{"id":10958,"date":"2024-10-07T03:10:00","date_gmt":"2024-10-06T19:10:00","guid":{"rendered":"https:\/\/app11147.cloudwayssites.com\/?p=10958"},"modified":"2025-02-17T19:08:17","modified_gmt":"2025-02-17T11:08:17","slug":"grade-202","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-202\/","title":{"rendered":"Th\u00e9p kh\u00f4ng g\u1ec9 202: Th\u00e0nh ph\u1ea7n, T\u00ednh ch\u1ea5t, \u1ee8ng d\u1ee5ng, Quy tr\u00ecnh v\u00e0 Th\u00eam th\u00f4ng tin"},"content":{"rendered":"<p>Ch\u00fang t\u00f4i s\u1ebd gi\u1edbi thi\u1ec7u cho b\u1ea1n v\u1ec1 th\u00e0nh ph\u1ea7n, t\u00ednh ch\u1ea5t ch\u00ednh, h\u00ecnh th\u1ee9c, ph\u01b0\u01a1ng ph\u00e1p gia c\u00f4ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 202, c\u0169ng nh\u01b0 c\u00e1ch so s\u00e1nh v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p nh\u01b0 304, 316, v.v. Cho d\u00f9 b\u1ea1n \u0111ang l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u cho m\u1ed9t d\u1ef1 \u00e1n c\u00f4ng nghi\u1ec7p hay s\u1eed d\u1ee5ng h\u00e0ng ng\u00e0y, vi\u1ec7c hi\u1ec3u bi\u1ebft v\u1ec1 th\u00e9p kh\u00f4ng g\u1ec9 202 s\u1ebd gi\u00fap b\u1ea1n \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 202 l\u00e0 g\u00ec?<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 202 l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 austenit thay th\u1ebf m\u1ed9t ph\u1ea7n niken b\u1eb1ng h\u00e0m l\u01b0\u1ee3ng mangan cao v\u00e0 l\u00e0 gi\u1ea3i ph\u00e1p thay th\u1ebf ti\u1ebft ki\u1ec7m cho d\u00f2ng 300. Th\u00e9p n\u00e0y v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t trong khi v\u1eabn gi\u1ea3m chi ph\u00ed v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c t\u00ecnh hu\u1ed1ng c\u00f4ng nghi\u1ec7p v\u00e0 gia d\u1ee5ng kh\u00f4ng ti\u1ebfp x\u00fac v\u1edbi m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n cao, ch\u1eb3ng h\u1ea1n nh\u01b0 thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp, ph\u1ee5 t\u00f9ng \u00f4 t\u00f4 v\u00e0 k\u1ebft c\u1ea5u t\u00f2a nh\u00e0.<\/p><h3 class=\"wp-block-heading\">202 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng<\/h3><p>C\u00f3 m\u1ed9t s\u1ed1 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 202 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn tr\u00ean to\u00e0n c\u1ea7u.&nbsp;<\/p><ul class=\"wp-block-list\"><li>UNS: S20200<\/li>\n\n<li>Ti\u1ebfng Vi\u1ec7t: X12CrMnNiN18-9-5 (1.4373)<\/li>\n\n<li>Ti\u00eau chu\u1ea9n: SUS 202<\/li><\/ul><h3 class=\"wp-block-heading\">Ti\u00eau chu\u1ea9n th\u00e9p kh\u00f4ng g\u1ec9 202<\/h3><p>Ti\u00eau chu\u1ea9n ASTM A240, Ti\u00eau chu\u1ea9n ASTM A666<\/p><h2 class=\"wp-block-heading\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 202<\/h2><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Y\u1ebfu t\u1ed1<\/td><td>Ph\u1ea1m vi th\u00e0nh ph\u1ea7n<\/td><\/tr><tr><td>Cacbon (C)<\/td><td>\u2264 0,15%<\/td><\/tr><tr><td>Mangan (Mn)<\/td><td>7.50% &#8211; 10.00%<\/td><\/tr><tr><td>Silic (Si)<\/td><td>\u2264 1,00%<\/td><\/tr><tr><td>Crom (Cr)<\/td><td>17.00% &#8211; 19.00%<\/td><\/tr><tr><td>Niken (Ni)<\/td><td>4.00% &#8211; 6.00%<\/td><\/tr><tr><td>Nit\u01a1 (N)<\/td><td>\u2264 0,25%<\/td><\/tr><tr><td>L\u01b0u hu\u1ef3nh (S)<\/td><td>\u2264 0,030%<\/td><\/tr><tr><td>Ph\u1ed1t pho (P)<\/td><td>\u2264 0,060%<\/td><\/tr><\/tbody><\/table><\/figure><ul class=\"wp-block-list\"><li>Crom (Cr): G\u00f3p ph\u1ea7n v\u00e0o kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh oxy h\u00f3a c\u1ee7a h\u1ee3p kim.<\/li><\/ul><ul class=\"wp-block-list\"><li>Niken (Ni): Cung c\u1ea5p \u0111\u1ed9 d\u1ebbo dai v\u00e0 c\u1ea3i thi\u1ec7n c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc, m\u1eb7c d\u00f9 v\u1edbi s\u1ed1 l\u01b0\u1ee3ng \u00edt h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i kh\u00e1c.<\/li><\/ul><ul class=\"wp-block-list\"><li>Mangan (Mn): Thay th\u1ebf m\u1ed9t ph\u1ea7n h\u00e0m l\u01b0\u1ee3ng niken, t\u0103ng \u0111\u1ed9 b\u1ec1n v\u00e0 c\u1ea3i thi\u1ec7n t\u00ednh ch\u1ea5t l\u00e0m c\u1ee9ng.<\/li><\/ul><ul class=\"wp-block-list\"><li>Cacbon (C): C\u00f3 h\u00e0m l\u01b0\u1ee3ng nh\u1ecf, cacbon l\u00e0m t\u0103ng \u0111\u1ed9 b\u1ec1n nh\u01b0ng c\u00f3 th\u1ec3 l\u00e0m th\u00e9p gi\u00f2n h\u01a1n n\u1ebfu h\u00e0m l\u01b0\u1ee3ng qu\u00e1 cao.<\/li><\/ul><h2 class=\"wp-block-heading\">202 T\u00ednh ch\u1ea5t c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9<\/h2><h3 class=\"wp-block-heading\">C\u00e1c t\u00ednh n\u0103ng ch\u00ednh<\/h3><p><strong>Hi\u1ec7u qu\u1ea3 v\u1ec1 m\u1eb7t chi ph\u00ed: <\/strong>Do h\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p h\u01a1n, th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p truy\u1ec1n th\u1ed1ng nh\u01b0 304 v\u00e0 316. \u0110i\u1ec1u n\u00e0y khi\u1ebfn th\u00e9p kh\u00f4ng g\u1ec9 202 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho c\u00e1c d\u1ef1 \u00e1n c\u00f3 ng\u00e2n s\u00e1ch eo h\u1eb9p v\u00e0 kh\u00f4ng y\u00eau c\u1ea7u \u0111\u1eb7c t\u00ednh hi\u1ec7u su\u1ea5t cao c\u1ee7a c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 kh\u00e1c.<\/p><p><strong>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t:<\/strong> M\u1eb7c d\u00f9 kh\u00f4ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t nh\u01b0 304 ho\u1eb7c 316, th\u00e9p kh\u00f4ng g\u1ec9 202 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng nh\u1eb9. Kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a v\u00e0 axit nh\u1eb9 c\u1ee7a n\u00f3 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c h\u1ea7u h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng trong gia \u0111\u00ecnh v\u00e0 c\u00f4ng nghi\u1ec7p nh\u1eb9.<\/p><p><strong>\u0110\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 c\u1ee9ng cao: <\/strong>Th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc t\u1ed1t v\u00e0 v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 d\u1ebbo dai ngay c\u1ea3 \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng k\u1ebft c\u1ea5u.<\/p><p><strong>Kh\u1ea3 n\u0103ng \u0111\u1ecbnh h\u00ecnh tuy\u1ec7t v\u1eddi: <\/strong>SS 202 c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng \u0111\u1ecbnh h\u00ecnh th\u00e0nh nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau nh\u01b0 t\u1ea5m, cu\u1ed9n v\u00e0 \u1ed1ng, \u0111\u1ed3ng th\u1eddi v\u1eabn duy tr\u00ec \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n ch\u1eafc v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u1edbi m\u1ee9c \u0111\u1ed9 th\u1ecfa hi\u1ec7p t\u1ed1i thi\u1ec3u.<\/p><p><strong>Kh\u1ea3 n\u0103ng h\u00e0n:<\/strong> Th\u00e9p kh\u00f4ng g\u1ec9 202 t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p h\u00e0n ti\u00eau chu\u1ea9n nh\u01b0 quy tr\u00ecnh TIG v\u00e0 MIG. Tuy nhi\u00ean, c\u1ea7n ph\u1ea3i th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba trong qu\u00e1 tr\u00ecnh h\u00e0n \u0111\u1ec3 ng\u0103n ng\u1eeba k\u1ebft t\u1ee7a cacbua, c\u00f3 th\u1ec3 g\u00e2y ra \u0103n m\u00f2n gi\u1eefa c\u00e1c h\u1ea1t v\u00e0 l\u00e0m gi\u1ea3m t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a v\u1eadt li\u1ec7u.<\/p><h3 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 202<\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>T\u00e0i s\u1ea3n<\/td><td>Gi\u00e1 tr\u1ecb<\/td><\/tr><tr><td>T\u1ec9 tr\u1ecdng<\/td><td>7,80 g\/cm\u00b3<\/td><\/tr><tr><td>\u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/td><td>1400 \u2013 1450\u00b0C<\/td><\/tr><tr><td>H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t<\/td><td>17,0 x 10\u207b\u2076 \/K<\/td><\/tr><tr><td>\u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/td><td>15 W\/m\u00b7K<\/td><\/tr><tr><td>Nhi\u1ec7t dung ri\u00eang<\/td><td>500 J\/kg\u00b7K<\/td><\/tr><tr><td>\u0110i\u1ec7n tr\u1edf su\u1ea5t<\/td><td>720 n\u03a9\u00b7m<\/td><\/tr><tr><td>T\u00ednh ch\u1ea5t t\u1eeb t\u00ednh<\/td><td>Kh\u00f4ng t\u1eeb t\u00ednh (\u1ee7)<\/td><\/tr><tr><td>M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i (M\u00f4 \u0111un Young)<\/td><td>200 GPa<\/td><\/tr><tr><td>T\u1ef7 s\u1ed1 Poisson<\/td><td>0.27 &#8211; 0.30<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 202<\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>T\u00e0i s\u1ea3n<\/td><td>Gi\u00e1 tr\u1ecb<\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n k\u00e9o<\/td><td>515MPa<\/td><\/tr><tr><td>Gi\u1edbi h\u1ea1n ch\u1ea3y (\u0110\u1ed9 l\u1ec7ch 0,2%)<\/td><td>275MPa<\/td><\/tr><tr><td>\u0110\u1ed9 gi\u00e3n d\u00e0i khi \u0111\u1ee9t<\/td><td>40%<\/td><\/tr><tr><td>\u0110\u1ed9 c\u1ee9ng (Rockwell B)<\/td><td>100 HRB (t\u1ed1i \u0111a)<\/td><\/tr><tr><td>S\u1ee9c m\u1ea1nh t\u00e1c \u0111\u1ed9ng<\/td><td>60 \u2013 80J<\/td><\/tr><tr><td>Ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 t\u00e1c \u0111\u1ed9ng<\/td><td>-196\u00b0C \u0111\u1ebfn 25\u00b0C<\/td><\/tr><tr><td>T\u1ef7 l\u1ec7 gi\u1edbi h\u1ea1n ch\u1ea3y\/\u0111\u1ed9 b\u1ec1n k\u00e9o<\/td><td>0.53<\/td><\/tr><tr><td>M\u00f4 \u0111un c\u1eaft<\/td><td>77 GPa<\/td><\/tr><tr><td>M\u00f4 \u0111un k\u00e9o<\/td><td>207 GPa<\/td><\/tr><tr><td>T\u1ef7 l\u1ec7 l\u00e0m vi\u1ec7c c\u1ee9ng<\/td><td>0.42<\/td><\/tr><tr><td>Gi\u1edbi h\u1ea1n \u0111\u00e0n h\u1ed3i<\/td><td>345MPa<\/td><\/tr><tr><td>N\u0103ng l\u01b0\u1ee3ng t\u00e1c \u0111\u1ed9ng Charpy<\/td><td>&gt; 100 J<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">C\u00e1c d\u1ea1ng th\u00e9p kh\u00f4ng g\u1ec9 202<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau, cho ph\u00e9p nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 nh\u00e0 thi\u1ebft k\u1ebf l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u t\u1ed1t nh\u1ea5t cho \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a h\u1ecd.&nbsp;<\/p><p><strong>T\u1ea5m tr\u1ea3i gi\u01b0\u1eddng:<\/strong> Nh\u1eefng m\u1ea3nh m\u1ecfng, ph\u1eb3ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho nhi\u1ec1u m\u1ee5c \u0111\u00edch kh\u00e1c nhau, bao g\u1ed3m x\u00e2y d\u1ef1ng, \u0111\u1ed3 gia d\u1ee5ng v\u00e0 thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp.<\/p><p><strong>\u0110\u0129a:<\/strong> D\u00e0y h\u01a1n v\u00e0 b\u1ec1n h\u01a1n t\u1ea5m, t\u1ea5m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu t\u1ea3i n\u1eb7ng nh\u01b0 linh ki\u1ec7n k\u1ebft c\u1ea5u v\u00e0 ph\u1ee5 t\u00f9ng \u00f4 t\u00f4.<\/p><p><strong>Cu\u1ed9n d\u00e2y:<\/strong> D\u1ea3i th\u00e9p kh\u00f4ng g\u1ec9 c\u00e1n m\u1ecfng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong quy tr\u00ecnh s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m nh\u01b0 \u1ed1ng, b\u1ed3n r\u1eeda nh\u00e0 b\u1ebfp v\u00e0 \u1ed1ng.<\/p><p><strong>\u1ed0ng v\u00e0 \u1ed0ng:<\/strong> C\u00f3 s\u1eb5n \u1edf d\u1ea1ng h\u00e0n v\u00e0 d\u1ea1ng li\u1ec1n m\u1ea1ch, \u1ed1ng v\u00e0 \u1ed1ng th\u00e9p kh\u00f4ng g\u1ec9 202 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 v\u1eadn chuy\u1ec3n ch\u1ea5t l\u1ecfng trong m\u00f4i tr\u01b0\u1eddng kh\u00f4ng \u0103n m\u00f2n.<\/p><p><strong>Thanh v\u00e0 que:<\/strong> Thanh tr\u00f2n, vu\u00f4ng, ph\u1eb3ng ho\u1eb7c l\u1ee5c gi\u00e1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng k\u1ebft c\u1ea5u ho\u1eb7c \u0111\u1ec3 gia c\u00f4ng c\u00e1c b\u1ed9 ph\u1eadn.<\/p><p><strong>D\u00e2y \u0111i\u1ec7n:<\/strong> \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau, bao g\u1ed3m l\u00f2 xo, \u1ed1c v\u00edt v\u00e0 l\u01b0\u1edbi th\u00e9p.<\/p><p><strong>Trang s\u1ee9c:<\/strong> Th\u00e9p kh\u00f4ng g\u1ec9 202 c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t \u0111\u1ed3 trang s\u1ee9c nh\u1edd kh\u1ea3 n\u0103ng gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u00f3ng v\u00e0 ch\u1ed1ng x\u1ec9n m\u00e0u.<\/p><h2 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 202<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 202 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong m\u1ecdi l\u0129nh v\u1ef1c c\u1ee7a cu\u1ed9c s\u1ed1ng v\u00ec gi\u00e1 th\u00e0nh th\u1ea5p v\u00e0 hi\u1ec7u su\u1ea5t tuy\u1ec7t v\u1eddi.<\/p><p><strong>S\u1ef1 thi c\u00f4ng:<\/strong> Th\u00e9p kh\u00f4ng g\u1ec9 202 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c th\u00e0nh ph\u1ea7n k\u1ebft c\u1ea5u, trang tr\u00ed ki\u1ebfn tr\u00fac v\u00e0 lan can. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong c\u1ea3 \u1ee9ng d\u1ee5ng x\u00e2y d\u1ef1ng n\u1ed9i th\u1ea5t v\u00e0 ngo\u1ea1i th\u1ea5t.<\/p><p><strong>\u00d4 t\u00f4:<\/strong> Ng\u00e0nh c\u00f4ng nghi\u1ec7p \u00f4 t\u00f4 s\u1eed d\u1ee5ng th\u00e9p kh\u00f4ng g\u1ec9 202 cho c\u00e1c b\u1ed9 ph\u1eadn nh\u01b0 h\u1ec7 th\u1ed1ng \u1ed1ng x\u1ea3, \u0111\u01b0\u1eddng vi\u1ec1n trang tr\u00ed v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn th\u00e2n xe, trong \u0111\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 kh\u1ea3 n\u0103ng t\u1ea1o h\u00ecnh c\u1ee7a th\u00e9p n\u00e0y mang l\u1ea1i gi\u00e1 tr\u1ecb l\u1edbn.<\/p><p><strong>\u0110\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp:<\/strong> T\u1eeb b\u1ed3n r\u1eeda \u0111\u1ebfn \u0111\u1ed3 n\u1ea5u n\u01b0\u1edbng, th\u00e9p kh\u00f4ng g\u1ec9 202 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nh\u00e0 b\u1ebfp v\u00ec n\u00f3 ch\u1ed1ng \u0103n m\u00f2n v\u00e0 d\u1ec5 v\u1ec7 sinh.<\/p><p><strong>\u0110\u01b0\u1eddng s\u1eaft: <\/strong>Trong l\u0129nh v\u1ef1c v\u1eadn t\u1ea3i, th\u00e9p kh\u00f4ng g\u1ec9 202 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t toa xe l\u1eeda, xe k\u00e9o v\u00e0 v\u1ecf b\u1ecdc t\u00e0u h\u1ecfa.<\/p><p><strong>N\u1ed9i th\u1ea5t:<\/strong> H\u1ee3p kim n\u00e0y \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng trong s\u1ea3n xu\u1ea5t khung \u0111\u1ed3 n\u1ed9i th\u1ea5t, gi\u00e1 \u0111\u1ee1 v\u00e0 c\u00e1c chi ti\u1ebft trang tr\u00ed, v\u00ec s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa \u0111\u1ed9 b\u1ec1n, t\u00ednh th\u1ea9m m\u1ef9 v\u00e0 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn t\u1ed1t.<\/p><p><strong>C\u00f4ng nghi\u1ec7p:<\/strong> Th\u00e9p kh\u00f4ng g\u1ec9 202 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p kh\u00e1c nhau nh\u01b0 b\u1ed3n ch\u1ee9a, van v\u00e0 thi\u1ebft b\u1ecb ti\u1ebfp x\u00fac v\u1edbi m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n nh\u1eb9.<\/p><h2 class=\"wp-block-heading\">\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 202<\/h2><h3 class=\"wp-block-heading\">Thu\u1eadn l\u1ee3i<\/h3><ol class=\"wp-block-list\"><li>Ti\u1ebft ki\u1ec7m chi ph\u00ed: Do h\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p n\u00ean th\u00e9p kh\u00f4ng g\u1ec9 202 l\u00e0 m\u1ed9t trong nh\u1eefng lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 ti\u1ebft ki\u1ec7m chi ph\u00ed nh\u1ea5t.<\/li>\n\n<li>\u0110\u1ed9 b\u1ec1n t\u1ed1t: C\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 d\u1ebbo dai t\u1ed1t cho nhi\u1ec1u \u1ee9ng d\u1ee5ng k\u1ebft c\u1ea5u.<\/li>\n\n<li>Kh\u1ea3 n\u0103ng h\u00e0n: Th\u00e9p kh\u00f4ng g\u1ec9 202 t\u01b0\u01a1ng \u0111\u1ed1i d\u1ec5 h\u00e0n b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u00f4ng th\u01b0\u1eddng nh\u01b0 TIG, MIG v\u00e0 MMA.<\/li>\n\n<li>Kh\u1ea3 n\u0103ng t\u1ea1o h\u00ecnh: Cho ph\u00e9p d\u1ec5 d\u00e0ng t\u1ea1o ra nhi\u1ec1u h\u00ecnh d\u1ea1ng v\u00e0 s\u1ea3n ph\u1ea9m kh\u00e1c nhau nh\u01b0 t\u1ea5m, \u1ed1ng v\u00e0 cu\u1ed9n.<\/li><\/ol><h3 class=\"wp-block-heading\">Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/h3><ol class=\"wp-block-list\"><li>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n th\u1ea5p h\u01a1n: M\u1eb7c d\u00f9 th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng nh\u1eb9, nh\u01b0ng n\u00f3 kh\u00f4ng b\u1ec1n b\u1eb1ng c\u00e1c h\u1ee3p kim cao c\u1ea5p h\u01a1n nh\u01b0 304 ho\u1eb7c 316, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng h\u00e0ng h\u1ea3i ho\u1eb7c c\u00f4ng nghi\u1ec7p.<\/li>\n\n<li>D\u1ec5 b\u1ecb g\u1ec9 s\u00e9t: \u1ede nh\u1eefng v\u00f9ng ven bi\u1ec3n ho\u1eb7c m\u00f4i tr\u01b0\u1eddng \u00f4 nhi\u1ec5m n\u1eb7ng, th\u00e9p kh\u00f4ng g\u1ec9 202 d\u1ec5 b\u1ecb g\u1ec9 s\u00e9t h\u01a1n.<\/li>\n\n<li>Kh\u00f4ng ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao: Th\u00e9p kh\u00f4ng g\u1ec9 202 kh\u00f4ng l\u00fd t\u01b0\u1edfng \u0111\u1ec3 s\u1eed d\u1ee5ng l\u00e2u d\u00e0i trong m\u00f4i tr\u01b0\u1eddng c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao v\u00ec kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t c\u1ee7a lo\u1ea1i th\u00e9p n\u00e0y th\u1ea5p h\u01a1n c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 kh\u00e1c.<\/li><\/ol><h2 class=\"wp-block-heading\">Ph\u01b0\u01a1ng ph\u00e1p ch\u1ebf bi\u1ebfn cho th\u00e9p kh\u00f4ng g\u1ec9 202<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 th\u1ec3 tr\u1ea3i qua m\u1ed9t s\u1ed1 k\u1ef9 thu\u1eadt x\u1eed l\u00fd, bao g\u1ed3m t\u1ea1o h\u00ecnh, h\u00e0n, r\u00e8n, l\u00e0m c\u1ee9ng, x\u1eed l\u00fd nhi\u1ec7t v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ea3m b\u1ea3o h\u1ee3p kim ho\u1ea1t \u0111\u1ed9ng t\u1ed1i \u01b0u trong \u1ee9ng d\u1ee5ng d\u1ef1 \u0111\u1ecbnh c\u1ee7a n\u00f3.<\/p><h3 class=\"wp-block-heading\"><strong>H\u00ecnh th\u00e0nh<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>T\u1ea1o h\u00ecnh l\u1ea1nh<\/strong>: Th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 \u0111\u1ed9 d\u1ebbo t\u1ed1t v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ea1o h\u00ecnh ngu\u1ed9i nh\u01b0 u\u1ed1n, d\u1eadp v\u00e0 k\u00e9o. T\u1ea1o h\u00ecnh ngu\u1ed9i c\u00f3 th\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 v\u00e0 \u0111\u1ed9 c\u1ee9ng th\u00f4ng qua qu\u00e1 tr\u00ecnh t\u00f4i luy\u1ec7n.<\/li>\n\n<li><strong>V\u1ebd s\u00e2u<\/strong>: 202 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c \u1ee9ng d\u1ee5ng k\u00e9o s\u00e2u, nh\u01b0ng c\u00f3 th\u1ec3 c\u1ea7n \u1ee7 trung gian \u0111\u1ec3 kh\u00f4i ph\u1ee5c \u0111\u1ed9 d\u1ebbo sau khi bi\u1ebfn d\u1ea1ng \u0111\u00e1ng k\u1ec3.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>H\u00e0n<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>Kh\u1ea3 n\u0103ng h\u00e0n<\/strong>: Th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u00e0n b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ti\u00eau chu\u1ea9n nh\u01b0 <strong>TIG<\/strong>, <strong>MIG<\/strong>, <strong>h\u00e0n \u0111i\u1ec7n tr\u1edf<\/strong>, V\u00e0 <strong>h\u00e0n h\u1ed3 quang kim lo\u1ea1i \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7<\/strong> (SMAW). Tuy nhi\u00ean, do h\u00e0m l\u01b0\u1ee3ng mangan cao h\u01a1n n\u00ean n\u00f3 d\u1ec5 b\u1ecb n\u1ee9t n\u00f3ng h\u01a1n 304.<\/li>\n\n<li><strong>C\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba<\/strong>: Th\u00f4ng th\u01b0\u1eddng, qu\u00e1 tr\u00ecnh \u1ee7 sau h\u00e0n kh\u00f4ng b\u1eaft bu\u1ed9c, nh\u01b0ng trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi c\u00e1c ph\u1ea7n d\u00e0y h\u01a1n, c\u00f3 th\u1ec3 c\u1ea7n x\u1eed l\u00fd sau h\u00e0n \u0111\u1ec3 ph\u1ee5c h\u1ed3i kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>C\u1eaft<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>C\u1eaft Laser<\/strong>:C\u1eaft laser l\u00e0 ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7u qu\u1ea3 cao \u0111\u1ed1i v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 202, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi c\u00e1c t\u1ea5m m\u1ecfng, mang l\u1ea1i \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 c\u00e1c c\u1ea1nh s\u1ea1ch.<\/li>\n\n<li><strong>C\u1eaft Plasma<\/strong>: Th\u00edch h\u1ee3p \u0111\u1ec3 c\u1eaft c\u00e1c ph\u1ea7n d\u00e0y h\u01a1n c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 202. C\u1ea7n c\u1ea9n th\u1eadn \u0111\u1ec3 tr\u00e1nh c\u00e1c v\u00f9ng ch\u1ecbu \u1ea3nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t, c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n.<\/li>\n\n<li><strong>C\u1eaft c\u01a1 kh\u00ed<\/strong>: Th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1eaft b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p c\u1eaft v\u00e0 c\u01b0a. C\u1eaft b\u1eb1ng tia n\u01b0\u1edbc m\u00e0i m\u00f2n c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng nhi\u1ec7t.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>L\u00e0m vi\u1ec7c n\u00f3ng<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>R\u00e8n<\/strong>: Th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c r\u00e8n \u1edf nhi\u1ec7t \u0111\u1ed9 t\u1eeb <strong>1149\u00b0C v\u00e0 1260\u00b0C (2100\u00b0F \u0111\u1ebfn 2300\u00b0F)<\/strong>. Sau khi r\u00e8n, c\u1ea7n ph\u1ea3i \u1ee7 \u0111\u1ec3 gi\u1ea3m \u1ee9ng su\u1ea5t v\u00e0 duy tr\u00ec \u0111\u1ed9 d\u1ebbo.<\/li>\n\n<li><strong>C\u00e1n n\u00f3ng<\/strong>:C\u00e1n n\u00f3ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ecbnh h\u00ecnh v\u1eadt li\u1ec7u, th\u01b0\u1eddng sau \u0111\u00f3 l\u00e0 \u1ee7 \u0111\u1ec3 l\u00e0m m\u1ec1m v\u1eadt li\u1ec7u v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n.<\/li>\n\n<li><strong>U\u1ed1n n\u00f3ng<\/strong>: Th\u00edch h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng u\u1ed1n n\u00f3ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u00e1c h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>L\u00e0m vi\u1ec7c l\u1ea1nh<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>C\u00e1n ngu\u1ed9i<\/strong>: Th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 th\u1ec3 tr\u1ea3i qua qu\u00e1 tr\u00ecnh c\u00e1n ngu\u1ed9i \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 th\u00f4ng qua <strong>l\u00e0m vi\u1ec7c c\u1ee9ng<\/strong>, c\u1ea3i thi\u1ec7n b\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n v\u00e0 t\u1ea1o ra c\u00e1c ph\u1ea7n m\u1ecfng h\u01a1n.<\/li>\n\n<li><strong>U\u1ed1n l\u1ea1nh<\/strong>: U\u1ed1n ngu\u1ed9i c\u00f3 hi\u1ec7u qu\u1ea3 do \u0111\u1ed9 d\u1ebbo t\u1ed1t, nh\u01b0ng v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 c\u1ee9ng l\u1ea1i trong qu\u00e1 tr\u00ecnh n\u00e0y. C\u00f3 th\u1ec3 c\u1ea7n \u1ee7 trung gian n\u1ebfu u\u1ed1n nhi\u1ec1u.<\/li>\n\n<li><strong>V\u1ebd l\u1ea1nh<\/strong>: K\u00e9o d\u00e2y v\u00e0 \u1ed1ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee5 th\u1ec3. K\u00e9o ngu\u1ed9i l\u00e0m t\u0103ng \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a v\u1eadt li\u1ec7u.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>X\u1eed l\u00fd nhi\u1ec7t<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>L\u00e0m c\u1ee9ng<\/strong>: Gi\u1ed1ng nh\u01b0 c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 austenit kh\u00e1c, <strong>Th\u00e9p kh\u00f4ng g\u1ec9 202 kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng b\u1eb1ng c\u00e1ch x\u1eed l\u00fd nhi\u1ec7t<\/strong> nh\u01b0ng ch\u1ec9 th\u00f4ng qua ph\u01b0\u01a1ng ph\u00e1p gia c\u00f4ng ngu\u1ed9i.<\/li>\n\n<li><strong>\u1ee6<\/strong>: Sau khi gia c\u00f4ng n\u00f3ng ho\u1eb7c gia c\u00f4ng ngu\u1ed9i nhi\u1ec1u, c\u1ea7n ph\u1ea3i \u1ee7 \u1edf <strong>1010\u00b0C \u0111\u1ebfn 1093\u00b0C (1850\u00b0F \u0111\u1ebfn 2000\u00b0F)<\/strong> sau \u0111\u00f3 l\u00e0m ngu\u1ed9i nhanh \u0111\u1ec3 gi\u1ea3m \u1ee9ng su\u1ea5t b\u00ean trong v\u00e0 ph\u1ee5c h\u1ed3i \u0111\u1ed9 d\u1ebbo.<\/li>\n\n<li><strong>Gi\u1ea3m c\u0103ng th\u1eb3ng<\/strong>:C\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n x\u1eed l\u00fd gi\u1ea3m \u1ee9ng su\u1ea5t \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p sau khi l\u00e0m vi\u1ec7c ngu\u1ed9i \u0111\u1ec3 gi\u1ea3m \u1ee9ng su\u1ea5t d\u01b0 m\u00e0 kh\u00f4ng l\u00e0m thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc.<\/li><\/ul><h3 class=\"wp-block-heading\">X\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/h3><p>C\u00f3 th\u1ec3 \u00e1p d\u1ee5ng nhi\u1ec1u lo\u1ea1i ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t kh\u00e1c nhau cho th\u00e9p kh\u00f4ng g\u1ec9 202, t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1eb7c \u0111i\u1ec3m th\u1ea9m m\u1ef9 v\u00e0 ch\u1ee9c n\u0103ng mong mu\u1ed1n. M\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd b\u1ec1 m\u1eb7t ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p><ul class=\"wp-block-list\"><li><strong>\u0110\u00e1nh b\u00f3ng:<\/strong> \u0110\u1ec3 t\u1ea1o ra b\u1ec1 m\u1eb7t m\u1ecbn, s\u00e1ng b\u00f3ng.<\/li>\n\n<li><strong>\u0110\u00e1nh r\u0103ng: <\/strong>\u0110\u1ec3 c\u00f3 l\u1edbp n\u1ec1n l\u00ec h\u01a1n.<\/li>\n\n<li><strong>\u0110\u00e1nh b\u00f3ng \u0111i\u1ec7n h\u00f3a:<\/strong> \u0110\u1ec3 t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 t\u1ea1o ra l\u1edbp ho\u00e0n thi\u1ec7n ph\u1ea3n chi\u1ebfu.<\/li>\n\n<li><strong>Ho\u00e0n thi\u1ec7n b\u1eb1ng satin:<\/strong> Mang l\u1ea1i v\u1ebb ngo\u00e0i m\u1ec1m m\u1ea1i, m\u1ecbn m\u00e0ng nh\u01b0ng v\u1eabn duy tr\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n.<\/li><\/ul><h2 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa 202 v\u00e0 c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 kh\u00e1c<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 202 thu\u1ed9c d\u00f2ng th\u00e9p kh\u00f4ng g\u1ec9 austenit 200 v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c so s\u00e1nh v\u1edbi c\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn kh\u00e1c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 so s\u00e1nh gi\u1eefa 202 v\u00e0 m\u1ed9t s\u1ed1 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 ph\u1ed5 bi\u1ebfn kh\u00e1c.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 202 so v\u1edbi 304<\/h3><p><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-304\/\">304 (18\/8)<\/a> c\u00f3 h\u00e0m l\u01b0\u1ee3ng niken cao h\u01a1n (8-10,5%) so v\u1edbi 202, mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i. Tuy nhi\u00ean, 202 ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n v\u00e0 v\u1eabn cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n h\u1ee3p l\u00fd trong m\u00f4i tr\u01b0\u1eddng nh\u1eb9.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 202 so v\u1edbi 316<\/h3><p><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-316\/\">316<\/a> Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 ch\u1ee9a molypden, gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng gi\u00e0u clorua nh\u01b0 \u1ee9ng d\u1ee5ng h\u00e0ng h\u1ea3i. 202, kh\u00f4ng ch\u1ee9a molypden, kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t nh\u01b0 v\u1eady nh\u01b0ng l\u1ea1i c\u00f3 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng h\u01a1n.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 202 so v\u1edbi 201<\/h3><p>C\u1ea3 202 v\u00e0 <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-201\/\">201<\/a> l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 austenit c\u00f3 h\u00e0m l\u01b0\u1ee3ng mangan t\u01b0\u01a1ng t\u1ef1, nh\u01b0ng 202 c\u00f3 nhi\u1ec1u niken h\u01a1n m\u1ed9t ch\u00fat, khi\u1ebfn n\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n v\u00e0 c\u1ee9ng h\u01a1n \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 202 so v\u1edbi 302<\/h3><p><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-302\/\">th\u00e9p kh\u00f4ng g\u1ec9 302<\/a> c\u00f3 t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc t\u01b0\u01a1ng t\u1ef1 nh\u01b0 304 nh\u01b0ng c\u00f3 nhi\u1ec1u carbon h\u01a1n m\u1ed9t ch\u00fat, mang l\u1ea1i \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 c\u1ee9ng t\u1ed1t h\u01a1n. N\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n 202 nh\u01b0ng c\u00f3 chi ph\u00ed cao h\u01a1n.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 202 so v\u1edbi 204<\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 204 c\u00f3 h\u00e0m l\u01b0\u1ee3ng nit\u01a1 cao h\u01a1n 202, c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n trong khi v\u1eabn gi\u1eef chi ph\u00ed th\u1ea5p. Tuy nhi\u00ean, 202 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn h\u01a1n do hi\u1ec7u su\u1ea5t \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh trong nhi\u1ec1u \u1ee9ng d\u1ee5ng.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 202 so v\u1edbi 430<\/h3><p><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-430\/\">430<\/a> l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 ferritic c\u00f3 t\u1eeb t\u00ednh v\u00e0 ch\u1ee9a r\u1ea5t \u00edt ho\u1eb7c kh\u00f4ng ch\u1ee9a niken. 430 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t trong \u0111i\u1ec1u ki\u1ec7n nh\u1eb9 nh\u00e0ng, nh\u01b0ng 202 c\u1ee9ng h\u01a1n v\u00e0 d\u1ec5 t\u1ea1o h\u00ecnh h\u01a1n.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 t\u1ed1t kh\u00f4ng?<\/h2><p>C\u00f3. Th\u00e9p kh\u00f4ng g\u1ec9 202 l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t, ti\u1ebft ki\u1ec7m chi ph\u00ed v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u1eeba ph\u1ea3i, \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng \u0111\u1ecbnh h\u00ecnh t\u1ed1t. Th\u00edch h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng trong nh\u00e0 nh\u01b0 \u0111\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp, \u0111\u1ed3 n\u1ed9i th\u1ea5t v\u00e0 trang tr\u00ed \u00f4 t\u00f4. Tuy nhi\u00ean, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n th\u1ea5p h\u01a1n 304, khi\u1ebfn n\u00f3 \u00edt l\u00fd t\u01b0\u1edfng h\u01a1n cho m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t ho\u1eb7c gi\u00e0u clorua. <\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 t\u1eeb t\u00ednh kh\u00f4ng?<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 202 do c\u1ea5u tr\u00fac austenit c\u1ee7a n\u00f3 th\u01b0\u1eddng kh\u00f4ng c\u00f3 t\u1eeb t\u00ednh trong \u0111i\u1ec1u ki\u1ec7n \u1ee7. Tuy nhi\u00ean, sau khi gia c\u00f4ng ngu\u1ed9i ho\u1eb7c h\u00e0n, do k\u1ebft qu\u1ea3 c\u1ee7a qu\u00e1 tr\u00ecnh bi\u1ebfn \u0111\u1ed5i c\u1ea5u tr\u00fac vi m\u00f4, n\u00f3 c\u00f3 th\u1ec3 bi\u1ec3u hi\u1ec7n m\u1ed9t s\u1ed1 \u0111\u1eb7c t\u00ednh t\u1eeb t\u00ednh nh\u1eb9.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 ph\u1ea3i l\u00e0 lo\u1ea1i th\u00e9p d\u00f9ng trong th\u1ef1c ph\u1ea9m kh\u00f4ng?<\/h2><p>Kh\u00f4ng. Hi\u1ec7n nay, c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 d\u00f9ng trong th\u1ef1c ph\u1ea9m th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean th\u1ecb tr\u01b0\u1eddng l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 304, 316 v\u00e0 430, ngo\u1ea1i tr\u1eeb th\u00e9p kh\u00f4ng g\u1ec9 202. Nh\u01b0ng th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u lo\u1ea1i b\u1ed3n r\u1eeda nh\u00e0 b\u1ebfp, d\u1ee5ng c\u1ee5 n\u1ea5u \u0103n, k\u1eb9p \u1ed1ng, thi\u1ebft b\u1ecb nh\u00e0 h\u00e0ng, v.v.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 b\u1ecb g\u1ec9 kh\u00f4ng?<\/h2><p>M\u1eb7c d\u00f9 th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t nh\u01b0ng n\u00f3 kh\u00f4ng mi\u1ec5n nhi\u1ec5m v\u1edbi <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/rust\/\">r\u1ec9 s\u00e9t<\/a>. Trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t nh\u01b0 v\u00f9ng ven bi\u1ec3n ho\u1eb7c khu c\u00f4ng nghi\u1ec7p c\u00f3 m\u1ee9c \u0111\u1ed9 \u00f4 nhi\u1ec5m cao, th\u00e9p kh\u00f4ng g\u1ec9 202 c\u00f3 th\u1ec3 b\u1ecb \u0103n m\u00f2n theo th\u1eddi gian. B\u1ea3o d\u01b0\u1ee1ng th\u01b0\u1eddng xuy\u00ean, x\u1eed l\u00fd b\u1ec1 m\u1eb7t v\u00e0 v\u1ec7 sinh \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m thi\u1ec3u s\u1ef1 h\u00ecnh th\u00e0nh r\u1ec9 s\u00e9t v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a v\u1eadt li\u1ec7u.<\/p><h2 class=\"wp-block-heading\">Nh\u00e0 s\u1ea3n xu\u1ea5t th\u00e9p kh\u00f4ng g\u1ec9 202: SteelPRO Group<\/h2><p>SteelPRO Group l\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 cung c\u1ea5p th\u00e9p kh\u00f4ng g\u1ec9 202 h\u00e0ng \u0111\u1ea7u, cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u00e1ng tin c\u1eady v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed cho kh\u00e1ch h\u00e0ng trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.<\/p><p><strong>C\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t ti\u00ean ti\u1ebfn:<\/strong> T\u1eadp \u0111o\u00e0n SteelPRO s\u1eed d\u1ee5ng m\u00e1y m\u00f3c v\u00e0 c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m th\u00e9p kh\u00f4ng g\u1ec9 202 cao c\u1ea5p, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng cao trong t\u1eebng l\u00f4 h\u00e0ng.<\/p><p><strong>D\u00f2ng s\u1ea3n ph\u1ea9m \u0111\u1ea7y \u0111\u1ee7: <\/strong>Ch\u00fang t\u00f4i cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 c\u00e1c s\u1ea3n ph\u1ea9m th\u00e9p kh\u00f4ng g\u1ec9 202, bao g\u1ed3m t\u1ea5m, cu\u1ed9n, \u1ed1ng, thanh v\u00e0 que.<\/p><p><strong>Ph\u1ea1m vi to\u00e0n c\u1ea7u:<\/strong> SteelPRO Group xu\u1ea5t kh\u1ea9u 202 s\u1ea3n ph\u1ea9m th\u00e9p kh\u00f4ng g\u1ec9 sang nhi\u1ec1u qu\u1ed1c gia, bao g\u1ed3m c\u00e1c th\u1ecb tr\u01b0\u1eddng l\u1edbn \u1edf B\u1eafc M\u1ef9, Ch\u00e2u \u00c2u, Trung \u0110\u00f4ng v\u00e0 Ch\u00e2u \u00c1. Chu\u1ed7i cung \u1ee9ng to\u00e0n c\u1ea7u \u0111\u1ea3m b\u1ea3o giao h\u00e0ng \u0111\u00fang h\u1ea1n b\u1ea5t k\u1ec3 b\u1ea1n \u1edf \u0111\u00e2u.<\/p><p><strong>Gi\u1ea3i ph\u00e1p t\u00f9y ch\u1ec9nh:<\/strong> Cho d\u00f9 l\u00e0 k\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh hay ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd b\u1ec1 m\u1eb7t, SteelPRO Group \u0111\u1ec1u c\u00f3 gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u c\u1ee7a b\u1ea1n.<\/p><p><strong>Cam k\u1ebft v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng:<\/strong> L\u00e0 m\u1ed9t c\u00f4ng ty \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn ISO 9001, SteelPRO Group \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 202 s\u1ea3n ph\u1ea9m th\u00e9p kh\u00f4ng g\u1ec9 c\u1ee7a m\u00ecnh \u0111\u1ec1u \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n ch\u1ea5t l\u01b0\u1ee3ng qu\u1ed1c t\u1ebf.<\/p><p><strong>H\u1ed7 tr\u1ee3 kh\u00e1ch h\u00e0ng:<\/strong> T\u1eeb kh\u00e2u t\u01b0 v\u1ea5n ban \u0111\u1ea7u \u0111\u1ebfn h\u1ed7 tr\u1ee3 sau b\u00e1n h\u00e0ng, c\u00f4ng ty \u0111\u1ea3m b\u1ea3o giao ti\u1ebfp v\u00e0 h\u1ee3p t\u00e1c li\u1ec1n m\u1ea1ch v\u1edbi kh\u00e1ch h\u00e0ng, gi\u00fap h\u1ecd l\u1ef1a ch\u1ecdn s\u1ea3n ph\u1ea9m t\u1ed1t nh\u1ea5t cho nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a m\u00ecnh.<\/p><p>\u0110\u1ec3 t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 c\u00e1c s\u1ea3n ph\u1ea9m th\u00e9p kh\u00f4ng g\u1ec9 c\u1ee7a SteelPRO Group ho\u1eb7c \u0111\u1ec3 y\u00eau c\u1ea7u b\u00e1o gi\u00e1, <a href=\"https:\/\/steelprogroup.com\/vi\/contact-us\/\">li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i<\/a> H\u00f4m nay.<\/p>","protected":false},"excerpt":{"rendered":"<p>Ch\u00fang t\u00f4i s\u1ebd gi\u1edbi thi\u1ec7u cho b\u1ea1n v\u1ec1 th\u00e0nh ph\u1ea7n, t\u00ednh ch\u1ea5t ch\u00ednh, h\u00ecnh th\u1ee9c, ph\u01b0\u01a1ng ph\u00e1p gia c\u00f4ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 202 v\u00e0 c\u00e1ch [\u2026]<\/p>","protected":false},"author":1,"featured_media":10923,"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 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[4191,112],"tags":[],"class_list":["post-10958","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-grades","category-stainless-steel"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/10958","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=10958"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/10958\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/10923"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=10958"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=10958"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=10958"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}