{"id":20043,"date":"2024-12-24T11:37:00","date_gmt":"2024-12-24T03:37:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=20043"},"modified":"2025-01-14T14:23:15","modified_gmt":"2025-01-14T06:23:15","slug":"m2","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/tool-steel\/grades\/m2\/","title":{"rendered":"Th\u00e9p c\u00f4ng c\u1ee5 t\u1ed1c \u0111\u1ed9 cao M2: T\u00ednh ch\u1ea5t, quy tr\u00ecnh, c\u00f4ng d\u1ee5ng"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Th\u00e9p c\u00f4ng c\u1ee5 M2 l\u00e0 g\u00ec?<\/h2><p>Th\u00e9p c\u00f4ng c\u1ee5 M2 l\u00e0 h\u1ee3p kim th\u00e9p t\u1ed1c \u0111\u1ed9 cao (HSS) \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb vonfram v\u00e0 molypden, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa \u0111\u1ed9 d\u1ebbo dai, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 c\u1ee9ng \u0111\u1ecf. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c c\u00f4ng c\u1ee5 c\u1eaft nh\u01b0 m\u0169i khoan, dao phay \u0111\u1ea7u, v\u00f2i v\u00e0 l\u01b0\u1ee1i c\u01b0a, c\u0169ng nh\u01b0 khu\u00f4n v\u00e0 \u0111\u1ed9t d\u1eadp ngu\u1ed9i. So v\u1edbi th\u00e9p c\u00f4ng c\u1ee5 T1, M2 mang l\u1ea1i hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c \u1ee9ng d\u1ee5ng c\u1eaft t\u1ed1c \u0111\u1ed9 cao v\u00e0 nh\u1eb9.<\/p><p>Th\u00e9p c\u00f4ng c\u1ee5 M2 c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 c\u00f3 hi\u1ec7u su\u1ea5t cao trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe, mang l\u1ea1i \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i. N\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 v\u01b0\u1ee3t tr\u1ed9i trong vi\u1ec7c c\u1eaft, \u0111\u1ee5c l\u1ed7 v\u00e0 \u0111\u00fac t\u1ed1c \u0111\u1ed9 cao, \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 \u0111\u00e1ng tin c\u1eady v\u00e0 ch\u00ednh x\u00e1c.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p c\u00f4ng c\u1ee5 M2 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi c\u00e1i g\u00ec?<\/h2><p>B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y li\u1ec7t k\u00ea c\u00e1c m\u00e3 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng cho th\u00e9p c\u00f4ng c\u1ee5 M2 theo nhi\u1ec1u th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt.<\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Ti\u00eau chu\u1ea9n<\/strong><\/td><td><strong>M\u00e3 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng<\/strong><\/td><\/tr><tr><td>Anh<\/td><td>W6Mo5Cr4V2<\/td><\/tr><tr><td>ISC<\/td><td>T66542<\/td><\/tr><tr><td>Ti\u00eau chu\u1ea9n ASTM<\/td><td>M2<\/td><\/tr><tr><td>Li\u00ean Hi\u1ec7p Qu\u1ed1c<\/td><td>T11302<\/td><\/tr><tr><td>DIN EN\/DIN<\/td><td>1.3343<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 M2&nbsp;<\/h2><p>Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 M2 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a \u0111\u1ed9 c\u1ee9ng, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 hi\u1ec7u su\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao. H\u00e0m l\u01b0\u1ee3ng vonfram (W) v\u00e0 molypden (Mo) cao gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t, trong khi crom (Cr) v\u00e0 vanadi (V) c\u1ea3i thi\u1ec7n \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1eb7c t\u00ednh ch\u1ed1ng m\u00e0i m\u00f2n.&nbsp;<\/p><p>B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y cung c\u1ea5p th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc chi ti\u1ebft c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 M2.<\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Y\u1ebfu t\u1ed1<\/strong><\/td><td><strong>Th\u00e0nh ph\u1ea7n (%)<\/strong><\/td><\/tr><tr><td rowspan=\"2\">Cacbon (C)<\/td><td>0,78 \u2013 0,88 (\u0110i\u1ec1u ch\u1ec9nh C)<\/td><\/tr><tr><td>0,95 \u2013 1,05 (C cao)<\/td><\/tr><tr><td>Crom (Cr)<\/td><td>3.75 &#8211; 4.5<\/td><\/tr><tr><td>S\u1eaft (Fe)<\/td><td>78 &#8211; 82.4<\/td><\/tr><tr><td>Mangan (Mn)<\/td><td>0.15 &#8211; 0.40<\/td><\/tr><tr><td>Molip\u0111en (Mo)<\/td><td>4.5 &#8211; 5.5<\/td><\/tr><tr><td>Niken (Ni)<\/td><td>\u2264 0,30<\/td><\/tr><tr><td>Silic (Si)<\/td><td>0.20 &#8211; 0.45<\/td><\/tr><tr><td>Vonfram (W)<\/td><td>5.5 &#8211; 6.75<\/td><\/tr><tr><td>Vanadi (V)<\/td><td>1.75 &#8211; 2.2<\/td><\/tr><\/tbody><\/table><\/figure><p>Phi\u00ean b\u1ea3n M2 c\u00f3 h\u00e0m l\u01b0\u1ee3ng carbon cao (0,95 \u2013 1,05%) mang l\u1ea1i \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao h\u01a1n, trong khi phi\u00ean b\u1ea3n carbon th\u00f4ng th\u01b0\u1eddng (0,78 \u2013 0,88%) mang l\u1ea1i \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n.<\/p><h2 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 M2<\/h2><p>Th\u00e9p c\u00f4ng c\u1ee5 M2 c\u00f3 m\u1eadt \u0111\u1ed9 cao v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t t\u1ed1t, ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao. \u0110\u1ed9 gi\u00e3n n\u1edf nhi\u1ec7t v\u00e0 \u0111i\u1ec7n tr\u1edf su\u1ea5t t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p c\u1ee7a n\u00f3 c\u00e0ng l\u00e0m t\u0103ng hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3 trong c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 khu\u00f4n ch\u00ednh x\u00e1c. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y ph\u00e1c th\u1ea3o c\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd ch\u00ednh c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 M2.<\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>H\u1ec7 m\u00e9t<\/strong><\/td><td><strong>\u0110\u1ebf qu\u1ed1c<\/strong><\/td><\/tr><tr><td>T\u1ec9 tr\u1ecdng<\/td><td>8,14g\/cm\u00b3<\/td><td>0,294 lb\/in\u00b3<\/td><\/tr><tr><td>\u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/td><td>1.420 \u2013 1.470\u00b0C<\/td><td>2.588 \u2013 2.678\u00b0F<\/td><\/tr><tr><td>Nhi\u1ec7t dung ri\u00eang<\/td><td>460 J\/kg\u00b7K<\/td><td>0,110 BTU\/lb\u00b7\u00b0F<\/td><\/tr><tr><td>\u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/td><td>25 W\/m\u00b7K<\/td><td>17,2 BTU\/gi\u1edd\u00b7ft\u00b7\u00b0F<\/td><\/tr><tr><td>H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t<\/td><td>5,5 \u00d7 10\u207b\u2076 \/\u00b0C<\/td><td>3,1 \u00d7 10\u207b\u2076 \/\u00b0F<\/td><\/tr><tr><td>\u0110i\u1ec7n tr\u1edf su\u1ea5t<\/td><td>0,58 \u00b5\u03a9\u00b7m<\/td><td>0,58 \u00b5\u03a9\u00b7m<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 M2\u00a0<\/h2><p>Th\u00e9p c\u00f4ng c\u1ee5 M2 \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 c\u1ee9ng cao, gi\u00fap ch\u1ed1ng bi\u1ebfn d\u1ea1ng v\u00e0 m\u00e0i m\u00f2n. N\u00f3 c\u0169ng c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 linh ho\u1ea1t t\u1ed1t, gi\u00fap n\u00f3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng v\u00e0 \u1ee9ng su\u1ea5t. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y hi\u1ec3n th\u1ecb c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 M2.<\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>H\u1ec7 m\u00e9t<\/strong><\/td><td><strong>\u0110\u1ebf qu\u1ed1c<\/strong><\/td><\/tr><tr><td>\u0110\u1ed9 c\u1ee9ng (HRC)<\/td><td>62 \u2013 65HRC<\/td><td>62 \u2013 65HRC<\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n k\u00e9o<\/td><td>1.800 \u2013 2.100MPa<\/td><td>261.000 \u2013 304.500 psi<\/td><\/tr><tr><td>S\u1ee9c ch\u1ecbu l\u1ef1c<\/td><td>1.400 \u2013 1.700MPa<\/td><td>203.000 \u2013 246.500 psi<\/td><\/tr><tr><td>\u0110\u1ed9 gi\u00e3n d\u00e0i<\/td><td>4 &#8211; 8 %<\/td><td>4 &#8211; 8 %<\/td><\/tr><tr><td>M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i<\/td><td>210 GPa<\/td><td>30.500 kil\u00f4gam<\/td><\/tr><tr><td>T\u1ef7 s\u1ed1 Poisson<\/td><td>0.27 &#8211; 0.30<\/td><td>0.27 &#8211; 0.30<\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n va \u0111\u1eadp (Charpy V-Notch)<\/td><td>10 \u2013 30J<\/td><td>7,4 \u2013 22,1 ft-lb<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">X\u1eed l\u00fd nhi\u1ec7t th\u00e9p c\u00f4ng c\u1ee5 M2<\/h2><p>SteelPro Group tu\u00e2n theo quy tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t ch\u00ednh x\u00e1c v\u00e0 chu\u1ea9n h\u00f3a cho th\u00e9p c\u00f4ng c\u1ee5 M2, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 d\u1ebbo dai v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1i \u01b0u \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u v\u1ec1 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ng\u00e0nh. C\u00e1c ph\u1ea7n sau \u0111\u00e2y ph\u00e1c th\u1ea3o c\u00e1c giai \u0111o\u1ea1n ch\u00ednh c\u1ee7a quy tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t th\u00e9p c\u00f4ng c\u1ee5 M2, t\u1eeb \u1ee7 \u0111\u1ebfn l\u00e0m ngu\u1ed9i v\u00e0 ram.<\/p><h3 class=\"wp-block-heading\">\u1ee6<\/h3><p>L\u00e0m n\u00f3ng \u1edf t\u1ed1c \u0111\u1ed9 kh\u00f4ng qu\u00e1 222\u00b0C m\u1ed9t gi\u1edd (400\u00b0F m\u1ed9t gi\u1edd) \u0111\u1ebfn 829-843\u00b0C (1525-1550\u00b0F) v\u00e0 gi\u1eef \u1edf nhi\u1ec7t \u0111\u1ed9 n\u00e0y trong 1 gi\u1edd cho m\u1ed7i 25,44mm (1 inch) \u0111\u1ed9 d\u00e0y, v\u1edbi th\u1eddi gian t\u1ed1i thi\u1ec3u l\u00e0 2 gi\u1edd.<\/p><p>Sau khi gi\u1eef, l\u00e0m ngu\u1ed9i t\u1eeb t\u1eeb trong l\u00f2 v\u1edbi t\u1ed1c \u0111\u1ed9 kh\u00f4ng qu\u00e1 28\u00b0C m\u1ed9t gi\u1edd (50\u00b0F m\u1ed9t gi\u1edd) cho \u0111\u1ebfn khi \u0111\u1ea1t 538\u00b0C (1000\u00b0F), sau \u0111\u00f3 ti\u1ebfp t\u1ee5c l\u00e0m ngu\u1ed9i trong l\u00f2 ho\u1eb7c ngo\u00e0i kh\u00f4ng kh\u00ed cho \u0111\u1ebfn khi \u0111\u1ea1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng.<\/p><h3 class=\"wp-block-heading\">L\u00e0m c\u1ee9ng<\/h3><h4 class=\"wp-block-heading\">L\u00e0m n\u00f3ng tr\u01b0\u1edbc<\/h4><p><strong>D\u00e0nh cho c\u00e1c c\u00f4ng c\u1ee5 c\u00f3 h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p<\/strong>: L\u00e0m n\u00f3ng \u1edf t\u1ed1c \u0111\u1ed9 kh\u00f4ng qu\u00e1 222\u00b0C m\u1ed9t gi\u1edd (400\u00b0F m\u1ed9t gi\u1edd) \u0111\u1ebfn 593\u00b0C (1100\u00b0F), sau \u0111\u00f3 ti\u1ebfp t\u1ee5c l\u00e0m n\u00f3ng \u0111\u1ec1u \u0111\u1ebfn 788-843\u00b0C (1450-1550\u00b0F).&nbsp;<\/p><p><strong>\u0110\u1ed1i v\u1edbi c\u00e1c c\u00f4ng c\u1ee5 c\u00f3 h\u00ecnh d\u1ea1ng \u0111\u01a1n gi\u1ea3n<\/strong>: L\u00e0m n\u00f3ng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn 800\u2103 v\u1edbi t\u1ed1c \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u.<\/p><h4 class=\"wp-block-heading\">Austen h\u00f3a<\/h4><p>Sau khi nung n\u00f3ng tr\u01b0\u1edbc, th\u00e9p c\u00f4ng c\u1ee5 M2 \u0111\u01b0\u1ee3c nung n\u00f3ng \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 austenizing mong mu\u1ed1n \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a n\u00f3. Nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n t\u1ed1i \u0111a h\u00f3a \u0111\u1ed9 d\u1ebbo dai, trong khi nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 c\u1ee9ng n\u00f3ng \u0111\u1ec3 c\u00f3 hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n \u1edf nhi\u1ec7t \u0111\u1ed9 cao.&nbsp;<\/p><p><strong>\u0110\u1ec3 c\u00f3 \u0111\u1ed9 b\u1ec1n t\u1ed1i \u0111a:<\/strong><\/p><p>\u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 d\u1ebbo dai t\u1ed1t nh\u1ea5t m\u00e0 kh\u00f4ng c\u1ea7n ch\u00fa tr\u1ecdng \u0111\u1ebfn \u0111\u1ed9 c\u1ee9ng khi n\u00f3ng, th\u00e9p n\u00ean \u0111\u01b0\u1ee3c nung \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat:<\/p><ul class=\"wp-block-list\"><li>L\u00e0m n\u00f3ng l\u00f2: L\u00e0m n\u00f3ng \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 2075\u00b0F \u0111\u1ebfn 2175\u00b0F (1175\u00b0C \u0111\u1ebfn 1191\u00b0C).<\/li>\n\n<li>L\u00e0m n\u00f3ng b\u1eb1ng b\u1ed3n mu\u1ed1i: L\u00e0m n\u00f3ng \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 2050\u00b0F \u0111\u1ebfn 2150\u00b0F (1121\u00b0C \u0111\u1ebfn 1177\u00b0C).<\/li><\/ul><p>Ph\u1ea1m vi n\u00e0y \u0111\u1ea3m b\u1ea3o th\u00e9p c\u1ee9ng v\u00e0 \u0111\u00e0n h\u1ed3i, l\u00fd t\u01b0\u1edfng cho <strong>c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 \u0111\u1ea5m v\u00e0 khu\u00f4n<\/strong> n\u01a1i m\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng.<\/p><p><strong>\u0110\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 c\u1ee9ng n\u00f3ng:<\/strong><\/p><p>N\u1ebfu m\u1ee5c ti\u00eau l\u00e0 t\u1ed1i \u0111a h\u00f3a \u0111\u1ed9 c\u1ee9ng n\u00f3ng (kh\u1ea3 n\u0103ng duy tr\u00ec \u0111\u1ed9 c\u1ee9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao), b\u1ea1n n\u00ean nung th\u00e9p \u0111\u1ebfn m\u1ee9c nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n:<\/p><ul class=\"wp-block-list\"><li>L\u00e0m n\u00f3ng l\u00f2: L\u00e0m n\u00f3ng \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 2200\u00b0F \u0111\u1ebfn 2250\u00b0F (1204\u00b0C \u0111\u1ebfn 1232\u00b0C).<\/li>\n\n<li>L\u00e0m n\u00f3ng b\u1eb1ng b\u1ed3n mu\u1ed1i: L\u00e0m n\u00f3ng \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 2175\u00b0F \u0111\u1ebfn 2225\u00b0F (1191\u00b0C \u0111\u1ebfn 1218\u00b0C).<\/li><\/ul><p>\u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o th\u00e9p gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng v\u00e0 hi\u1ec7u su\u1ea5t d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 cao, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho <strong>d\u1ee5ng c\u1ee5 c\u1eaft ph\u1ea3i ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao<\/strong> trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng.<\/p><h4 class=\"wp-block-heading\">L\u00e0m ngu\u1ed9i<\/h4><p><strong>Kh\u00ed n\u00e9n<\/strong>:<\/p><p>L\u00e0m ngu\u1ed9i trong kh\u00ed n\u00e9n \u0111\u00f2i h\u1ecfi t\u1ed1c \u0111\u1ed9 l\u00e0m ngu\u1ed9i nhanh, duy tr\u00ec \u1edf m\u1ee9c d\u01b0\u1edbi 538\u00b0C (1000\u00b0F). \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o t\u1ed1c \u0111\u1ed9 l\u00e0m ngu\u1ed9i nhanh, th\u00fac \u0111\u1ea9y s\u1ef1 h\u00ecnh th\u00e0nh martensit v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 c\u1ee9ng.&nbsp;<\/p><p><strong>D\u1ea7u<\/strong>:<\/p><p>L\u00e0m ngu\u1ed9i \u0111\u1ebfn \u0111en (kho\u1ea3ng 482\u00b0C ho\u1eb7c 900\u00b0F), sau \u0111\u00f3 l\u00e0m ngu\u1ed9i trong kh\u00f4ng kh\u00ed t\u0129nh \u0111\u1ebfn 66-51\u00b0C (150-125\u00b0F). L\u00e0m ngu\u1ed9i b\u1eb1ng d\u1ea7u cung c\u1ea5p t\u1ed1c \u0111\u1ed9 l\u00e0m ngu\u1ed9i \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t gi\u00fap gi\u1ea3m thi\u1ec3u bi\u1ebfn d\u1ea1ng v\u00e0 n\u1ee9t.<\/p><p><strong>T\u1eafm mu\u1ed1i<\/strong>:<\/p><p>L\u00e0m ngu\u1ed9i trong b\u1ed3n n\u01b0\u1edbc mu\u1ed1i \u1edf nhi\u1ec7t \u0111\u1ed9 t\u1eeb 538-593\u00b0C (1000-1100\u00b0F), sau \u0111\u00f3 l\u00e0m ngu\u1ed9i trong kh\u00f4ng kh\u00ed t\u0129nh \u0111\u1ebfn 150-125\u00b0F (66-51\u00b0C).&nbsp;<\/p><h3 class=\"wp-block-heading\">L\u00e0m ngu\u1ed9i<\/h3><p>Qu\u00e1 tr\u00ecnh t\u00f4i luy\u1ec7n n\u00ean \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n ngay sau khi t\u00f4i, v\u00ec n\u00f3 l\u00e0m gi\u1ea3m \u1ee9ng su\u1ea5t b\u00ean trong v\u00e0 gi\u1ea3m \u0111\u1ed9 gi\u00f2n. L\u00e0m n\u00f3ng \u0111\u1ebfn 552-566\u00b0C (1025-1050\u00b0F) v\u00e0 gi\u1eef trong \u00edt nh\u1ea5t 1 gi\u1edd cho m\u1ed7i 25,44mm (1 inch) \u0111\u1ed9 d\u00e0y. \u0110\u1ed9 c\u1ee9ng cu\u1ed1i c\u00f9ng sau khi t\u00f4i luy\u1ec7n s\u1ebd n\u1eb1m trong kho\u1ea3ng HRC 59-62, t\u00f9y thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9 t\u00f4i luy\u1ec7n c\u1ee5 th\u1ec3.<\/p><h2 class=\"wp-block-heading\">H\u00ecnh d\u1ea1ng s\u1ea3n ph\u1ea9m th\u00e9p c\u00f4ng c\u1ee5 M2<\/h2><p>Ph\u1ea7n sau \u0111\u00e2y cung c\u1ea5p t\u00e0i li\u1ec7u tham kh\u1ea3o v\u1ec1 c\u00e1c d\u1ea1ng s\u1ea3n ph\u1ea9m ph\u1ed5 bi\u1ebfn v\u00e0 ph\u1ea1m vi k\u00edch th\u01b0\u1edbc c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 M2. Ch\u00fang t\u00f4i c\u0169ng chuy\u00ean s\u1ea3n xu\u1ea5t c\u00e1c k\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh ngo\u00e0i ph\u1ea1m vi th\u00f4ng th\u01b0\u1eddng, cung c\u1ea5p s\u1ef1 linh ho\u1ea1t \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 k\u00edch th\u01b0\u1edbc c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n v\u1edbi dung sai ch\u1eb7t ch\u1ebd \u0111\u1ec3 c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c t\u1ed1i \u0111a.<\/p><h3 class=\"wp-block-heading\">Thanh<\/h3><p><strong>\u0110\u01b0\u1eddng k\u00ednh<\/strong>: 10 mm \u0111\u1ebfn 300 mm (0,4 in \u0111\u1ebfn 12 in)<\/p><p><strong>Chi\u1ec1u d\u00e0i<\/strong>: 100 mm \u0111\u1ebfn 3000 mm (4 in \u0111\u1ebfn 236 in)<\/p><h3 class=\"wp-block-heading\">\u0110\u0129a<\/h3><p><strong>\u0110\u1ed9 d\u00e0y<\/strong>: 5 mm \u0111\u1ebfn 100 mm (0,2 in \u0111\u1ebfn 4 in)<\/p><p><strong>Chi\u1ec1u r\u1ed9ng<\/strong>: 100 mm \u0111\u1ebfn 1000 mm (4 in \u0111\u1ebfn 40 in)<\/p><p><strong>Chi\u1ec1u d\u00e0i<\/strong>: 100 mm \u0111\u1ebfn 3000 mm (4 in \u0111\u1ebfn 118 in)<\/p><h3 class=\"wp-block-heading\">V\u00f2ng tr\u00f2n<\/h3><p><strong>\u0110\u01b0\u1eddng k\u00ednh<\/strong>: 10 mm \u0111\u1ebfn 150 mm (0,4 in \u0111\u1ebfn 6 in)<\/p><p><strong>Chi\u1ec1u d\u00e0i<\/strong>: 100 mm \u0111\u1ebfn 3000 mm (4 in \u0111\u1ebfn 157 in)<\/p><h3 class=\"wp-block-heading\">Thanh ph\u1eb3ng<\/h3><p><strong>\u0110\u1ed9 d\u00e0y<\/strong>: 5 mm \u0111\u1ebfn 100 mm (0,2 in \u0111\u1ebfn 4 in)<\/p><p><strong>Chi\u1ec1u r\u1ed9ng<\/strong>: 50 mm \u0111\u1ebfn 300 mm (2 in \u0111\u1ebfn 12 in)<\/p><h3 class=\"wp-block-heading\">Ph\u00f4i c\u00f4ng c\u1ee5<\/h3><p><strong>\u0110\u1ed9 d\u00e0y<\/strong>: 10 mm \u0111\u1ebfn 100 mm (0,4 in \u0111\u1ebfn 4 in)<\/p><p><strong>Chi\u1ec1u r\u1ed9ng<\/strong>: 50 mm \u0111\u1ebfn 300 mm (2 in \u0111\u1ebfn 12 in)<\/p><h2 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng th\u00e9p c\u00f4ng c\u1ee5 M2<\/h2><p>M2 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong khu\u00f4n \u0111\u00fac khu\u00f4n, khu\u00f4n r\u00e8n n\u00f3ng v\u00e0 khu\u00f4n \u0111\u00f9n, d\u1ee5ng c\u1ee5 \u00e9p phun, khu\u00f4n c\u1eaft v\u00e0 \u00e9p phun, khu\u00f4n nh\u1ef1a, khu\u00f4n l\u0103n, s\u1ea3n xu\u1ea5t c\u00e1nh tua bin v\u00e0 d\u1ee5ng c\u1ee5 x\u1eed l\u00fd nhi\u1ec7t.<\/p><h2 class=\"wp-block-heading\">S\u1ea3n ph\u1ea9m v\u00e0 d\u1ecbch v\u1ee5 th\u00e9p c\u00f4ng c\u1ee5 M2<\/h2><p>T\u1ea1i SteelPro Group, ch\u00fang t\u00f4i cung c\u1ea5p nhi\u1ec1u lo\u1ea1i s\u1ea3n ph\u1ea9m th\u00e9p c\u00f4ng c\u1ee5 M2, bao g\u1ed3m thanh, que v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn t\u00f9y ch\u1ec9nh. Ch\u00fang t\u00f4i c\u0169ng cung c\u1ea5p c\u00e1c t\u00f9y ch\u1ecdn x\u1eed l\u00fd theo y\u00eau c\u1ea7u nh\u01b0 c\u1eaft ch\u00ednh x\u00e1c, m\u00e0i v\u00e0 x\u1eed l\u00fd nhi\u1ec7t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a b\u1ea1n \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n cao nh\u1ea5t.<\/p><p>Ngo\u00e0i M2, ch\u00fang t\u00f4i cung c\u1ea5p <a href=\"https:\/\/steelprogroup.com\/vi\/tool-steel\/h13\/\">Th\u00e9p H13<\/a> cho c\u00e1c \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao, cung c\u1ea5p \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. V\u1edbi s\u1ef1 h\u1ed7 tr\u1ee3 c\u1ee7a chuy\u00ean gia v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p \u0111\u00e1ng tin c\u1eady, ch\u00fang t\u00f4i gi\u00fap b\u1ea1n t\u1ed1i \u01b0u h\u00f3a s\u1ea3n xu\u1ea5t v\u00e0 gi\u1ea3m th\u1eddi gian ch\u1ebft.&nbsp;<\/p><p><\/p>","protected":false},"excerpt":{"rendered":"<p>Th\u00e9p c\u00f4ng c\u1ee5 M2 l\u00e0 g\u00ec? Th\u00e9p c\u00f4ng c\u1ee5 M2 l\u00e0 h\u1ee3p kim th\u00e9p t\u1ed1c \u0111\u1ed9 cao (HSS) \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb vonfram v\u00e0 molypden, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 [\u2026]<\/p>","protected":false},"author":12,"featured_media":20039,"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":[4294,4293],"tags":[],"class_list":["post-20043","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-grades-tool-steel","category-tool-steel"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/20043","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=20043"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/20043\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/20039"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=20043"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=20043"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=20043"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}