{"id":8819,"date":"2024-08-28T05:45:00","date_gmt":"2024-08-27T21:45:00","guid":{"rendered":"https:\/\/app11147.cloudwayssites.com\/?p=8819"},"modified":"2024-11-19T18:18:36","modified_gmt":"2024-11-19T10:18:36","slug":"grade-a2","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-a2\/","title":{"rendered":"Th\u00e9p kh\u00f4ng g\u1ec9 A2: T\u00ednh ch\u1ea5t, \u0111\u1eb7c \u0111i\u1ec3m v\u00e0 so s\u00e1nh"},"content":{"rendered":"<p>Th\u00e9p kh\u00f4ng g\u1ec9 A2 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao v\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i. N\u00f3 \u0111\u00e3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 \u1ed1c v\u00edt \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t v\u00e0 \u0111\u00f2i h\u1ecfi cao.<\/p><p>B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p t\u1ed5ng quan to\u00e0n di\u1ec7n v\u1ec1 th\u00e9p kh\u00f4ng g\u1ec9 A2, bao g\u1ed3m th\u00e0nh ph\u1ea7n, t\u00ednh ch\u1ea5t v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3. B\u00e0i vi\u1ebft c\u0169ng kh\u00e1m ph\u00e1 c\u00e1c c\u1ea5p ph\u1ee5 kh\u00e1c nhau\u2014A2-50, A2-70 v\u00e0 A2-80\u2014v\u00e0 \u0111\u01b0a ra s\u1ef1 so s\u00e1nh gi\u1eefa th\u00e9p kh\u00f4ng g\u1ec9 A2 v\u00e0 c\u00e1c c\u1ea5p th\u00e9p kh\u00f4ng g\u1ec9 kh\u00e1c nh\u01b0 304, A4 v\u00e0 A8.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 A2 l\u00e0 g\u00ec?<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 A2 l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 austenit. N\u00f3 ch\u1ee9a kho\u1ea3ng 65-70% s\u1eaft (Fe), 18-20% crom (Cr) h\u00e0m l\u01b0\u1ee3ng, v\u00e0 8-10,5% niken (Ni), v\u1edbi m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf cacbon, mangan v\u00e0 silic. N\u00f3 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 tuy\u1ec7t. 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 y\u1ebfu t\u1ed1 ki\u1ebfn tr\u00fac, c\u00e1c th\u00e0nh ph\u1ea7n \u00f4 t\u00f4 v\u00e0 c\u00e1c th\u00f9ng ch\u1ee9a h\u00f3a ch\u1ea5t.<\/p><ul class=\"wp-block-list\"><li><strong>Th\u00e9p kh\u00f4ng g\u1ec9 A2 c\u00f3 gi\u1ed1ng v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 304 kh\u00f4ng?<\/strong><\/li><\/ul><p>Kh\u00f4ng gi\u1ed1ng nhau nh\u01b0ng ch\u00fang c\u00f3 li\u00ean quan ch\u1eb7t ch\u1ebd. 304 l\u00e0 ph\u00e2n lo\u1ea1i h\u1ee3p kim qu\u1ed1c t\u1ebf. A2 l\u00e0 k\u00fd hi\u1ec7u ch\u00e2u \u00c2u th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho \u1ed1c v\u00edt b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 th\u01b0\u1eddng d\u00f9ng \u0111\u1ec3 ch\u1ec9 th\u00e9p kh\u00f4ng g\u1ec9 304.&nbsp;<\/p><h3 class=\"wp-block-heading\">T\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 A2<\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Qu\u1ed1c gia\/Khu v\u1ef1c<\/strong><\/td><td><strong>Ti\u00eau chu\u1ea9n\/\u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt<\/strong><\/td><td><strong>L\u1edbp t\u01b0\u01a1ng \u0111\u01b0\u01a1ng<\/strong><\/td><\/tr><tr><td>Trung Qu\u1ed1c<\/td><td>Ti\u00eau chu\u1ea9n GB\/T 1220, GB\/T 20878<\/td><td>06Cr19Ni10 (ho\u1eb7c 304)<\/td><\/tr><tr><td>Hoa K\u1ef3<\/td><td>Ti\u00eau chu\u1ea9n ASTM A276, Ti\u00eau chu\u1ea9n ASTM A240<\/td><td>304<\/td><\/tr><tr><td>Li\u00ean minh ch\u00e2u \u00c2u<\/td><td>EN 10088-2<\/td><td>X5CrNi18-10 (1.4301)<\/td><\/tr><tr><td>\u0110\u1ee9c<\/td><td>Ti\u00eau chu\u1ea9n DIN EN 10088-2<\/td><td>X5CrNi18-10<\/td><\/tr><tr><td>Nh\u1eadt B\u1ea3n<\/td><td>Ti\u00eau chu\u1ea9n JIS G4303<\/td><td>SUS304<\/td><\/tr><tr><td>Anh<\/td><td>Ti\u00eau chu\u1ea9n Anh EN 10088-2<\/td><td>304S15<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">C\u00e1c nh\u00f3m ph\u1ee5 c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 A2<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 A2, \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn r\u1ed9ng r\u00e3i v\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi trong m\u00f4i tr\u01b0\u1eddng kh\u00f4ng ph\u1ea3i bi\u1ec3n, \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh ba c\u1ea5p ph\u1ee5: A2-50, A2-70 v\u00e0 A2-80. C\u00e1c ph\u00e2n lo\u1ea1i n\u00e0y d\u1ef1a tr\u00ean \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a ch\u00fang, khi\u1ebfn ch\u00fang ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau:<\/p><ul class=\"wp-block-list\"><li><strong>A2-50<\/strong>: Th\u00edch h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng linh ho\u1ea1t, \u00edt \u1ee9ng su\u1ea5t v\u00e0 l\u00e0 l\u1ef1a ch\u1ecdn ti\u1ebft ki\u1ec7m chi ph\u00ed nh\u1ea5t.<\/li>\n\n<li><strong>A2-70<\/strong>: L\u00e0 lo\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t, ph\u1ed5 bi\u1ebfn trong c\u00e1c lo\u1ea1i \u1ed1c v\u00edt nh\u01b0 bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c do c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng.<\/li>\n\n<li><strong>A2-80<\/strong>: C\u00f3 \u0111\u1ed9 b\u1ec1n cao nh\u1ea5t v\u1edbi \u0111\u1ed9 d\u1ebbo gi\u1ea3m, khi\u1ebfn n\u00f3 c\u1ef1c k\u1ef3 b\u1ec1n nh\u01b0ng c\u0169ng l\u00e0 l\u1ef1a ch\u1ecdn \u0111\u1eaft nh\u1ea5t.<\/li><\/ul><p>Sau \u0111\u00e2y l\u00e0 b\u1ea3ng so s\u00e1nh c\u00e1c v\u1eadt li\u1ec7u th\u00e9p kh\u00f4ng g\u1ec9 A2-50, A2-70 v\u00e0 A2-80 v\u1ec1 \u0111\u1ed9 b\u1ec1n k\u00e9o, chi ph\u00ed v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh quan tr\u1ecdng kh\u00e1c:<\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>C\u1ee7a c\u1ea3i<\/strong><\/td><td><strong>A2-50<\/strong><\/td><td><strong>A2-70<\/strong><\/td><td><strong>A2-80<\/strong><\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n k\u00e9o<\/td><td>\u2265500 N\/mm\u00b2<\/td><td>\u2265700 N\/mm\u00b2<\/td><td>\u2265800 N\/mm\u00b2<\/td><\/tr><tr><td>0.2% Gi\u1edbi h\u1ea1n ch\u1ea3y<\/td><td>\u2265210 N\/mm\u00b2<\/td><td>\u2265450 N\/mm\u00b2<\/td><td>\u2265600N\/mm\u00b2<\/td><\/tr><tr><td>\u0110\u1ed9 gi\u00e3n d\u00e0i<\/td><td>\u22650,6 ng\u00e0y<\/td><td>\u22650,4 ng\u00e0y<\/td><td>\u22650,3 ng\u00e0y<\/td><\/tr><tr><td>\u1ee8ng d\u1ee5ng<\/td><td>C\u00e1c th\u00e0nh ph\u1ea7n nh\u1eb9 nh\u01b0 ch\u1ecbu \u1ee9ng su\u1ea5t th\u1ea5p)<\/td><td>M\u1ee5c \u0111\u00edch chung nh\u01b0 \u1ed1c v\u00edt<\/td><td>Ch\u1ecbu t\u1ea3i n\u1eb7ng nh\u01b0 ph\u1ee5 t\u00f9ng \u00f4 t\u00f4<\/td><\/tr><tr><td>Tr\u1ecb gi\u00e1<\/td><td>Th\u1ea5p<\/td><td>V\u1eeba ph\u1ea3i<\/td><td>Cao<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">Th\u00e0nh ph\u1ea7n c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 A2<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Y\u1ebfu t\u1ed1<\/strong><\/td><td><strong>Cr<\/strong><\/td><td><strong>Ni<\/strong><\/td><td><strong>C<\/strong><\/td><td><strong>Mn<\/strong><\/td><td><strong>P<\/strong><\/td><td><strong>S<\/strong><\/td><td><strong>Si<\/strong><\/td><td><strong>N<\/strong><\/td><\/tr><tr><td><strong>wt%<\/strong><\/td><td>18.0 &#8211; 20.0<\/td><td>8.0 &#8211; 10.5<\/td><td>\u2264 0,08<\/td><td>\u2264 2.0<\/td><td>\u2264 0,045<\/td><td>\u2264 0,03<\/td><td>\u2264 1.0<\/td><td>\u2264 0,10<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 A2<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>Gi\u00e1 tr\u1ecb<\/strong><\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n k\u00e9o<\/td><td>515 \u2013 740MPa<\/td><\/tr><tr><td>S\u1ee9c ch\u1ecbu l\u1ef1c<\/td><td>205 MPa (ph\u00fat)<\/td><\/tr><tr><td>\u0110\u1ed9 c\u1ee9ng Brinell (HB)<\/td><td>123 \u2013 201 HB<\/td><\/tr><tr><td>\u0110\u1ed9 c\u1ee9ng Rockwell (HRC)<\/td><td>70 \u2013 88HRC<\/td><\/tr><tr><td>\u0110\u1ed9 c\u1ee9ng Vickers (HV)<\/td><td>129 \u2013 200 HV<\/td><\/tr><tr><td>\u0110\u1ed9 gi\u00e3n d\u00e0i<\/td><td>40% (trong 50mm)<\/td><\/tr><tr><td>M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i<\/td><td>193 GPa<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 A2<\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>Gi\u00e1 tr\u1ecb \u0111i\u1ec3n h\u00ecnh (Metric)<\/strong><\/td><td><strong>Gi\u00e1 tr\u1ecb \u0111i\u1ec3n h\u00ecnh (Anh)<\/strong><\/td><\/tr><tr><td>T\u1ec9 tr\u1ecdng<\/td><td>7,75 g\/cm\u00b3<\/td><td>0,280 lb\/in\u00b3<\/td><\/tr><tr><td>\u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/td><td>1.480\u00b0C<\/td><td>2.696\u00b0F<\/td><\/tr><tr><td>\u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/td><td>24,9 W\/m\u00b7K<\/td><td>173 BTU\u00b7in\/gi\u1edd\u00b7ft\u00b2\u00b7\u00b0F<\/td><\/tr><tr><td>S\u1ef1 gi\u00e3n n\u1edf v\u00ec nhi\u1ec7t<\/td><td>10,2 \u00b5m\/m\u00b7\u00b0C<\/td><td>5,7 \u00b5in\/in\u00b7\u00b0F<\/td><\/tr><tr><td>\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n<\/td><td>1,25 x 10\u2076 \u0110\u1ed9 d\u00e0y\/m<\/td><td>2.15% IACS<\/td><\/tr><\/tbody><\/table><\/figure><ul class=\"wp-block-list\"><li><strong>Th\u00e9p kh\u00f4ng g\u1ec9 A2 c\u00f3 t\u1eeb t\u00ednh kh\u00f4ng?<\/strong><\/li><\/ul><p>\u1ede tr\u1ea1ng th\u00e1i \u1ee7, th\u00e9p kh\u00f4ng g\u1ec9 A2 kh\u00f4ng c\u00f3 t\u1eeb t\u00ednh. Nh\u01b0ng n\u00f3 c\u00f3 th\u1ec3 c\u00f3 t\u1eeb t\u00ednh nh\u1eb9 khi gia c\u00f4ng ngu\u1ed9i ho\u1eb7c h\u00e0n. \u0110i\u1ec1u n\u00e0y quan tr\u1ecdng trong c\u00e1c \u1ee9ng d\u1ee5ng m\u00e0 t\u00ednh ch\u1ea5t t\u1eeb t\u00ednh l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1.<\/p><h2 class=\"wp-block-heading\">Hi\u1ec7u su\u1ea5t c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 A2<\/h2><h3 class=\"wp-block-heading\">Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi<\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 A2 ch\u1ee9a h\u00e0m l\u01b0\u1ee3ng crom cao. V\u00ec v\u1eady, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a n\u00f3 r\u1ea5t tuy\u1ec7t v\u1eddi. \u0110i\u1ec1u n\u00e0y l\u00e0m cho n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng m\u00e0 v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac v\u1edbi axit, \u0111\u1ed9 \u1ea9m v\u00e0 ki\u1ec1m. N\u00f3 ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp, th\u00f9ng ch\u1ee9a h\u00f3a ch\u1ea5t v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 ki\u1ebfn tr\u00fac.<\/p><h4 class=\"wp-block-heading\">Gi\u1edbi h\u1ea1n<\/h4><p><strong>Kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng bi\u1ec3n ho\u1eb7c c\u00e1c \u1ee9ng d\u1ee5ng gi\u00e0u clorua<\/strong> do d\u1ec5 b\u1ecb r\u1ed7 v\u00e0 n\u1ee9t do \u0103n m\u00f2n \u1ee9ng su\u1ea5t. \u0110\u1ed1i v\u1edbi nh\u1eefng m\u00f4i tr\u01b0\u1eddng n\u00e0y, n\u00ean s\u1eed d\u1ee5ng th\u00e9p kh\u00f4ng g\u1ec9 c\u1ea5p cao h\u01a1n nh\u01b0 A4 (316).<\/p><h3 class=\"wp-block-heading\">Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t trung b\u00ecnh<\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 A2 c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c l\u00ean \u0111\u1ebfn <strong>870\u00b0C<\/strong> v\u00e0 ti\u1ebfp x\u00fac ng\u1eafn h\u1ea1n l\u00ean \u0111\u1ebfn <strong>925\u00b0C<\/strong>Hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3 l\u00e0m cho n\u00f3 ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng li\u00ean quan \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 v\u1eeba ph\u1ea3i, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u01b0\u1eddng \u1ed1ng c\u00f4ng nghi\u1ec7p, \u0111\u1ed3 n\u1ea5u n\u01b0\u1edbng v\u00e0 b\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t.<\/p><h4 class=\"wp-block-heading\">Gi\u1edbi h\u1ea1n<\/h4><p>Tr\u1ea3i nghi\u1ec7m th\u00e9p kh\u00f4ng g\u1ec9 A2 <strong>k\u1ebft t\u1ee7a cacbua<\/strong> gi\u1eefa <strong>425\u00b0C v\u00e0 870\u00b0C<\/strong>, l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u1edf c\u00e1c khu v\u1ef1c h\u00e0n. S\u1ee9c m\u1ea1nh c\u1ee7a n\u00f3 c\u0169ng gi\u1ea3m \u1edf tr\u00ean <strong>500\u00b0C<\/strong>, h\u1ea1n ch\u1ebf s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu \u1ee9ng su\u1ea5t cao, nhi\u1ec7t \u0111\u1ed9 cao.<\/p><h3 class=\"wp-block-heading\">S\u1ee9c m\u1ea1nh v\u1eeba ph\u1ea3i<\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 A2 c\u00f3 \u0111\u1ed9 b\u1ec1n v\u1eeba ph\u1ea3i, v\u1edbi ph\u1ea1m vi ch\u1ecbu k\u00e9o t\u1eeb 500\u2013750 N\/mm\u00b2, ph\u00f9 h\u1ee3p cho m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng k\u1ebft c\u1ea5u v\u00e0 c\u00f4ng nghi\u1ec7p. N\u00f3 c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo.<\/p><h4 class=\"wp-block-heading\">Gi\u1edbi h\u1ea1n<\/h4><p><strong>N\u00f3 kh\u00f4ng l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 cao ho\u1eb7c ch\u1ecbu nhi\u1ec7t cao<\/strong> do th\u00e0nh ph\u1ea7n h\u1ee3p kim v\u00e0 h\u1ea1n ch\u1ebf v\u1ec1 hi\u1ec7u su\u1ea5t \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/p><h3 class=\"wp-block-heading\">D\u1ec5 d\u00e0ng h\u00ecnh th\u00e0nh<\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 A2 c\u00f3 t\u00ednh gia c\u00f4ng cao, cho ph\u00e9p d\u1ec5 d\u00e0ng \u0111\u1ecbnh h\u00ecnh v\u00e0 t\u1ea1o h\u00ecnh. \u0110i\u1ec1u n\u00e0y l\u00fd t\u01b0\u1edfng cho c\u00e1c quy tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u00f2i h\u1ecfi ph\u1ea3i u\u1ed1n, d\u1eadp ho\u1eb7c \u0111\u1ecbnh h\u00ecnh v\u1eadt li\u1ec7u th\u00e0nh c\u00e1c h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p.<\/p><h3 class=\"wp-block-heading\">S\u1ee9c \u0111\u1ec1 kh\u00e1ng l\u1ea1nh<\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 A2 v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n \u1edf nhi\u1ec7t \u0111\u1ed9 r\u1ea5t th\u1ea5p, ch\u1ecbu \u0111\u01b0\u1ee3c \u0111i\u1ec1u ki\u1ec7n xu\u1ed1ng t\u1edbi -196\u00b0C (-321\u00b0F). N\u00f3 h\u1eefu \u00edch cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f4ng l\u1ea1nh v\u00e0 c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u00e1c \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n cao.<\/p><h3 class=\"wp-block-heading\">Kh\u1ea3 n\u0103ng h\u00e0n tuy\u1ec7t v\u1eddi<\/h3><figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"880\" height=\"550\" src=\"https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/5-11.png\" alt=\"\" class=\"wp-image-18297\" srcset=\"https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/5-11.png 880w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/5-11-300x188.png 300w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/5-11-768x480.png 768w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/5-11-18x12.png 18w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/5-11-600x375.png 600w\" sizes=\"(max-width: 880px) 100vw, 880px\" \/><\/figure><p>Th\u00e9p kh\u00f4ng g\u1ec9 A2 c\u00f3 kh\u1ea3 n\u0103ng h\u00e0n cao do c\u1ea5u tr\u00fac vi m\u00f4 austenit c\u1ee7a n\u00f3. N\u00f3 ph\u00f9 h\u1ee3p v\u1edbi h\u1ea7u h\u1ebft c\u00e1c k\u1ef9 thu\u1eadt h\u00e0n th\u00f4ng th\u01b0\u1eddng, bao g\u1ed3m h\u00e0n TIG, MIG v\u00e0 h\u00e0n \u0111i\u1ec7n tr\u1edf m\u00e0 kh\u00f4ng c\u1ea7n x\u1eed l\u00fd nhi\u1ec7t sau h\u00e0n trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p. <\/p><p>Tuy nhi\u00ean, c\u1ea7n c\u00f3 bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba \u0111\u1ec3 tr\u00e1nh k\u1ebft t\u1ee7a cacbua \u1edf v\u00f9ng ch\u1ecbu \u1ea3nh h\u01b0\u1edfng nhi\u1ec7t (HAZ) \u1edf nhi\u1ec7t \u0111\u1ed9 t\u1eeb 425\u00b0C \u0111\u1ebfn 870\u00b0C.<\/p><h3 class=\"wp-block-heading\">T\u00ednh \u0111a n\u0103ng th\u1ea9m m\u1ef9<\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 A2 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00e1nh b\u00f3ng th\u00e0nh b\u1ec1 m\u1eb7t m\u1ecbn, ph\u1ea3n chi\u1ebfu, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn h\u1ea5p d\u1eabn cho c\u00e1c \u1ee9ng d\u1ee5ng d\u1ec5 th\u1ea5y ho\u1eb7c trang tr\u00ed.<\/p><ul class=\"wp-block-list\"><li><strong>A2 c\u00f3 d\u1ec5 m\u00e0i kh\u00f4ng?<\/strong><\/li><\/ul><p>C\u00f3, th\u00e9p kh\u00f4ng g\u1ec9 A2 t\u01b0\u01a1ng \u0111\u1ed1i d\u1ec5 m\u00e0i v\u00ec \u0111\u1ed9 c\u1ee9ng c\u1ee7a n\u00f3 \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng v\u1edbi c\u1ea5u tr\u00fac h\u1ea1t m\u1ecbn, gi\u00fap \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ea1nh s\u1eafc m\u00e0 kh\u00f4ng g\u1eb7p qu\u00e1 nhi\u1ec1u kh\u00f3 kh\u0103n. A2 c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t con dao t\u1ed1t.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 A2 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/h2><figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"880\" height=\"550\" src=\"https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/6-10.png\" alt=\"\" class=\"wp-image-18298\" srcset=\"https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/6-10.png 880w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/6-10-300x188.png 300w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/6-10-768x480.png 768w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/6-10-18x12.png 18w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/6-10-600x375.png 600w\" sizes=\"(max-width: 880px) 100vw, 880px\" \/><\/figure><p>Th\u00e9p kh\u00f4ng g\u1ec9 A2 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t trong s\u1ea3n xu\u1ea5t \u1ed1c v\u00edt. Sau \u0111\u00e2y l\u00e0 c\u00e1i nh\u00ecn v\u1ec1 c\u00e1c l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng ch\u00ednh c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 A2.<\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\u1ee8ng d\u1ee5ng<\/strong><\/td><td><strong>S\u1eed d\u1ee5ng<\/strong><\/td><td><strong>C\u1ee7a c\u1ea3i<\/strong><\/td><\/tr><tr><td>Th\u1ef1c ph\u1ea9m &amp; \u0110\u1ed3 u\u1ed1ng<\/td><td>Thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp, b\u1ed3n ch\u1ee9a<\/td><td>Ch\u1ed1ng \u0103n m\u00f2n, v\u1ec7 sinh<\/td><\/tr><tr><td>X\u00e2y d\u1ef1ng &amp; Ki\u1ebfn tr\u00fac<\/td><td>M\u1eb7t ti\u1ec1n t\u00f2a nh\u00e0, lan can<\/td><td>B\u1ec1n, th\u1ea9m m\u1ef9<\/td><\/tr><tr><td>\u00d4 t\u00f4<\/td><td>H\u1ec7 th\u1ed1ng x\u1ea3, trang tr\u00ed<\/td><td>Ch\u1ecbu nhi\u1ec7t, ch\u1ed1ng \u0103n m\u00f2n<\/td><\/tr><tr><td>Thi\u1ebft b\u1ecb y t\u1ebf<\/td><td>D\u1ee5ng c\u1ee5, thi\u1ebft b\u1ecb ph\u1eabu thu\u1eadt<\/td><td>Kh\u00f4ng ph\u1ea3n \u1ee9ng, c\u00f3 th\u1ec3 kh\u1eed tr\u00f9ng<\/td><\/tr><tr><td>X\u1eed l\u00fd h\u00f3a h\u1ecdc<\/td><td>B\u1ed3n ch\u1ee9a, \u1ed1ng<\/td><td>Ch\u1ed1ng axit, ki\u1ec1m<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">C\u00e1c d\u1ea1ng s\u1ea3n ph\u1ea9m ph\u1ed5 bi\u1ebfn c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 A2<\/h2><h3 class=\"wp-block-heading\">T\u1ea5m v\u00e0 T\u1ea5m<\/h3><figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"880\" height=\"550\" src=\"https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/4-22.png\" alt=\"\" class=\"wp-image-18299\" srcset=\"https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/4-22.png 880w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/4-22-300x188.png 300w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/4-22-768x480.png 768w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/4-22-18x12.png 18w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/4-22-600x375.png 600w\" sizes=\"(max-width: 880px) 100vw, 880px\" \/><\/figure><p>Th\u00e9p kh\u00f4ng g\u1ec9 A2 th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u00e1n th\u00e0nh t\u1ea5m m\u1ecfng ho\u1eb7c t\u1ea5m d\u00e0y, c\u00f3 nhi\u1ec1u k\u00edch th\u01b0\u1edbc kh\u00e1c nhau. B\u1ec1 m\u1eb7t nh\u1eb5n d\u1ec5 v\u1ec7 sinh v\u00e0 b\u1ea3o d\u01b0\u1ee1ng, l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng v\u1ec7 sinh v\u00e0 c\u1ea5p th\u1ef1c ph\u1ea9m.<\/p><ul class=\"wp-block-list\"><li>S\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp, m\u1eb7t b\u00e0n b\u1ebfp v\u00e0 b\u1ed3n r\u1eeda.<\/li>\n\n<li>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p \u0111\u1ec3 l\u00e0m v\u1ecf b\u1ecdc v\u00e0 t\u1ea5m k\u1ebft c\u1ea5u.<\/li><\/ul><h3 class=\"wp-block-heading\">Thanh v\u00e0 thanh th\u00e9p<\/h3><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"550\" src=\"https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/3-18.png\" alt=\"\" class=\"wp-image-18300\" srcset=\"https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/3-18.png 880w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/3-18-300x188.png 300w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/3-18-768x480.png 768w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/3-18-18x12.png 18w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/3-18-600x375.png 600w\" sizes=\"(max-width: 880px) 100vw, 880px\" \/><\/figure><p>Th\u00e9p kh\u00f4ng g\u1ec9 A2 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t d\u01b0\u1edbi d\u1ea1ng thanh tr\u00f2n, vu\u00f4ng ho\u1eb7c ph\u1eb3ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh x\u00e1c. N\u00f3 cung c\u1ea5p s\u1ef1 k\u1ebft h\u1ee3p t\u1ed1t gi\u1eefa kh\u1ea3 n\u0103ng gia c\u00f4ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, khi\u1ebfn n\u00f3 \u0111\u00e1ng tin c\u1eady cho c\u00f4ng vi\u1ec7c ch\u00ednh x\u00e1c.<\/p><ul class=\"wp-block-list\"><li>\u0110\u01b0\u1ee3c gia c\u00f4ng th\u00e0nh tr\u1ee5c, ch\u1ed1t v\u00e0 b\u00e1nh r\u0103ng trong k\u1ef9 thu\u1eadt c\u01a1 kh\u00ed.<\/li>\n\n<li>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c chi ti\u1ebft trang tr\u00ed nh\u01b0 lan can v\u00e0 tay n\u1eafm.<\/li><\/ul><h3 class=\"wp-block-heading\">\u1ed0ng v\u00e0 \u1ed0ng d\u1eabn<\/h3><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"550\" src=\"https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/2-30.png\" alt=\"\" class=\"wp-image-18301\" srcset=\"https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/2-30.png 880w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/2-30-300x188.png 300w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/2-30-768x480.png 768w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/2-30-18x12.png 18w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/2-30-600x375.png 600w\" sizes=\"(max-width: 880px) 100vw, 880px\" \/><\/figure><p>C\u00e1c d\u1ea1ng \u1ed1ng th\u00e9p kh\u00f4ng g\u1ec9 A2, bao g\u1ed3m \u1ed1ng li\u1ec1n m\u1ea1ch v\u00e0 h\u00e0n, c\u00f3 s\u1eb5n r\u1ed9ng r\u00e3i. T\u00ednh ch\u1ea5t kh\u00f4ng t\u1eeb t\u00ednh v\u00e0 ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a n\u00f3 ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u01b0\u1eddng \u1ed1ng kh\u00f4ng quan tr\u1ecdng.<\/p><ul class=\"wp-block-list\"><li>H\u1ec7 th\u1ed1ng \u1ed1ng n\u01b0\u1edbc trong c\u00e1c t\u00f2a nh\u00e0 d\u00e2n c\u01b0 v\u00e0 th\u01b0\u01a1ng m\u1ea1i.<\/li>\n\n<li>H\u1ec7 th\u1ed1ng \u1ed1ng x\u1ea3 \u00f4 t\u00f4 y\u00eau c\u1ea7u kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u1edf m\u1ee9c trung b\u00ecnh.<\/li><\/ul><h3 class=\"wp-block-heading\">D\u00e2y \u0111i\u1ec7n<\/h3><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"550\" src=\"https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/7-10.png\" alt=\"\" class=\"wp-image-18302\" srcset=\"https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/7-10.png 880w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/7-10-300x188.png 300w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/7-10-768x480.png 768w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/7-10-18x12.png 18w, https:\/\/steelprogroup.com\/wp-content\/uploads\/2024\/08\/7-10-600x375.png 600w\" sizes=\"(max-width: 880px) 100vw, 880px\" \/><\/figure><p>D\u00e2y th\u00e9p kh\u00f4ng g\u1ec9 A2 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t theo nhi\u1ec1u \u0111\u01b0\u1eddng k\u00ednh v\u00e0 h\u00ecnh d\u1ea1ng kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 cu\u1ed9n ho\u1eb7c chi\u1ec1u d\u00e0i th\u1eb3ng. \u0110\u1ed9 b\u1ec1n cao, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 linh ho\u1ea1t tuy\u1ec7t v\u1eddi l\u00e0m cho n\u00f3 l\u00fd t\u01b0\u1edfng cho c\u00e1c m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng n\u0103ng \u0111\u1ed9ng ho\u1eb7c c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/p><ul class=\"wp-block-list\"><li>\u0110\u01b0\u1ee3c t\u1ea1o th\u00e0nh l\u01b0\u1edbi th\u00e9p \u0111\u1ec3 l\u1ecdc, r\u00e0o ch\u1eafn ho\u1eb7c gia c\u1ed1.<\/li>\n\n<li>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng cho l\u00f2 xo trong h\u1ec7 th\u1ed1ng c\u01a1 kh\u00ed ho\u1eb7c thi\u1ebft b\u1ecb ch\u00ednh x\u00e1c.<\/li><\/ul><h2 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa th\u00e9p kh\u00f4ng g\u1ec9 A2, A4 v\u00e0 A8<\/h2><p>Theo ti\u00eau chu\u1ea9n ISO 3506, <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/type\/austenitic\/\">th\u00e9p kh\u00f4ng g\u1ec9 austenit<\/a> th\u00e9p \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i l\u00e0 A1, A2, A3, A4, A5 v\u00e0 A8. Trong s\u1ed1 n\u00e0y, A2, A4 v\u00e0 A8 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i, v\u1edbi <strong>Th\u00e9p kh\u00f4ng g\u1ec9 A2<\/strong> l\u00e0 lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t do t\u00ednh linh ho\u1ea1t tuy\u1ec7t v\u1eddi v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n. <\/p><h3 class=\"wp-block-heading\">A4 so v\u1edbi A2 ho\u1eb7c 316 so v\u1edbi 304<\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 A2 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng h\u00e0ng ng\u00e0y nh\u01b0ng k\u00e9m hi\u1ec7u qu\u1ea3 h\u01a1n \u1edf nh\u1eefng khu v\u1ef1c c\u00f3 h\u00e0m l\u01b0\u1ee3ng clorua cao. Th\u00e9p kh\u00f4ng g\u1ec9 A4 ch\u1ed1ng l\u1ea1i clorua v\u00e0 axit t\u1ed1t h\u01a1n. N\u00f3 \u0111\u1eaft h\u01a1n A2.<\/p><p>A2 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng chung nh\u01b0 thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp v\u00e0 k\u1ebft c\u1ea5u trong nh\u00e0. A4 \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng cho c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t h\u01a1n nh\u01b0 m\u00f4i tr\u01b0\u1eddng bi\u1ec3n v\u00e0 nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t.<\/p><h3 class=\"wp-block-heading\">A8 so v\u1edbi A2<\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 A8 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n tuy\u1ec7t v\u1eddi nh\u01b0ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n th\u1ea5p h\u01a1n so v\u1edbi A2.<\/p><p>Th\u00e9p kh\u00f4ng g\u1ec9 A8 c\u1ef1c k\u1ef3 b\u1ec1n nh\u01b0ng kh\u00f3 gia c\u00f4ng v\u00e0 \u00edt d\u1ebbo h\u01a1n. Th\u00e9p kh\u00f4ng g\u1ec9 A2 d\u1ec5 t\u1ea1o h\u00ecnh v\u00e0 h\u00e0n h\u01a1n.<\/p><p>A2 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp, \u1ed1c v\u00edt v\u00e0 k\u1ebft c\u1ea5u trong nh\u00e0. A8 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu m\u00e0i m\u00f2n cao nh\u01b0 d\u1ee5ng c\u1ee5 c\u1eaft v\u00e0 m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 A2 so v\u1edbi 18-8<\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 A2 v\u00e0 <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-304\/\">th\u00e9p kh\u00f4ng g\u1ec9 18-8<\/a> v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 gi\u1ed1ng nhau v\u1ec1 m\u1eb7t th\u00e0nh ph\u1ea7n. \u201c18-8\u201d l\u00e0 m\u00f4 t\u1ea3 chung cho lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 n\u00e0y, trong khi \u201cA2\u201d l\u00e0 t\u00ean g\u1ecdi c\u1ee5 th\u1ec3 c\u1ee7a Ch\u00e2u \u00c2u, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c lo\u1ea1i \u1ed1c v\u00edt.<\/p><h2 class=\"wp-block-heading\">S\u1ea3n ph\u1ea9m th\u00e9p kh\u00f4ng g\u1ec9 A2 ch\u1ea5t l\u01b0\u1ee3ng cao<\/h2><p>N\u1ebfu b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm c\u00e1c s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng cao, tu\u00e2n th\u1ee7 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u1edbi hi\u1ec7u su\u1ea5t nh\u1ea5t qu\u00e1n cho s\u1ea3n xu\u1ea5t \u1ed1c v\u00edt ho\u1eb7c c\u00e1c s\u1ea3n ph\u1ea9m kh\u00e1c, SteelPro Group cung c\u1ea5p s\u1ea3n ph\u1ea9m \u0111\u1ed3ng nh\u1ea5t v\u00e0 v\u01b0\u1ee3t tr\u1ed9i <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/wire\/304-wire\/\">D\u00e2y th\u00e9p kh\u00f4ng g\u1ec9 A2<\/a>, <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/round-bar\/304-round-bar\/\">thanh<\/a>v\u00e0 nhi\u1ec1u h\u01a1n n\u1eefa, c\u00f9ng v\u1edbi nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd b\u1ec1 m\u1eb7t v\u00e0 t\u00f9y ch\u1ecdn t\u00f9y ch\u1ec9nh.<\/p><p>M\u1ee5c ti\u00eau c\u1ee7a ch\u00fang t\u00f4i l\u00e0 gi\u00fap d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n th\u00e0nh c\u00f4ng \u1edf m\u1ecdi b\u01b0\u1edbc v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng cao c\u1ee7a ch\u00fang t\u00f4i. H\u00e3y tin t\u01b0\u1edfng SteelPro Group \u0111\u1ec3 cung c\u1ea5p s\u1ef1 xu\u1ea5t s\u1eafc m\u00e0 b\u1ea1n c\u1ea7n cho s\u1ea3n xu\u1ea5t \u0111\u00e1ng tin c\u1eady v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>","protected":false},"excerpt":{"rendered":"<p>Th\u00e9p kh\u00f4ng g\u1ec9 A2 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao v\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i. N\u00f3 \u0111\u00e3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho [\u2026]<\/p>","protected":false},"author":1,"featured_media":8807,"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":[4191,112],"tags":[4275],"class_list":["post-8819","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-grades","category-stainless-steel","tag-featured"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/8819","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=8819"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/8819\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/8807"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=8819"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=8819"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=8819"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}