111\u1ed3 n\u1ea5u n\u01b0\u1edbng v\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t, d\u1ec5 v\u1ec7 sinh v\u00e0 \u0111\u1ed9 b\u1ec1n.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p 304 SS c\u00f3 ph\u1ea3i l\u00e0 lo\u1ea1i th\u00e9p d\u00f9ng cho t\u00e0u bi\u1ec3n kh\u00f4ng?<\/h2><p>Kh\u00f4ng, th\u00e9p kh\u00f4ng g\u1ec9 304 kh\u00f4ng \u0111\u01b0\u1ee3c coi l\u00e0 lo\u1ea1i th\u00e9p d\u00f9ng cho h\u00e0ng h\u1ea3i. M\u1eb7c d\u00f9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t, nh\u01b0ng n\u00f3 l\u1ea1i thi\u1ebfu molypden gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu v\u1edbi m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc m\u1eb7n. \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng h\u1ea3i, th\u00e9p kh\u00f4ng g\u1ec9 316 \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng h\u01a1n do kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i, \u0111\u1eb7c bi\u1ec7t l\u00e0 ch\u1ed1ng l\u1ea1i s\u1ef1 ti\u1ebfp x\u00fac v\u1edbi clorua v\u00e0 mu\u1ed1i.<\/p><h2 class=\"wp-block-heading\">Lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 n\u00e0o t\u1ed1t nh\u1ea5t?<\/h2><p>C\u1ea5p \u0111\u1ed9 t\u1ed1t nh\u1ea5t ph\u1ee5 thu\u1ed9c v\u00e0o \u1ee9ng d\u1ee5ng. \u0110\u1ed1i v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n m\u1ee5c \u0111\u00edch chung, 304 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i. Tuy nhi\u00ean, 316 \u0111\u01b0\u1ee3c coi l\u00e0 t\u1ed1t nh\u1ea5t trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, \u0111\u1eb7c bi\u1ec7t l\u00e0 m\u00f4i tr\u01b0\u1eddng bi\u1ec3n ho\u1eb7c h\u00f3a ch\u1ea5t, do c\u00f3 th\u00eam molypden, mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n.<\/p><h2 class=\"wp-block-heading\">Lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 n\u00e0o \u0111\u1eaft nh\u1ea5t?<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 904L l\u00e0 m\u1ed9t trong nh\u1eefng lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u1eaft ti\u1ec1n nh\u1ea5t. N\u00f3 ch\u1ee9a h\u00e0m l\u01b0\u1ee3ng crom, niken v\u00e0 molypden cao, khi\u1ebfn n\u00f3 c\u1ef1c k\u1ef3 ch\u1ed1ng \u0103n m\u00f2n, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng axit. V\u1eadt li\u1ec7u cao c\u1ea5p n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p xa x\u1ec9 nh\u01b0 \u0111\u1ed3ng h\u1ed3 cao c\u1ea5p v\u00e0 nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t.<\/p><h2 class=\"wp-block-heading\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9?<\/h2><p>Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 li\u00ean quan \u0111\u1ebfn vi\u1ec7c \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 v\u00e0 chi ph\u00ed. \u0110\u1ed1i v\u1edbi m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng chung, 304, v\u1edbi \u0111\u1ed9 b\u1ec1n cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao, l\u00e0 l\u00fd t\u01b0\u1edfng. \u0110\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t h\u01a1n, h\u00e3y ch\u1ecdn 316, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng h\u00f3a ch\u1ea5t v\u00e0 mu\u1ed1i t\u1ed1t h\u01a1n. D\u00f2ng 400 c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 c\u1ee9ng cao h\u01a1n nh\u01b0ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n k\u00e9m h\u01a1n. H\u00e3y c\u00e2n nh\u1eafc c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng c\u1ee5 th\u1ec3 v\u00e0 c\u00e1c y\u00eau c\u1ea7u c\u01a1 h\u1ecdc, tham kh\u1ea3o c\u00e1c ngu\u1ed3n k\u1ef9 thu\u1eadt v\u00e0 c\u00e2n b\u1eb1ng chi ph\u00ed \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n.<\/p><h2 class=\"wp-block-heading\">Nh\u1eadn \u0111\u01b0\u1ee3c th\u00e9p kh\u00f4ng g\u1ec9 nh\u01b0 mong mu\u1ed1n!<\/h2><p>Ch\u00fang t\u00f4i chuy\u00ean v\u1ec1 th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau. \u0110\u1ec3 t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 th\u00e9p kh\u00f4ng g\u1ec9 ho\u1eb7c c\u00e1c lo\u1ea1i th\u00e9p kh\u00e1c, h\u00e3y xem <a href=\"https:\/\/steelprogroup.com\/vi\/blog\/\">blog c\u1ee7a ch\u00fang t\u00f4i<\/a> ho\u1eb7c li\u00ean h\u1ec7 v\u1edbi m\u1ed9t trong nh\u1eefng chuy\u00ean gia kim lo\u1ea1i c\u1ee7a ch\u00fang t\u00f4i. N\u1ebfu b\u1ea1n mu\u1ed1n l\u00e0m cho d\u1ef1 \u00e1n ti\u1ebfp theo c\u1ee7a m\u00ecnh t\u1ed1t h\u01a1n n\u1eefa, h\u00e3y tho\u1ea3i m\u00e1i <a href=\"https:\/\/steelprogroup.com\/vi\/contact-us\/\">li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i<\/a> \u0111\u1ec3 \u0111\u01b0\u1ee3c b\u00e1o gi\u00e1.<\/p><p><\/p>","protected":false},"excerpt":{"rendered":"<p>Th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u01b0\u1ee3c chia th\u00e0nh n\u0103m h\u1ecd ch\u00ednh: austenitic, ferritic, martensitic, duplex v\u00e0 k\u1ebft t\u1ee7a c\u1ee9ng. C\u00e1c h\u1ecd n\u00e0y c\u00f3 c\u00e1c c\u1ea5p \u0111\u1ed9 kh\u00e1c nhau, [\u2026]<\/p>","protected":false},"author":1,"featured_media":7844,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","rank_math_lock_modified_date":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[112],"tags":[4275],"class_list":["post-7857","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-stainless-steel","tag-featured"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/7857","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/comments?post=7857"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/7857\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/7844"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=7857"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=7857"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=7857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}