{"id":20198,"date":"2025-01-05T05:49:00","date_gmt":"2025-01-04T21:49:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=20198"},"modified":"2025-01-03T14:17:46","modified_gmt":"2025-01-03T06:17:46","slug":"die-steel","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/tool-steel\/knowledge\/die-steel\/","title":{"rendered":"Th\u00e9p khu\u00f4n l\u00e0 g\u00ec? T\u00ednh ch\u1ea5t, c\u1ea5p \u0111\u1ed9, \u1ee9ng d\u1ee5ng"},"content":{"rendered":"<p>L\u00e0 m\u1ed9t chuy\u00ean gia to\u00e0n c\u1ea7u v\u1ec1 s\u1ea3n xu\u1ea5t th\u00e9p, SteelPro Group nh\u1eadn ra t\u1ea7m quan tr\u1ecdng c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe. B\u00e0i vi\u1ebft n\u00e0y xem x\u00e9t c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m, ph\u00e2n lo\u1ea1i v\u00e0 \u1ee9ng d\u1ee5ng thi\u1ebft y\u1ebfu c\u1ee7a n\u00f3 \u0111\u1ec3 h\u01b0\u1edbng d\u1eabn b\u1ea1n l\u1ef1a ch\u1ecdn t\u00f9y ch\u1ecdn l\u00fd t\u01b0\u1edfng.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p khu\u00f4n l\u00e0 g\u00ec?<\/h2><p>Th\u00e9p khu\u00f4n l\u00e0 v\u1eadt li\u1ec7u hi\u1ec7u su\u1ea5t cao \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho khu\u00f4n, khu\u00f4n m\u1eabu v\u00e0 d\u1ee5ng c\u1ee5 trong \u0111\u00fac, r\u00e8n v\u00e0 d\u1eadp. N\u00f3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh th\u00e9p l\u00e0m ngu\u1ed9i, l\u00e0m n\u00f3ng v\u00e0 th\u00e9p l\u00e0m khu\u00f4n nh\u1ef1a. C\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a n\u00f3\u2014kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n, \u0111\u1ed9 d\u1ebbo dai v\u00e0 kh\u1ea3 n\u0103ng duy tr\u00ec \u0111\u1ed9 c\u1ee9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao\u2014l\u00e0 do c\u00e1c nguy\u00ean t\u1ed1 h\u1ee3p kim nh\u01b0 cacbon, crom v\u00e0 vanadi. C\u00e1c c\u1ea5p \u0111\u00e1ng ch\u00fa \u00fd c\u1ee7a n\u00f3 bao g\u1ed3m D2, H13 v\u00e0 P20.<\/p><h2 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u1ee7a th\u00e9p khu\u00f4n<\/h2><ul class=\"wp-block-list\"><li><strong>Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao<\/strong>: C\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c tu\u1ed5i th\u1ecd d\u00e0i h\u01a1n l\u00ean \u0111\u1ebfn 50% so v\u1edbi th\u00e9p ti\u00eau chu\u1ea9n trong \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh t\u01b0\u01a1ng t\u1ef1.<\/li>\n\n<li><strong>\u0110\u1ed9 b\u1ec1n cao<\/strong>: C\u00e1c th\u1eed nghi\u1ec7m va \u0111\u1eadp Charpy cho th\u1ea5y gi\u00e1 tr\u1ecb dao \u0111\u1ed9ng t\u1eeb 30-50 J\/cm\u00b2, t\u00f9y thu\u1ed9c v\u00e0o c\u1ea5p \u0111\u1ed9, \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng ch\u1ed1ng n\u1ee9t ho\u1eb7c v\u1ee1 tuy\u1ec7t v\u1eddi d\u01b0\u1edbi t\u1ea3i tr\u1ecdng va \u0111\u1eadp c\u1ef1c l\u1edbn.<\/li>\n\n<li><strong>Duy tr\u00ec \u0111\u1ed9 c\u1ee9ng tuy\u1ec7t v\u1eddi \u1edf nhi\u1ec7t \u0111\u1ed9 cao<\/strong>: Gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng l\u00ean \u0111\u1ebfn 500\u00b0C (932\u00b0F) \u0111\u1ed1i v\u1edbi c\u00e1c lo\u1ea1i nh\u01b0 H13, l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng gia c\u00f4ng n\u00f3ng m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 b\u1ec1n.<\/li>\n\n<li><strong>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i<\/strong>: Th\u00e9p n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9 v\u00e0 ch\u1ed1ng h\u01b0 h\u1ecfng cao h\u01a1n th\u00e9p ti\u00eau chu\u1ea9n t\u1edbi 2-3 l\u1ea7n, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf c\u00e1c lo\u1ea1i th\u00e9p c\u1ea5p P20, do c\u00f3 ch\u1ee9a c\u00e1c nguy\u00ean t\u1ed1 h\u1ee3p kim crom v\u00e0 niken.<\/li>\n\n<li><strong>Kh\u1ea3 n\u0103ng x\u1eed l\u00fd nhi\u1ec7t v\u01b0\u1ee3t tr\u1ed9i<\/strong>: C\u00f3 kh\u1ea3 n\u0103ng \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng Rockwell C 50-60, v\u1edbi kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c trong qu\u00e1 tr\u00ecnh t\u00f4i luy\u1ec7n, cho ph\u00e9p t\u00f9y ch\u1ec9nh c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.<\/li>\n\n<li><strong>C\u01b0\u1eddng \u0111\u1ed9 n\u00e9n cao<\/strong>: C\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu \u00e1p su\u1ea5t v\u01b0\u1ee3t qu\u00e1 1000 MPa, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u00fac khu\u00f4n v\u00e0 d\u1eadp \u1ee9ng su\u1ea5t cao.<\/li><\/ul><h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i th\u00e9p khu\u00f4n<\/h2><p>Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang lo\u1ea1i th\u00e9p khu\u00f4n l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p kh\u00e1c nhau. D\u01b0\u1edbi \u0111\u00e2y, ch\u00fang t\u00f4i tr\u00ecnh b\u00e0y t\u1ed5ng quan chi ti\u1ebft v\u1ec1 c\u00e1c lo\u1ea1i th\u00e9p khu\u00f4n ph\u1ed5 bi\u1ebfn nh\u1ea5t, n\u00eau b\u1eadt c\u00e1c \u0111\u1eb7c t\u00ednh ch\u00ednh c\u1ee7a ch\u00fang.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Lo\u1ea1i<\/strong><\/td><td><strong>C\u1ea5p<\/strong><\/td><td><strong>Thu\u1ed9c t\u00ednh ch\u00ednh<\/strong><\/td><\/tr><tr><td rowspan=\"3\">Th\u00e9p gia c\u00f4ng ngu\u1ed9i<\/td><td>Ng\u00e0y 2<\/td><td>Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao, \u0111\u1ed9 c\u1ee9ng tuy\u1ec7t v\u1eddi v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc t\u1ed1t.<\/td><\/tr><tr><td>A2<\/td><td>Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc cao v\u00e0 gi\u1eef c\u1ea1nh t\u1ed1t.<\/td><\/tr><tr><td>S7<\/td><td>\u0110\u1ed9 b\u1ec1n cao, kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp tuy\u1ec7t v\u1eddi, l\u00fd t\u01b0\u1edfng cho t\u00e1c \u0111\u1ed9ng m\u1ea1nh v\u00e0 t\u1ea3i \u0111\u1ed9t ng\u1ed9t.<\/td><\/tr><tr><td>Th\u00e9p gia c\u00f4ng n\u00f3ng<\/td><td>H13<\/td><td>\u0110\u1ed9 d\u1eabn nhi\u1ec7t tuy\u1ec7t v\u1eddi, \u0111\u1ed9 b\u1ec1n cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t tuy\u1ec7t v\u1eddi.<\/td><\/tr><tr><td rowspan=\"2\">Khu\u00f4n nh\u1ef1a th\u00e9p<\/td><td>P20<\/td><td>Kh\u1ea3 n\u0103ng gia c\u00f4ng t\u1ed1t, \u0111\u1ed9 c\u1ee9ng b\u1ec1 m\u1eb7t cao v\u00e0 b\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n tuy\u1ec7t v\u1eddi.<\/td><\/tr><tr><td>NAK80<\/td><td>Kh\u1ea3 n\u0103ng gia c\u00f4ng v\u01b0\u1ee3t tr\u1ed9i, \u0111\u1ed9 c\u1ee9ng b\u1ec1 m\u1eb7t cao v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c tuy\u1ec7t v\u1eddi.<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c l\u1ef1a ch\u1ecdn th\u00e9p khu\u00f4n<\/h3><p>Khi ch\u1ecdn th\u00e9p khu\u00f4n, ch\u00fang t\u00f4i t\u1eadp trung v\u00e0o m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 ch\u00ednh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a m\u00ecnh. Bao g\u1ed3m nhi\u1ec7t \u0111\u1ed9 m\u00e0 khu\u00f4n s\u1ebd ph\u1ea3i \u0111\u1ed1i m\u1eb7t, m\u1ee9c \u0111\u1ed9 hao m\u00f2n m\u00e0 khu\u00f4n c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c v\u00e0 v\u1eadt li\u1ec7u c\u1ea7n ph\u1ea3i c\u1ee9ng nh\u01b0 th\u1ebf n\u00e0o.<\/p><p>V\u00ec <strong>nhi\u1ec7t \u0111\u1ed9 cao<\/strong> c\u00f4ng vi\u1ec7c, nh\u01b0 \u0111\u00fac khu\u00f4n, ch\u00fang t\u00f4i khuy\u00ean b\u1ea1n n\u00ean <strong>H13<\/strong> v\u00ec kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t tuy\u1ec7t v\u1eddi c\u1ee7a n\u00f3. \u0110\u1ed1i v\u1edbi <strong>c\u00f4ng vi\u1ec7c l\u1ea1nh<\/strong> gi\u1ed1ng nh\u01b0 \u0111\u00f3ng d\u1ea5u ho\u1eb7c c\u1eaft, <strong>Ng\u00e0y 2<\/strong> ho\u1eb7c <strong>A2<\/strong> l\u00e0 l\u00fd t\u01b0\u1edfng, v\u1edbi <strong>Ng\u00e0y 2<\/strong> cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao h\u01a1n v\u00e0 <strong>A2<\/strong> cung c\u1ea5p \u0111\u1ed9 d\u1ebbo dai t\u1ed1t h\u01a1n.<\/p><p>V\u00ec <strong>kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp<\/strong>, c\u00e1c <strong>S7<\/strong> l\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi \u0111\u1ed9 b\u1ec1n khi ch\u1ecbu va \u0111\u1eadp. \u0110\u1ed1i v\u1edbi <strong>\u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 b\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n<\/strong> trong khu\u00f4n nh\u1ef1a, <strong>P20<\/strong> V\u00e0 <strong>NAK80<\/strong> ho\u00e0n h\u1ea3o v\u00ec ch\u00fang d\u1ec5 gia c\u00f4ng v\u00e0 t\u1ea1o ra b\u1ec1 m\u1eb7t m\u1ecbn.<\/p><p>N\u1ebfu nh\u01b0 <strong>s\u1ef1 \u1ed5n \u0111\u1ecbnh v\u1ec1 k\u00edch th\u01b0\u1edbc<\/strong> l\u00e0 quan tr\u1ecdng, <strong>A2<\/strong> gi\u1eef nguy\u00ean h\u00ecnh d\u1ea1ng t\u1ed1t \u1edf nhi\u1ec1u nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau.<\/p><p>H\u00e3y \u0111\u1ec3 ch\u00fang t\u00f4i gi\u00fap b\u1ea1n l\u1ef1a ch\u1ecdn lo\u1ea1i th\u00e9p khu\u00f4n ho\u00e0n h\u1ea3o cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n\u2014h\u00e3y li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i ngay h\u00f4m nay \u0111\u1ec3 t\u00ecm gi\u1ea3i ph\u00e1p t\u1ed1t nh\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.<\/p><h2 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng c\u1ee7a th\u00e9p khu\u00f4n l\u00e0 g\u00ec?<\/h2><p>Th\u00e9p khu\u00f4n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 cao, bao g\u1ed3m:<\/p><ul class=\"wp-block-list\"><li><strong>D\u1eadp kim lo\u1ea1i<\/strong>: Ph\u1ee5 t\u00f9ng \u00f4 t\u00f4 v\u00e0 thi\u1ebft b\u1ecb gia d\u1ee5ng.<\/li>\n\n<li><strong>\u00c9p phun<\/strong>: Khu\u00f4n nh\u1ef1a v\u00e0 cao su.<\/li>\n\n<li><strong>\u0110\u00fac khu\u00f4n<\/strong>: Khu\u00f4n \u0111\u00fac nh\u00f4m, k\u1ebdm v\u00e0 c\u00e1c kim lo\u1ea1i kh\u00e1c.<\/li>\n\n<li><strong>Khu\u00f4n r\u00e8n<\/strong>: C\u00e1c th\u00e0nh ph\u1ea7n nh\u01b0 b\u00e1nh r\u0103ng v\u00e0 tr\u1ee5c.<\/li>\n\n<li><strong>Khu\u00f4n \u0111\u00f9n<\/strong>: C\u00e1c h\u00ecnh d\u1ea1ng kim lo\u1ea1i nh\u01b0 \u1ed1ng v\u00e0 thanh.<\/li><\/ul><h2 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa th\u00e9p khu\u00f4n v\u00e0 th\u00e9p d\u1ee5ng c\u1ee5 l\u00e0 g\u00ec?<\/h2><p>Th\u00e9p khu\u00f4n l\u00e0 m\u1ed9t lo\u1ea1i th\u00e9p c\u00f4ng c\u1ee5, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t cho \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 cao, mang l\u1ea1i \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n \u0111\u1eb7c bi\u1ec7t. M\u1eb7c d\u00f9 c\u1ea3 hai \u0111\u1ec1u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00f4ng c\u1ee5, th\u00e9p khu\u00f4n \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho c\u00e1c quy tr\u00ecnh ch\u1ecbu t\u1ea3i n\u1eb7ng nh\u01b0 d\u1eadp, trong khi th\u00e9p c\u00f4ng c\u1ee5 linh ho\u1ea1t h\u01a1n.<\/p><h2 class=\"wp-block-heading\">\u0110i\u1ec1u g\u00ec t\u1ea1o n\u00ean s\u1ef1 kh\u00e1c bi\u1ec7t c\u1ee7a th\u00e9p khu\u00f4n?<\/h2><h3 class=\"wp-block-heading\">Th\u00e0nh ph\u1ea7n h\u1ee3p kim<\/h3><p><strong>H\u00e0m l\u01b0\u1ee3ng Carbon cao<\/strong>:Th\u00e9p khu\u00f4n th\u01b0\u1eddng c\u00f3 h\u00e0m l\u01b0\u1ee3ng cacbon cao h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p c\u00f4ng c\u1ee5 kh\u00e1c, gi\u00fap t\u0103ng c\u01b0\u1eddng <strong>\u0111\u1ed9 c\u1ee9ng<\/strong> V\u00e0 <strong>kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n<\/strong>.<\/p><p><strong>Crom v\u00e0 Vanadi<\/strong>: Crom c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 duy tr\u00ec \u0111\u1ed9 c\u1ee9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao, trong khi vanadi t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n.<\/p><p><strong>Molipden<\/strong>: C\u00f3 trong m\u1ed9t s\u1ed1 th\u00e9p khu\u00f4n l\u00e0m vi\u1ec7c n\u00f3ng, molypden t\u0103ng l\u00ean <strong>s\u1ee9c m\u1ea1nh nhi\u1ec7t \u0111\u1ed9 cao<\/strong> V\u00e0 <strong>kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t<\/strong>, khi\u1ebfn ch\u00fang tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng r\u00e8n n\u00f3ng v\u00e0 \u0111\u00fac khu\u00f4n.<\/p><h3 class=\"wp-block-heading\">X\u1eed l\u00fd nhi\u1ec7t<\/h3><p>Th\u00e9p khu\u00f4n tr\u1ea3i qua <strong>x\u1eed l\u00fd nhi\u1ec7t ch\u00ednh x\u00e1c<\/strong> \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 d\u1ebbo dai v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t c\u1ee7a n\u00f3. Quy tr\u00ecnh n\u00e0y th\u01b0\u1eddng bao g\u1ed3m:<\/p><p><strong>L\u00e0m c\u1ee9ng<\/strong>:Th\u00e9p \u0111\u01b0\u1ee3c nung t\u1edbi nhi\u1ec7t \u0111\u1ed9 t\u1eeb 800\u00b0C \u0111\u1ebfn 1050\u00b0C (1472\u00b0F \u0111\u1ebfn 1922\u00b0F), sau \u0111\u00f3 l\u00e0m ngu\u1ed9i nhanh, t\u1ea1o th\u00e0nh pha martensitic c\u1ee9ng, t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n.<\/p><p><strong>L\u00e0m ngu\u1ed9i<\/strong>:Th\u00e9p \u0111\u01b0\u1ee3c nung l\u1ea1i \u1edf nhi\u1ec7t \u0111\u1ed9 150\u00b0C \u0111\u1ebfn 650\u00b0C (302\u00b0F \u0111\u1ebfn 1202\u00b0F) \u0111\u1ec3 gi\u1ea3m \u1ee9ng su\u1ea5t b\u00ean trong v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1ebbo dai trong khi v\u1eabn gi\u1eef nguy\u00ean \u0111\u1ed9 c\u1ee9ng.<\/p><p><strong>L\u00e0m c\u1ee9ng b\u1eb1ng l\u01b0\u1ee3ng m\u01b0a:<\/strong> M\u1ed9t s\u1ed1 lo\u1ea1i th\u00e9p khu\u00f4n, nh\u01b0 th\u00e9p d\u00f9ng \u0111\u1ec3 \u0111\u00fac nh\u1ef1a, \u0111\u01b0\u1ee3c t\u00f4i luy\u1ec7n b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p k\u1ebft t\u1ee7a v\u1edbi c\u00e1c nguy\u00ean t\u1ed1 nh\u01b0 \u0111\u1ed3ng ho\u1eb7c nh\u00f4m \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ecfi.<\/p><h2 class=\"wp-block-heading\">T\u00ecm lo\u1ea1i th\u00e9p khu\u00f4n ho\u00e0n h\u1ea3o cho nhu c\u1ea7u c\u00f4ng nghi\u1ec7p c\u1ee7a b\u1ea1n<\/h2><p>T\u1ea1i SteelPro Group, ch\u00fang t\u00f4i cung c\u1ea5p nhi\u1ec1u lo\u1ea1i th\u00e9p khu\u00f4n ch\u1ea5t l\u01b0\u1ee3ng cao, bao g\u1ed3m D2, H13 v\u00e0 P20, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p c\u1ee7a b\u1ea1n. H\u00e3y li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i ngay h\u00f4m nay \u0111\u1ec3 th\u1ea3o lu\u1eadn v\u1ec1 nhu c\u1ea7u d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n v\u00e0 \u0111\u1ec3 c\u00e1c chuy\u00ean gia c\u1ee7a ch\u00fang t\u00f4i gi\u00fap b\u1ea1n l\u1ef1a ch\u1ecdn gi\u1ea3i ph\u00e1p th\u00e9p khu\u00f4n l\u00fd t\u01b0\u1edfng \u0111\u1ec3 n\u00e2ng cao hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd d\u1ee5ng c\u1ee5 c\u1ee7a b\u1ea1n.<\/p>","protected":false},"excerpt":{"rendered":"<p>L\u00e0 m\u1ed9t chuy\u00ean gia to\u00e0n c\u1ea7u v\u1ec1 s\u1ea3n xu\u1ea5t th\u00e9p, SteelPro Group nh\u1eadn ra t\u1ea7m quan tr\u1ecdng c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe. \u0110i\u1ec1u n\u00e0y [\u2026]<\/p>","protected":false},"author":12,"featured_media":20193,"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":""},"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":[4301,4293],"tags":[],"class_list":["post-20198","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-tool-steel","category-tool-steel"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/20198","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\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/comments?post=20198"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/20198\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/20193"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=20198"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=20198"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=20198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}