{"id":11577,"date":"2024-10-09T23:33:00","date_gmt":"2024-10-09T15:33:00","guid":{"rendered":"https:\/\/app11147.cloudwayssites.com\/?p=11577"},"modified":"2024-10-11T09:22:46","modified_gmt":"2024-10-11T01:22:46","slug":"grade-201","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-201\/","title":{"rendered":"Th\u00e9p kh\u00f4ng g\u1ec9 201: \u0110\u1ecbnh ngh\u0129a, Th\u00e0nh ph\u1ea7n, T\u00ednh ch\u1ea5t, X\u1eed l\u00fd, \u1ee8ng d\u1ee5ng v\u00e0 Th\u00eam th\u00f4ng tin"},"content":{"rendered":"

T\u1eadp \u0111o\u00e0n SteelPRO cung c\u1ea5p tr\u1ef1c ti\u1ebfp c\u00e1c s\u1ea3n ph\u1ea9m th\u00e9p SS 201 (UNS S20100\/EN 1.4372) c\u00f3 s\u1eb5n t\u1ea1i nh\u00e0 m\u00e1y: t\u1ea5m, l\u00e1, cu\u1ed9n, d\u1ea3i, l\u00e1 kim lo\u1ea1i, \u1ed1ng, \u1ed1ng d\u1eabn, thanh, que, d\u00e2y, v.v. Ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m 100% \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o v\u1edbi m\u1ee9c chi\u1ebft kh\u1ea5u c\u1ea1nh tranh c\u00f3 th\u1ec3 th\u01b0\u01a1ng l\u01b0\u1ee3ng. Li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i<\/a> \u0111\u1ec3 t\u00f9y ch\u1ec9nh s\u1ea3n ph\u1ea9m c\u1ee7a b\u1ea1n v\u1ec1 h\u00ecnh d\u1ea1ng, t\u00ecnh tr\u1ea1ng, \u0111\u1ed9 ho\u00e0n thi\u1ec7n, c\u00e1ch x\u1eed l\u00fd, v.v.<\/em><\/strong><\/p>

T\u1ed5ng quan v\u1ec1 th\u00e9p kh\u00f4ng g\u1ec9 201<\/h2>

Th\u00e9p kh\u00f4ng g\u1ec9 201 l\u00e0 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 crom-niken-mangan lo\u1ea1i 200 th\u00e9p kh\u00f4ng g\u1ec9 austenit<\/a>, ch\u1ee7 y\u1ebfu bao g\u1ed3m crom 16-18%, niken 3,5-5,5% v\u00e0 mangan 5,5-7,5%. Ph\u00f9 h\u1ee3p v\u1edbi ti\u00eau chu\u1ea9n ASTM A240 v\u00e0 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 1,4372 (EN) v\u00e0 SUS 201 (JIS).<\/p>

L\u1edbp 201 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng \u00f4n h\u00f2a, v\u00e0 c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai tuy\u1ec7t v\u1eddi. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp, trang tr\u00ed \u00f4 t\u00f4 v\u00e0 c\u00e1c c\u00f4ng tr\u00ecnh ki\u1ebfn tr\u00fac. M\u1eb7c d\u00f9 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng h\u01a1n 304, nh\u01b0ng n\u00f3 kh\u00f4ng \u0111\u01b0\u1ee3c khuy\u1ebfn kh\u00edch s\u1eed d\u1ee5ng trong \u0111i\u1ec1u ki\u1ec7n gi\u00e0u clorua ho\u1eb7c \u0103n m\u00f2n cao do h\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p h\u01a1n.<\/p>

\u1ee8ng d\u1ee5ng c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 201<\/h3>
Ng\u00e0nh c\u00f4ng nghi\u1ec7p<\/strong><\/td>\u1ee8ng d\u1ee5ng<\/strong><\/td><\/tr>
\u0110\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp<\/td>b\u1ed3n r\u1eeda, \u0111\u1ed3 n\u1ea5u n\u01b0\u1edbng, dao k\u00e9o, thi\u1ebft b\u1ecb ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m, v.v.<\/td><\/tr>
\u00d4 t\u00f4<\/td>\u0111\u1ed3 trang tr\u00ed \u00f4 t\u00f4, h\u1ec7 th\u1ed1ng \u1ed1ng x\u1ea3, chi ti\u1ebft trang tr\u00ed, \u1ed1p b\u00e1nh xe, v.v.<\/td><\/tr>
Ng\u00e0nh ki\u1ebfn tr\u00fac<\/td>tay v\u1ecbn, t\u1ea5m \u1ed1p thang m\u00e1y, t\u1ea5m trang tr\u00ed, khung c\u1eeda s\u1ed5, v.v.<\/td><\/tr>
H\u00e0ng ti\u00eau d\u00f9ng<\/td>v\u1ecf thi\u1ebft b\u1ecb, \u0111\u1ed3 \u0111\u1ea1c n\u1ed9i th\u1ea5t, \u0111\u1ed3 chi\u1ebfu s\u00e1ng, tay n\u1eafm c\u1eeda, v.v.<\/td><\/tr><\/tbody><\/table><\/figure>

\u01afu \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 201<\/h3>

Sau \u0111\u00e2y l\u00e0 nh\u1eefng \u01b0u \u0111i\u1ec3m v\u00e0 l\u1ee3i \u00edch c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 321:<\/p>

  1. Ti\u1ebft ki\u1ec7m chi ph\u00ed do h\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p h\u01a1n.<\/li>\n\n
  2. Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao trong m\u00f4i tr\u01b0\u1eddng \u00f4n h\u00f2a.<\/li>\n\n
  3. \u0110\u1ed9 b\u1ec1n k\u00e9o cao, gi\u00fap s\u1ea3n ph\u1ea9m b\u1ec1n v\u00e0 ch\u1eafc ch\u1eafn.<\/li>\n\n
  4. Kh\u1ea3 n\u0103ng t\u1ea1o h\u00ecnh t\u1ed1t v\u00e0 d\u1ec5 ch\u1ebf t\u1ea1o.<\/li>\n\n
  5. Nh\u1eb9, ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/li><\/ol>

    Sau \u0111\u00e2y l\u00e0 nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m v\u00e0 h\u1ea1n ch\u1ebf c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 321:<\/p>

    1. Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n th\u1ea5p h\u01a1n trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t so v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p cao c\u1ea5p h\u01a1n.<\/li>\n\n
    2. D\u1ec5 b\u1ecb r\u1ec9 s\u00e9t h\u01a1n khi ti\u1ebfp x\u00fac v\u1edbi n\u01b0\u1edbc m\u1eb7n ho\u1eb7c m\u00f4i tr\u01b0\u1eddng c\u00f3 t\u00ednh axit.<\/li>\n\n
    3. \u00cdt b\u1ec1n h\u01a1n \u1edf nhi\u1ec7t \u0111\u1ed9 kh\u1eafc nghi\u1ec7t.<\/li>\n\n
    4. C\u00f3 th\u1ec3 kh\u00f3 h\u00e0n h\u01a1n so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 c\u1ea5p cao h\u01a1n.<\/li>\n\n
    5. Gi\u1ea3m kh\u1ea3 n\u0103ng l\u00e0m vi\u1ec7c \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng n\u1eb7ng do h\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p.<\/li><\/ol>

      C\u00e1c c\u1ea5p \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 201<\/h3>
      Qu\u1ed1c gia\/Khu v\u1ef1c<\/strong><\/td>Ti\u00eau chu\u1ea9n\/\u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt<\/strong><\/td>L\u1edbp t\u01b0\u01a1ng \u0111\u01b0\u01a1ng<\/strong><\/td><\/tr>
      Li\u00ean minh ch\u00e2u \u00c2u<\/td>EN 10088-2<\/td>X12CrMnNiN17-7-5 (1.4372)<\/td><\/tr>
      Hoa K\u1ef3<\/td>Ti\u00eau chu\u1ea9n ASTMA240<\/td>201<\/td><\/tr>
      Nh\u1eadt B\u1ea3n<\/td>Ti\u00eau chu\u1ea9n JIS G4304<\/td>SUS201<\/td><\/tr>
      Ph\u00e1p<\/td>S\u1ed1 A36-711<\/td>Z12CMN17-07Az<\/td><\/tr><\/tbody><\/table><\/figure>

      Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 201<\/h2>

      Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t<\/h3>

      201 cung c\u1ea5p th\u00e9p kh\u00f4ng g\u1ec9 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u1eeba ph\u1ea3i,<\/strong> x\u1eed l\u00fd l\u00ean \u0111\u1ebfn kho\u1ea3ng 500\u00b0C (1.112\u00b0F)<\/strong>. V\u01b0\u1ee3t qu\u00e1 nhi\u1ec7t \u0111\u1ed9 n\u00e0y c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a. H\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p h\u01a1n d\u1eabn \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t gi\u1ea3m so v\u1edbi c\u00e1c lo\u1ea1i nh\u01b0 304 v\u00e0 316. Do \u0111\u00f3, th\u00e9p kh\u00f4ng g\u1ec9 201 ph\u00f9 h\u1ee3p h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t \u0111\u1ed9 th\u1ec9nh tho\u1ea3ng ho\u1eb7c n\u01a1i chi ph\u00ed l\u00e0 m\u1ed1i quan t\u00e2m ch\u00ednh thay v\u00ec cho m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao li\u00ean t\u1ee5c.<\/p>

      Ch\u1ed1ng \u0103n m\u00f2n<\/h3>

      Th\u00e9p kh\u00f4ng g\u1ec9 201 th\u00edch h\u1ee3p cho m\u00f4i tr\u01b0\u1eddng nh\u1eb9 nh\u00e0ng<\/strong>, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111i\u1ec1u ki\u1ec7n trong nh\u00e0 ho\u1eb7c kh\u00f4 r\u00e1o. Trong c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t h\u01a1n, nh\u01b0 n\u01a1i c\u00f3 \u0111\u1ed9 \u1ea9m, n\u01b0\u1edbc m\u1eb7n ho\u1eb7c ti\u1ebfp x\u00fac v\u1edbi axit, n\u00f3 c\u00f3 th\u1ec3 b\u1ecb \u0103n m\u00f2n. C\u00e1c d\u1ea1ng \u0103n m\u00f2n ph\u1ed5 bi\u1ebfn bao g\u1ed3m r\u1ed7, \u0103n m\u00f2n khe h\u1edf v\u00e0 r\u1ec9 s\u00e9t b\u1ec1 m\u1eb7t. Th\u00e9p kh\u00f4ng g\u1ec9 201 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t nh\u1ea5t trong m\u00f4i tr\u01b0\u1eddng kh\u00f4ng ti\u1ebfp x\u00fac nhi\u1ec1u v\u1edbi h\u00f3a ch\u1ea5t.<\/p>

      Gia c\u00f4ng th\u00e9p kh\u00f4ng g\u1ec9 201<\/h2>

      H\u00ecnh th\u00e0nh<\/h3>

      H\u00ecnh th\u00e0nh th\u00e9p kh\u00f4ng g\u1ec9 201 bao g\u1ed3m l\u00e0m vi\u1ec7c l\u1ea1nh<\/strong>, v\u00ec n\u00f3 c\u1ee9ng l\u1ea1i nhanh. H\u1ee3p kim n\u00e0y \u00edt d\u1ec5 u\u1ed1n h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9 304 do h\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p h\u01a1n. N\u00f3 c\u00f3 th\u1ec3 c\u1ea7n nhi\u1ec1u l\u1ef1c h\u01a1n ho\u1eb7c thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng trong qu\u00e1 tr\u00ecnh u\u1ed1n, k\u00e9o gi\u00e3n ho\u1eb7c k\u00e9o s\u00e2u. \u1ee6 c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m \u1ee9ng su\u1ea5t b\u00ean trong sau khi t\u1ea1o h\u00ecnh. Do t\u1ed1c \u0111\u1ed9 l\u00e0m c\u1ee9ng khi gia c\u00f4ng, \u1ee7 trung gian c\u00f3 th\u1ec3 c\u1ea7n thi\u1ebft cho c\u00e1c h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p h\u01a1n.<\/p>

      H\u00e0n<\/h3>

      Th\u00e9p kh\u00f4ng g\u1ec9 201 th\u01b0\u1eddng l\u00e0 d\u1ec5 h\u00e0n<\/strong>, nh\u01b0ng c\u1ea7n ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 th\u00edch h\u1ee3p \u0111\u1ec3 tr\u00e1nh cong v\u00eanh ho\u1eb7c n\u1ee9t. V\u1eadt li\u1ec7u \u0111\u1ed9n t\u01b0\u01a1ng t\u1ef1 nh\u01b0 th\u00e9p kh\u00f4ng g\u1ec9 201 ho\u1eb7c 304 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. Nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, do \u0111\u00f3, vi\u1ec7c qu\u1ea3n l\u00fd nhi\u1ec7t l\u01b0\u1ee3ng \u0111\u1ea7u v\u00e0o v\u00e0 l\u00e0m m\u00e1t gi\u1eefa c\u00e1c l\u1ea7n h\u00e0n l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft. V\u1ec7 sinh tr\u01b0\u1edbc khi h\u00e0n r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 tr\u00e1nh nhi\u1ec5m b\u1ea9n. Ki\u1ec3m so\u00e1t c\u00e1c th\u00f4ng s\u1ed1 h\u00e0n v\u00e0 nhi\u1ec7t l\u01b0\u1ee3ng \u0111\u1ea7u v\u00e0o gi\u00fap ng\u0103n ng\u1eeba n\u1ee9t n\u00f3ng, \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng m\u1ed1i h\u00e0n.<\/p>

      Gia c\u00f4ng<\/h3>

      201 th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng gia c\u00f4ng v\u1eeba ph\u1ea3i<\/strong>. N\u00f3 c\u1ee9ng h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9 304 do h\u00e0m l\u01b0\u1ee3ng mangan cao h\u01a1n, l\u00e0m cho n\u00f3 kh\u00f3 c\u1eaft h\u01a1n<\/strong>. C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh bao g\u1ed3m:<\/p>

      1. L\u00e0m vi\u1ec7c ch\u0103m ch\u1ec9<\/strong>:N\u00f3 c\u00f3 xu h\u01b0\u1edbng c\u1ee9ng l\u1ea1i trong qu\u00e1 tr\u00ecnh gia c\u00f4ng, l\u00e0m t\u0103ng \u0111\u1ed9 kh\u00f3 c\u1eaft khi qu\u00e1 tr\u00ecnh ti\u1ebfn tri\u1ec3n.<\/li>\n\n
      2. T\u1ed1c \u0111\u1ed9 c\u1eaft<\/strong>:Y\u00eau c\u1ea7u t\u1ed1c \u0111\u1ed9 c\u1eaft th\u1ea5p h\u01a1n \u0111\u1ec3 tr\u00e1nh qu\u00e1 nhi\u1ec7t v\u00e0 h\u01b0 h\u1ecfng d\u1ee5ng c\u1ee5, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng t\u00f4i c\u1ee9ng khi gia c\u00f4ng.<\/li>\n\n
      3. D\u1ee5ng c\u1ee5 m\u00e0i m\u00f2n<\/strong>:D\u1ee5ng c\u1ee5 m\u00f2n nhanh h\u01a1n do c\u00f3 \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 d\u1ebbo dai cao, \u0111\u00f2i h\u1ecfi ph\u1ea3i thay d\u1ee5ng c\u1ee5 th\u01b0\u1eddng xuy\u00ean.<\/li>\n\n
      4. S\u1ef1 h\u00ecnh th\u00e0nh chip<\/strong>: T\u1ea1o ra phoi d\u00e0i, c\u1ee9ng, c\u00f3 th\u1ec3 g\u00e2y kh\u00f3 kh\u0103n trong vi\u1ec7c lo\u1ea1i b\u1ecf phoi v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh gia c\u00f4ng.<\/li>\n\n
      5. B\u00f4i tr\u01a1n<\/strong>: L\u00e0m m\u00e1t v\u00e0 b\u00f4i tr\u01a1n th\u00edch h\u1ee3p l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 ng\u0103n ng\u1eeba h\u01b0 h\u1ecfng d\u1ee5ng c\u1ee5, gi\u1ea3m nhi\u1ec7t v\u00e0 c\u1ea3i thi\u1ec7n b\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n.<\/li><\/ol>

        X\u1eed l\u00fd nhi\u1ec7t<\/h3>

        Th\u00e9p kh\u00f4ng g\u1ec9 201 kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng b\u1eb1ng c\u00e1ch x\u1eed l\u00fd nhi\u1ec7t, nh\u01b0ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gia c\u01b0\u1eddng b\u1eb1ng c\u00e1ch l\u00e0m ngu\u1ed9i.<\/p>

        \u0110\u1ec3 \u1ee7, h\u00e3y nung n\u00f3ng \u0111\u1ebfn 1850-1950\u00b0F (1010-1066\u00b0C), sau \u0111\u00f3 l\u00e0m ngu\u1ed9i nhanh b\u1eb1ng c\u00e1ch l\u00e0m ngu\u1ed9i b\u1eb1ng n\u01b0\u1edbc ho\u1eb7c l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed. Gi\u1eef nhi\u1ec7t \u0111\u1ed9 \u1ee7 \u1edf m\u1ee9c th\u1ea5p nh\u1ea5t c\u00f3 th\u1ec3 \u0111\u1ec3 gi\u1ea3m thi\u1ec3u hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00f3ng c\u1eb7n, v\u00ec th\u00e9p kh\u00f4ng g\u1ec9 201 d\u1ec5 b\u1ecb \u0111\u00f3ng c\u1eb7n h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9 C\u1ea5p 301. Sau khi x\u1eed l\u00fd nhi\u1ec7t, c\u00f3 th\u1ec3 c\u1ea7n x\u1eed l\u00fd b\u1ec1 m\u1eb7t nh\u01b0 ng\u00e2m chua ho\u1eb7c th\u1ee5 \u0111\u1ed9ng h\u00f3a \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, v\u00ec th\u00e9p kh\u00f4ng g\u1ec9 201 d\u1ec5 b\u1ecb oxy h\u00f3a h\u01a1n.<\/p>

        Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 201<\/h2>

        Ki\u1ec3m tra b\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 bi\u1ebft th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 201:<\/p>

        Y\u1ebfu t\u1ed1<\/strong><\/td>Cacbon, C<\/strong><\/td>Crom, Cr<\/strong><\/td>S\u1eaft, Fe<\/strong><\/td>Mangan, Mn<\/strong><\/td>Niken, Ni<\/strong><\/td>Nit\u01a1, N<\/strong><\/td>Ph\u1ed1t pho, P<\/strong><\/td>Silic, Si<\/strong><\/td>L\u01b0u hu\u1ef3nh, S<\/strong><\/td><\/tr>
        Wt%<\/td>\u2264 0,15 %<\/td>16 – 18 %<\/td>67.51 \u2013 75 % (Nh\u01b0 ph\u1ea7n c\u00f2n l\u1ea1i)<\/td>5.5 – 7.5 %<\/td>3.5 – 5.5 %<\/td>\u2264 0,25 %<\/td>\u2264 0,060 %<\/td>\u2264 1,0 %<\/td>\u2264 0,030 %<\/td><\/tr><\/tbody><\/table><\/figure>

        T\u00ednh ch\u1ea5t c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 201<\/h2>

        T\u00ednh ch\u1ea5t v\u1eadt l\u00fd<\/h3>

        Ki\u1ec3m tra b\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 bi\u1ebft c\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ed1t l\u00f5i c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 201:<\/p>

        T\u00e0i s\u1ea3n<\/strong><\/td>Gi\u00e1 tr\u1ecb<\/strong><\/td>Hi\u1ec7u su\u1ea5t<\/strong><\/td><\/tr>
        T\u1ec9 tr\u1ecdng<\/td>7,81 g\/cc (0,282 lb\/in\u00b3)<\/td>Nh\u1eb9 h\u01a1n h\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i th\u00e9p carbon, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 kh\u00e1c.<\/td><\/tr>
        \u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/td>1399 \u2013 1454 \u00b0C (2550 \u2013 2650 \u00b0F)<\/td>\u0110i\u1ec3m n\u00f3ng ch\u1ea3y cao, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 304.<\/td><\/tr>
        CTE, Tuy\u1ebfn t\u00ednh @ 0-100\u00b0C\/32-212\u00b0F<\/td>15,7 \u00b5m\/m-\u00b0C (8,7 \u00b5in\/in-\u00b0F)<\/td>Gi\u00e3n n\u1edf nhi\u1ec1u h\u01a1n khi ch\u1ecbu nhi\u1ec7t so v\u1edbi 304, nh\u01b0ng \u00edt h\u01a1n h\u1ee3p kim nh\u00f4m.<\/td><\/tr>
        Nhi\u1ec7t dung ri\u00eang @ 0-100\u00b0C\/212\u00b0F<\/td>0,500 J\/g-\u00b0C (0,12 BTU\/lb-\u00b0F)<\/td>Kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 nhi\u1ec7t t\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 kh\u00e1c nh\u01b0 304.<\/td><\/tr>
        \u0110\u1ed9 d\u1eabn nhi\u1ec7t \u1edf 100\u00b0C\/212\u00b0F<\/td>16,2 W\/mK (112 BTU-in\/gi\u1edd-ft\u00b2-\u00b0F)<\/td>\u0110\u1ed9 d\u1eabn nhi\u1ec7t th\u1ea5p h\u01a1n th\u00e9p cacbon, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 th\u00e9p 304.<\/td><\/tr>
        \u0110i\u1ec7n tr\u1edf su\u1ea5t<\/td>0,0000685 ohm-cm (68,5 \u00b5ohm-cm)<\/td>\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n kh\u00e1 th\u1ea5p, \u0111\u1eb7c tr\u01b0ng c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9.<\/td><\/tr>
        \u0110\u1ed9 t\u1eeb th\u1ea9m<\/td>1.02, H = 200 Oersted, \u1ee6<\/td>H\u01a1i c\u00f3 t\u1eeb t\u00ednh<\/td><\/tr><\/tbody><\/table><\/figure>

        T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc<\/h3>

        Ki\u1ec3m tra b\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 bi\u1ebft c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ed1t l\u00f5i c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 201:<\/p>

        T\u00e0i s\u1ea3n<\/strong><\/td>Gi\u00e1 tr\u1ecb (H\u1ec7 m\u00e9t\/H\u1ec7 Anh)<\/strong><\/td>Hi\u1ec7u su\u1ea5t<\/strong><\/td><\/tr>
        \u0110\u1ed9 b\u1ec1n k\u00e9o (\u1ee6)<\/td>758 MPa (110 ksi)<\/td>\u0110\u1ee7 m\u1ea1nh \u0111\u1ec3 ch\u1ecbu t\u1ea3i tr\u1ecdng v\u1eeba ph\u1ea3i (d\u01b0\u1edbi 316), ph\u00f9 h\u1ee3p cho m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng chung.<\/td><\/tr>
        Gi\u1edbi h\u1ea1n ch\u1ea3y (@Strain 0.2%, \u0110\u00e3 \u1ee7)<\/td>379 MPa (55 ksi)<\/td>Ch\u1ecbu \u0111\u01b0\u1ee3c l\u1ef1c c\u0103ng h\u00e0ng ng\u00e0y t\u1ed1t, nh\u01b0ng s\u1ebd cong khi ch\u1ecbu t\u1ea3i n\u1eb7ng (th\u1ea5p h\u01a1n 304 v\u00e0 316).<\/td><\/tr>
        \u0110\u1ed9 c\u1ee9ng Rockwell (\u1ee6)<\/td>87 HRB<\/td>Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t, ph\u00f9 h\u1ee3p v\u1edbi m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng th\u00f4ng th\u01b0\u1eddng, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 304.<\/td><\/tr>
        \u0110\u1ed9 gi\u00e3n d\u00e0i khi \u0111\u1ee9t (t\u00ednh b\u1eb1ng 2 inch, \u1ee7)<\/td>52%<\/td>R\u1ea5t linh ho\u1ea1t, c\u00f3 th\u1ec3 k\u00e9o d\u00e0i h\u01a1n 304 tr\u01b0\u1edbc khi \u0111\u1ee9t, l\u00fd t\u01b0\u1edfng \u0111\u1ec3 t\u1ea1o h\u00ecnh.<\/td><\/tr>
        M\u00f4 \u0111un Young<\/td>197 GPa (28,6 msi)<\/td>Cung c\u1ea5p \u0111\u1ed9 c\u1ee9ng \u0111i\u1ec3n h\u00ecnh \u0111\u1ec3 h\u1ed7 tr\u1ee3 k\u1ebft c\u1ea5u, ti\u00eau chu\u1ea9n cho th\u00e9p kh\u00f4ng g\u1ec9.<\/td><\/tr><\/tbody><\/table><\/figure>

        T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc<\/h3>

        Ki\u1ec3m tra b\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 bi\u1ebft c\u00e1c t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ed1t l\u00f5i c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 201:<\/p>

        T\u00e0i s\u1ea3n<\/strong><\/td>S\u1ef1 mi\u00eau t\u1ea3<\/strong><\/td>Hi\u1ec7u su\u1ea5t<\/strong><\/td><\/tr>
        Ch\u1ed1ng \u0103n m\u00f2n<\/td>Kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i h\u01b0 h\u1ea1i do c\u00e1c y\u1ebfu t\u1ed1 b\u00ean ngo\u00e0i nh\u01b0 \u0111\u1ed9 \u1ea9m, h\u00f3a ch\u1ea5t ho\u1eb7c mu\u1ed1i.<\/td>Trung b\u00ecnh, ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng c\u00f3 m\u1ee9c \u0111\u1ed9 \u0103n m\u00f2n t\u1eeb th\u1ea5p \u0111\u1ebfn trung b\u00ecnh. \u00cdt ch\u1ecbu \u0111\u01b0\u1ee3c h\u01a1n 304.<\/td><\/tr>
        Kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a<\/td>Kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i qu\u00e1 tr\u00ecnh oxy h\u00f3a ho\u1eb7c r\u1ec9 s\u00e9t khi ti\u1ebfp x\u00fac v\u1edbi oxy \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/td>Nh\u00ecn chung c\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c trong \u0111i\u1ec1u ki\u1ec7n ti\u00eau chu\u1ea9n nh\u01b0ng k\u00e9m hi\u1ec7u qu\u1ea3 h\u01a1n trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao.<\/td><\/tr>
        \u0110\u1ed9 \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc<\/td>T\u00ednh ch\u1ea5t cho ph\u00e9p th\u00e9p kh\u00f4ng thay \u0111\u1ed5i khi ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec1u lo\u1ea1i h\u00f3a ch\u1ea5t kh\u00e1c nhau.<\/td>\u1ed4n \u0111\u1ecbnh trong m\u00f4i tr\u01b0\u1eddng nh\u1eb9 nh\u01b0ng k\u00e9m \u1ed5n \u0111\u1ecbnh h\u01a1n trong m\u00f4i tr\u01b0\u1eddng h\u00f3a ch\u1ea5t c\u00f3 t\u00ednh \u0103n m\u00f2n cao.<\/td><\/tr>
        Kh\u1ea3 n\u0103ng kh\u00e1ng axit v\u00e0 ki\u1ec1m<\/td>Kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i h\u01b0 h\u1ecfng ho\u1eb7c suy tho\u00e1i khi ti\u1ebfp x\u00fac v\u1edbi ch\u1ea5t c\u00f3 t\u00ednh axit ho\u1eb7c ki\u1ec1m.<\/td>C\u00f3 gi\u1edbi h\u1ea1n, ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng axit\/ki\u1ec1m y\u1ebfu, nh\u01b0ng kh\u00f4ng th\u00edch h\u1ee3p cho c\u00e1c h\u00f3a ch\u1ea5t m\u1ea1nh.<\/td><\/tr>
        Ch\u1ed1ng g\u1ec9<\/td>Kh\u1ea3 n\u0103ng ng\u0103n ng\u1eeba s\u1ef1 h\u00ecnh th\u00e0nh r\u1ec9 s\u00e9t, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong \u0111i\u1ec1u ki\u1ec7n \u1ea9m \u01b0\u1edbt.<\/td>Kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9 \u1edf m\u1ee9c trung b\u00ecnh, th\u1ea5p h\u01a1n 304, nh\u01b0ng ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n kh\u00f4ng kh\u1eafc nghi\u1ec7t.<\/td><\/tr><\/tbody><\/table><\/figure>

        So s\u00e1nh th\u00e9p kh\u00f4ng g\u1ec9 201 v\u1edbi 304 v\u1edbi 316<\/h2>

        Ki\u1ec3m tra b\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 c\u00f3 s\u1ef1 so s\u00e1nh nhanh gi\u1eefa th\u00e9p kh\u00f4ng g\u1ec9 201, 304 v\u00e0 316:<\/p>

        T\u00e0i s\u1ea3n<\/strong><\/td>201<\/strong><\/td>304<\/a><\/strong><\/td>316<\/a><\/strong><\/td><\/tr>
        Ki\u1ec3u<\/td>Austenit<\/td>Austenit<\/td>Austenit<\/td><\/tr>
        C\u1ea5u tr\u00fac tinh th\u1ec3<\/td>Kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng t\u00e2m m\u1eb7t (FCC)<\/td>Kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng t\u00e2m m\u1eb7t (FCC)<\/td>Kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng t\u00e2m m\u1eb7t (FCC)<\/td><\/tr>
        Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc<\/td>Cr: 16-18%, Ni: 3,5-5,5%<\/td>Cr: 18-20%, Ni: 8-10,5%<\/td>Cr: 16-18%, Ni: 10-14%, Mo: 2-3%<\/td><\/tr>
        Ch\u1ed1ng \u0103n m\u00f2n<\/td>V\u1eeba ph\u1ea3i<\/td>T\u1ed1t<\/td>Xu\u1ea5t s\u1eafc<\/td><\/tr>
        S\u1ee9c m\u1ea1nh<\/td>Cao h\u01a1n<\/td>Trung b\u00ecnh<\/td>Th\u1ea5p h\u01a1n<\/td><\/tr>
        \u0110\u1ed9 c\u1ee9ng<\/td>Cao h\u01a1n<\/td>Trung b\u00ecnh<\/td>Th\u1ea5p h\u01a1n<\/td><\/tr>
        Kh\u1ea3 n\u0103ng \u0111\u1ecbnh h\u00ecnh<\/td>T\u1ed1t<\/td>Xu\u1ea5t s\u1eafc<\/td>Xu\u1ea5t s\u1eafc<\/td><\/tr>
        Kh\u1ea3 n\u0103ng h\u00e0n<\/td>H\u1ed9i ch\u1ee3<\/td>T\u1ed1t<\/td>T\u1ed1t<\/td><\/tr>
        Kh\u1ea3 n\u0103ng gia c\u00f4ng<\/td>H\u1ed9i ch\u1ee3<\/td>T\u1ed1t<\/td>H\u1ed9i ch\u1ee3<\/td><\/tr>
        T\u00ednh ch\u1ea5t t\u1eeb t\u00ednh<\/td>H\u01a1i c\u00f3 t\u1eeb t\u00ednh<\/td>Kh\u00f4ng t\u1eeb t\u00ednh<\/td>Kh\u00f4ng t\u1eeb t\u00ednh<\/td><\/tr>
        Tr\u1ecb gi\u00e1<\/td>Th\u1ea5p h\u01a1n<\/td>V\u1eeba ph\u1ea3i<\/td>Cao h\u01a1n<\/td><\/tr>
        \u1ee8ng d\u1ee5ng<\/td>\u0110\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp, ph\u1ee5 t\u00f9ng \u00f4 t\u00f4<\/td>Thi\u1ebft b\u1ecb ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m, s\u1eefa<\/td>\u1ee8ng d\u1ee5ng h\u00f3a h\u1ecdc v\u00e0 h\u00e0ng h\u1ea3i<\/td><\/tr><\/tbody><\/table><\/figure>

        Th\u00e9p kh\u00f4ng g\u1ec9 201 hay 304 t\u1ed1t h\u01a1n?<\/h3>

        Th\u00e9p kh\u00f4ng g\u1ec9 304 t\u1ed1t h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9 201 v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, \u0111\u1ed9 b\u1ec1n v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng t\u1ed5ng th\u1ec3. Th\u00e9p kh\u00f4ng g\u1ec9 201 r\u1ebb h\u01a1n nh\u01b0ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n k\u00e9m h\u01a1n v\u00e0 d\u1ec5 b\u1ecb g\u1ec9 s\u00e9t h\u01a1n.<\/p>

        Nh\u1eefng g\u00ec b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 quan t\u00e2m<\/h2>

        Th\u00e9p kh\u00f4ng g\u1ec9 201 c\u00f3 ch\u1ed1ng g\u1ec9 kh\u00f4ng?<\/h3>

        Kh\u00f4ng, th\u00e9p kh\u00f4ng g\u1ec9 201 kh\u00f4ng ho\u00e0n to\u00e0n ch\u1ed1ng g\u1ec9. N\u00f3 ch\u1ed1ng g\u1ec9 t\u1ed1t h\u01a1n th\u00e9p th\u01b0\u1eddng nh\u01b0ng k\u00e9m h\u01a1n c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 cao c\u1ea5p h\u01a1n nh\u01b0 th\u00e9p kh\u00f4ng g\u1ec9 304 ho\u1eb7c 316.<\/p>

        Th\u00e9p kh\u00f4ng g\u1ec9 201 c\u00f3 t\u1eeb t\u00ednh kh\u00f4ng?<\/h3>

        Th\u00e9p kh\u00f4ng g\u1ec9 201 c\u00f3 t\u1eeb t\u00ednh. M\u1eb7c d\u00f9 l\u00e0 lo\u1ea1i austenit, nh\u01b0ng h\u00e0m l\u01b0\u1ee3ng mangan cao h\u01a1n v\u00e0 h\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p h\u01a1n c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn m\u1ed9t s\u1ed1 t\u1eeb t\u00ednh, \u0111\u1eb7c bi\u1ec7t l\u00e0 sau khi gia c\u00f4ng ngu\u1ed9i.<\/p>

        \u0110\u1ecdc li\u00ean quan<\/strong>
        Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 t\u1eeb t\u00ednh kh\u00f4ng<\/a>?<\/a><\/p>

        Th\u00e9p kh\u00f4ng g\u1ec9 201 c\u00f3 ph\u1ea3i l\u00e0 lo\u1ea1i th\u00e9p d\u00f9ng trong th\u1ef1c ph\u1ea9m kh\u00f4ng?<\/h3>

        C\u00f3, th\u00e9p kh\u00f4ng g\u1ec9 201 \u0111\u01b0\u1ee3c coi l\u00e0 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 d\u00f9ng trong th\u1ef1c ph\u1ea9m, nh\u01b0ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a n\u00f3 th\u1ea5p h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 kh\u00e1c nh\u01b0 304, v\u00ec v\u1eady n\u00f3 c\u00f3 th\u1ec3 kh\u00f4ng ph\u00f9 h\u1ee3p cho m\u1ecdi \u1ee9ng d\u1ee5ng li\u00ean quan \u0111\u1ebfn th\u1ef1c ph\u1ea9m.<\/p>

        Lo\u1ea1i n\u00e0o t\u1ed1t h\u01a1n khi d\u00f9ng trong th\u1ef1c ph\u1ea9m, 201 hay 304?<\/h3>

        \u0110\u1ed1i v\u1edbi th\u1ef1c ph\u1ea9m, th\u00e9p kh\u00f4ng g\u1ec9 304 t\u1ed1t h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9 201 v\u00ec n\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n cao h\u01a1n, gi\u00fap an to\u00e0n h\u01a1n khi ti\u1ebfp x\u00fac v\u1edbi th\u1ef1c ph\u1ea9m trong th\u1eddi gian d\u00e0i.<\/p>

        Th\u00e9p kh\u00f4ng g\u1ec9 201 c\u00f3 ch\u1ed1ng d\u1ecb \u1ee9ng kh\u00f4ng?<\/h3>

        C\u00f3, th\u00e9p kh\u00f4ng g\u1ec9 201 th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 kh\u00f4ng g\u00e2y d\u1ecb \u1ee9ng, nh\u01b0ng n\u00f3 c\u00f3 th\u1ec3 g\u00e2y ra ph\u1ea3n \u1ee9ng \u1edf m\u1ed9t s\u1ed1 ng\u01b0\u1eddi nh\u1ea1y c\u1ea3m do c\u00f3 ch\u1ee9a niken.<\/p>

        Th\u00e9p kh\u00f4ng g\u1ec9 201 c\u00f3 th\u1ec3 h\u00e0n \u0111\u01b0\u1ee3c kh\u00f4ng?<\/h3>

        C\u00f3, th\u00e9p kh\u00f4ng g\u1ec9 201 c\u00f3 th\u1ec3 h\u00e0n \u0111\u01b0\u1ee3c, nh\u01b0ng \u0111\u00f2i h\u1ecfi k\u1ef9 thu\u1eadt v\u00e0 c\u00e2n nh\u1eafc ph\u00f9 h\u1ee3p do h\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 kh\u00e1c.<\/p>

        Th\u00e9p kh\u00f4ng g\u1ec9 201 c\u00f3 t\u1ed1t \u0111\u1ec3 s\u1eed d\u1ee5ng ngo\u00e0i tr\u1eddi kh\u00f4ng?<\/h3>

        Kh\u00f4ng, th\u00e9p kh\u00f4ng g\u1ec9 201 kh\u00f4ng l\u00fd t\u01b0\u1edfng \u0111\u1ec3 s\u1eed d\u1ee5ng ngo\u00e0i tr\u1eddi v\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a n\u00f3 k\u00e9m h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 kh\u00e1c nh\u01b0 304 ho\u1eb7c 316. N\u00f3 c\u00f3 th\u1ec3 b\u1ecb g\u1ec9 trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t ngo\u00e0i tr\u1eddi.<\/p>

        T\u00f3m t\u1eaft & Th\u00eam n\u1eefa<\/h2>

        B\u00e0i vi\u1ebft n\u00e0y gi\u1ea3i th\u00edch ng\u1eafn g\u1ecdn v\u1ec1 \u0111\u1ecbnh ngh\u0129a, th\u00e0nh ph\u1ea7n, t\u00ednh ch\u1ea5t, qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn, \u1ee9ng d\u1ee5ng v\u00e0 c\u00e1c kh\u00eda c\u1ea1nh quan tr\u1ecdng kh\u00e1c c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 201. \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 blog c\u1ee7a ch\u00fang t\u00f4i<\/a> ho\u1eb7c li\u00ean h\u1ec7 v\u1edbi c\u00e1c chuy\u00ean gia kim lo\u1ea1i c\u1ee7a ch\u00fang t\u00f4i<\/a>.
        L\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 cung c\u1ea5p gi\u1ea3i ph\u00e1p h\u00e0ng \u0111\u1ea7u v\u1ec1 th\u00e9p chuy\u00ean d\u1ee5ng, SteelPRO cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p \u1ee9ng d\u1ee5ng \u0111a ng\u00e0nh v\u00e0 d\u1ecbch v\u1ee5 t\u00f9y ch\u1ec9nh. Ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m 100% v\u00e0 cam k\u1ebft ph\u00e1t tri\u1ec3n c\u00f9ng v\u1edbi kh\u00e1ch h\u00e0ng. Truy c\u1eadp         trang web c\u1ee7a ch\u00fang t\u00f4i<\/a> \u0111\u1ec3 t\u00ecm hi\u1ec3u th\u00eam, ho\u1eb7c g\u1eedi cho ch\u00fang t\u00f4i m\u1ed9t y\u00eau c\u1ea7u<\/a>. Ch\u00fang t\u00f4i s\u1ebd li\u00ean h\u1ec7 v\u1edbi b\u1ea1n s\u1edbm nh\u1ea5t!<\/p>","protected":false},"excerpt":{"rendered":"

        SteelPRO Group cung c\u1ea5p tr\u1ef1c ti\u1ebfp c\u00e1c s\u1ea3n ph\u1ea9m th\u00e9p SS 201 (UNS S20100\/EN 1.4372) t\u1eeb nh\u00e0 m\u00e1y: t\u1ea5m, l\u00e1, cu\u1ed9n, d\u1ea3i, l\u00e1 m\u1ecfng, \u1ed1ng, \u1ed1ng tr\u00f2n, thanh, [\u2026]<\/p>","protected":false},"author":1,"featured_media":11578,"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":[],"class_list":["post-11577","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\/11577","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=11577"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/11577\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/11578"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=11577"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=11577"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=11577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}