{"id":20071,"date":"2024-12-25T08:41:00","date_gmt":"2024-12-25T00:41:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=20071"},"modified":"2025-01-14T13:44:00","modified_gmt":"2025-01-14T05:44:00","slug":"cpm-20cv","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/tool-steel\/grades\/cpm-20cv\/","title":{"rendered":"Kh\u00e1m ph\u00e1 th\u00e9p CPM 20CV: T\u00ednh ch\u1ea5t, quy tr\u00ecnh, c\u00f4ng d\u1ee5ng"},"content":{"rendered":"<p>SteelPro Group \u0111\u00e3 \u0111i \u0111\u1ea7u trong vi\u1ec7c cung c\u1ea5p c\u00e1c v\u1eadt li\u1ec7u h\u00e0ng \u0111\u1ea7u nh\u01b0 th\u00e9p CPM 20CV trong h\u01a1n m\u01b0\u1eddi n\u0103m. Cho d\u00f9 \u0111\u00f3 l\u00e0 t\u1ea5m, thanh hay c\u00e1c gi\u1ea3i ph\u00e1p t\u00f9y ch\u1ec9nh, ch\u00fang t\u00f4i lu\u00f4n \u1edf \u0111\u00e2y \u0111\u1ec3 gi\u00fap b\u1ea1n \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau c\u1ee7a m\u00ecnh m\u1ed9t c\u00e1ch t\u1ef1 tin v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p CPM 20CV l\u00e0 g\u00ec?<\/h2><p>Th\u00e9p CPM 20CV l\u00e0 th\u00e9p c\u00f4ng c\u1ee5 kh\u00f4ng g\u1ec9 luy\u1ec7n kim b\u1ed9t hi\u1ec7u su\u1ea5t cao, \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i l\u00e0 th\u00e9p martensitic c\u00f3 h\u00e0m l\u01b0\u1ee3ng vanadi cao \u0111\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n \u0111\u1eb7c bi\u1ec7t. N\u00f3 c\u00f3 c\u1ea5u tr\u00fac h\u1ea1t m\u1ecbn, cacbua nh\u1ecf v\u00e0 \u0111\u1ed9 s\u1ea1ch v\u01b0\u1ee3t tr\u1ed9i, \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng gi\u1eef c\u1ea1nh tuy\u1ec7t v\u1eddi, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe nh\u01b0 v\u00edt c\u1ea5p li\u1ec7u \u00e9p phun v\u00e0 \u1ed1ng l\u00f3t n\u00f2ng, CPM 20CV v\u01b0\u1ee3t tr\u1ed9i v\u1edbi ch\u1ea5t \u0111\u1ed9n m\u00e0i m\u00f2n.&nbsp;<\/p><p>Th\u00e9p CPM 20CV, do Crucible Industries ph\u00e1t tri\u1ec3n b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p luy\u1ec7n kim b\u1ed9t ti\u00ean ti\u1ebfn, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi h\u00e0m l\u01b0\u1ee3ng vanadi cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n \u0111\u1eb7c bi\u1ec7t. SteelPro Group cung c\u1ea5p nhi\u1ec1u s\u1ea3n ph\u1ea9m CPM 20CV, bao g\u1ed3m t\u1ea5m v\u00e0 thanh, \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 hi\u1ec7u su\u1ea5t \u0111\u1ed3ng nh\u1ea5t cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe.<\/p><h4 class=\"wp-block-heading\">CPM trong Blade Steel c\u00f3 ngh\u0129a l\u00e0 g\u00ec?<\/h4><p>CPM l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a <strong>Luy\u1ec7n kim h\u1ea1t Crucible<\/strong>, m\u1ed9t quy tr\u00ecnh luy\u1ec7n kim b\u1ed9t \u0111\u1ea3m b\u1ea3o c\u1ea5u tr\u00fac h\u1ea1t m\u1ecbn, \u0111\u1ed9 \u0111\u1ed3ng nh\u1ea5t \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n v\u00e0 c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u01b0\u1ee3t tr\u1ed9i trong c\u00e1c lo\u1ea1i th\u00e9p nh\u01b0 20CV.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p CPM 20CV t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi lo\u1ea1i n\u00e0o?<\/h2><p>CPM 20CV t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi th\u00e9p M390 v\u00e0 th\u00e9p CTS-204P, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n, ch\u1ed1ng \u0103n m\u00f2n v\u00e0 gi\u1eef c\u1ea1nh t\u01b0\u01a1ng t\u1ef1. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 c\u00f3 kh\u1ea3 n\u0103ng gi\u1eef c\u1ea1nh t\u1ed1t nh\u1ea5t trong s\u1ed1 c\u00e1c lo\u1ea1i th\u00e9p n\u00e0y.<\/p><h2 class=\"wp-block-heading\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p CPM 20CV<\/h2><p>Th\u00e9p CPM 20CV l\u00e0 th\u00e9p c\u00f4ng c\u1ee5 hi\u1ec7u su\u1ea5t cao, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 c\u1ee9ng \u0111\u1eb7c bi\u1ec7t do c\u00f3 h\u00e0m l\u01b0\u1ee3ng crom (Cr), vanadi (V) v\u00e0 vonfram (W) cao. H\u00e0m l\u01b0\u1ee3ng crom c\u1ee7a th\u00e9p n\u00e0y cao nh\u1ea5t trong s\u1ed1 c\u00e1c lo\u1ea1i th\u00e9p vanadi cao, gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n.&nbsp;&nbsp;<\/p><p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc chi ti\u1ebft c\u1ee7a th\u00e9p CPM 20CV.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Y\u1ebfu t\u1ed1<\/strong><\/td><td><strong>Ph\u1ea7n tr\u0103m (%)<\/strong><\/td><\/tr><tr><td>Cacbon (C)<\/td><td>\u2264 1,9<\/td><\/tr><tr><td>Crom (Cr)<\/td><td>\u2264 20<\/td><\/tr><tr><td>S\u1eaft (Fe)<\/td><td>\u2264 71,9<\/td><\/tr><tr><td>Mangan (Mn)<\/td><td>\u2264 0,30<\/td><\/tr><tr><td>Molip\u0111en (Mo)<\/td><td>\u2264 1.0<\/td><\/tr><tr><td>Silic (Si)<\/td><td>\u2264 0,30<\/td><\/tr><tr><td>Vonfram (W)<\/td><td>\u2264 0,60<\/td><\/tr><tr><td>Vanadi (V)<\/td><td>\u2264 4.0<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a th\u00e9p CPM 20CV<\/h2><p>Th\u00e9p CPM 20CV c\u00f3 m\u1eadt \u0111\u1ed9 cao v\u00e0 \u0111\u1ed9 d\u1eabn nhi\u1ec7t t\u1ed1t. \u0110i\u1ec1u n\u00e0y l\u00e0m cho n\u00f3 l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n t\u1ea3n nhi\u1ec7t hi\u1ec7u qu\u1ea3. Th\u00e9p c\u0169ng c\u00f3 h\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t th\u1ea5p. \u0110i\u1ec1u n\u00e0y gi\u00fap n\u00f3 duy tr\u00ec h\u00ecnh d\u1ea1ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/p><p>Sau \u0111\u00e2y l\u00e0 b\u1ea3ng ph\u00e2n t\u00edch chi ti\u1ebft v\u1ec1 t\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a th\u00e9p CPM S35VN.<\/p><figure class=\"wp-block-table\"><table><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>7,61 g\/cm\u00b3<\/td><td>0,275 lb\/in\u00b3<\/td><\/tr><tr><td>\u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/td><td>25 W\/m\u00b7K<\/td><td>17,3 BTU\u00b7in\/h\u00b7ft\u00b2\u00b7\u00b0F<\/td><\/tr><tr><td>H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t<\/td><td>5,8 \u00b5m\/m\u00b7\u00b0C<\/td><td>3,22 \u00b5in\/in\u00b7\u00b0F<\/td><\/tr><tr><td>\u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/td><td>1.300 \u00b0C<\/td><td>2.372 \u00b0F<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p CPM 20CV<\/h2><p>Th\u00e9p CPM 20CV k\u1ebft h\u1ee3p \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 b\u1ec1n ch\u1ea3y cao v\u1edbi \u0111\u1ed9 c\u1ee9ng tuy\u1ec7t v\u1eddi. \u0110\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 gi\u00e3n d\u00e0i \u1ea5n t\u01b0\u1ee3ng c\u1ee7a n\u00f3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady ngay c\u1ea3 trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t.&nbsp;<\/p><p>Sau \u0111\u00e2y l\u00e0 t\u00f3m t\u1eaft chi ti\u1ebft v\u1ec1 c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p CPM 20CV.<\/p><figure class=\"wp-block-table\"><table><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 (Rockwell C)<\/td><td>59-61 HRC<\/td><td>59-61 HRC<\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n k\u00e9o<\/td><td>1.850MPa<\/td><td>268 kil\u00f4m\u00e9t<\/td><\/tr><tr><td>S\u1ee9c ch\u1ecbu l\u1ef1c<\/td><td>1.650MPa<\/td><td>240 kil\u00f4m\u00e9t<\/td><\/tr><tr><td>\u0110\u1ed9 gi\u00e3n d\u00e0i<\/td><td>6-8 %<\/td><td>6-8 %<\/td><\/tr><tr><td>M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i<\/td><td>210 GPa<\/td><td>30,5 x 10\u00b3 ksi<\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n va \u0111\u1eadp (Charpy)<\/td><td>10 J (\u1edf -20\u00b0C)<\/td><td>7,4 ft-lb (\u1edf -4\u00b0F)<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">\u0110\u1eb7c \u0111i\u1ec3m th\u00e9p CPM 20CV&nbsp;<\/h2><h3 class=\"wp-block-heading\">\u0110\u1ed9 c\u1ee9ng<\/h3><p>CPM 20CV c\u00f3 \u0111\u1ed9 c\u1ee9ng l\u00e0 <strong>58-60 HRC<\/strong>, do h\u00e0m l\u01b0\u1ee3ng vanadi carbide d\u1ed3i d\u00e0o. \u0110i\u1ec1u n\u00e0y mang l\u1ea1i kh\u1ea3 n\u0103ng gi\u1eef c\u1ea1nh tuy\u1ec7t v\u1eddi m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a v\u1eadt li\u1ec7u, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 s\u1eafc b\u00e9n l\u00e2u d\u00e0i.<\/p><h3 class=\"wp-block-heading\">\u0110\u1ed9 b\u1ec1n<\/h3><p>CPM 20CV ch\u1ee9ng minh \u0111\u1ed9 b\u1ec1n v\u1edbi \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp l\u00e0 <strong>10 J \u1edf -20\u00b0C<\/strong>. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y kh\u1ea3 n\u0103ng ch\u1ed1ng g\u00e3y x\u01b0\u01a1ng v\u00e0 h\u1ea5p th\u1ee5 s\u1ed1c trong khi v\u1eabn duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n d\u01b0\u1edbi \u1ee9ng su\u1ea5t.<\/p><h3 class=\"wp-block-heading\">Ch\u1ed1ng m\u00e0i m\u00f2n<\/h3><p>CPM 20CV c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u01b0\u1ee3t tr\u1ed9i, b\u1ec1n h\u01a1n th\u00e9p nh\u01b0 S30V <strong>50%<\/strong> trong c\u00e1c th\u1eed nghi\u1ec7m ti\u00eau chu\u1ea9n. H\u00e0m l\u01b0\u1ee3ng vanadi cacbua cao \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 s\u1eafc b\u00e9n v\u00e0 \u0111\u1ed9 b\u1ec1n k\u00e9o d\u00e0i trong \u0111i\u1ec1u ki\u1ec7n m\u00e0i m\u00f2n.<\/p><h3 class=\"wp-block-heading\">Ch\u1ed1ng \u0103n m\u00f2n<\/h3><p>V\u1edbi <strong>20% crom<\/strong>CPM 20CV c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi, ng\u0103n ng\u1eeba qu\u00e1 tr\u00ecnh oxy h\u00f3a v\u00e0 r\u1ec9 s\u00e9t ngay c\u1ea3 trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t nh\u1edd l\u1edbp oxit crom b\u1ea3o v\u1ec7.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p CPM 20CV c\u00f3 t\u1ed1t kh\u00f4ng?<\/h2><p>C\u00f3, CPM 20CV l\u00e0 lo\u1ea1i th\u00e9p hi\u1ec7u su\u1ea5t cao \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n, ch\u1ed1ng \u0103n m\u00f2n v\u00e0 gi\u1eef c\u1ea1nh tuy\u1ec7t v\u1eddi, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe nh\u01b0 ch\u1ebf t\u1ea1o dao v\u00e0 d\u1ee5ng c\u1ee5.<\/p><h2 class=\"wp-block-heading\">X\u1eed l\u00fd nhi\u1ec7t th\u00e9p CPM 20CV<\/h2><p>T\u1ea1i SteelPRO Group, ch\u00fang t\u00f4i hi\u1ec3u \u0111\u01b0\u1ee3c t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c x\u1eed l\u00fd nhi\u1ec7t th\u00edch h\u1ee3p \u0111\u1ec3 khai th\u00e1c ho\u00e0n to\u00e0n ti\u1ec1m n\u0103ng c\u1ee7a th\u00e9p CPM 20CV. Quy tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t l\u00e0 y\u1ebfu t\u1ed1 ch\u00ednh \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 d\u1ebbo dai v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1i \u01b0u.&nbsp;<\/p><h3 class=\"wp-block-heading\">\u1ee6<\/h3><p>Ch\u00fang t\u00f4i khuy\u00ean b\u1ea1n n\u00ean th\u1ef1c hi\u1ec7n \u1ee7 sau khi gia c\u00f4ng n\u00f3ng v\u00e0 tr\u01b0\u1edbc khi l\u00e0m c\u1ee9ng l\u1ea1i. Th\u00e9p \u0111\u01b0\u1ee3c nung \u1edf t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u0111\u1ec3 <strong>1860\u00b0F \u0111\u1ebfn 1900\u00b0F (1016\u00b0C \u0111\u1ebfn 1038\u00b0C)<\/strong>, gi\u1eef \u1edf nhi\u1ec7t \u0111\u1ed9 \u0111\u00f3 trong 1 gi\u1edd cho m\u1ed7i inch \u0111\u1ed9 d\u00e0y, sau \u0111\u00f3 l\u00e0m ngu\u1ed9i ch\u1eadm trong l\u00f2.&nbsp;<\/p><h3 class=\"wp-block-heading\">L\u00e0m c\u1ee9ng<\/h3><ul class=\"wp-block-list\"><li><strong>L\u00e0m n\u00f3ng tr\u01b0\u1edbc<\/strong><\/li><\/ul><p>L\u00e0m n\u00f3ng tr\u01b0\u1edbc CPM 20CV \u0111\u1ebfn <strong>800\u00b0F \u0111\u1ebfn 1000\u00b0F (427\u00b0C \u0111\u1ebfn 538\u00b0C)<\/strong> gi\u1ea3m thi\u1ec3u s\u1ed1c nhi\u1ec7t v\u00e0 chu\u1ea9n b\u1ecb v\u1eadt li\u1ec7u cho c\u00e1c giai \u0111o\u1ea1n gia nhi\u1ec7t quan tr\u1ecdng.<\/p><ul class=\"wp-block-list\"><li><strong>Austenit h\u00f3a<\/strong><\/li><\/ul><p>Ti\u1ebfp theo, th\u00e9p \u0111\u01b0\u1ee3c nung n\u00f3ng \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 austenit h\u00f3a c\u1ee7a n\u00f3 <strong>1950\u00b0F \u0111\u1ebfn 2150\u00b0F (1065\u00b0C \u0111\u1ebfn 1177\u00b0C)<\/strong>. Vi\u1ec7c l\u1ef1a ch\u1ecdn nhi\u1ec7t \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 d\u1ebbo dai cu\u1ed1i c\u00f9ng; nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n s\u1ebd c\u1ea3i thi\u1ec7n \u0111\u1ed9 c\u1ee9ng nh\u01b0ng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u1ed9 d\u1ebbo dai.&nbsp;<\/p><ul class=\"wp-block-list\"><li><strong>L\u00e0m ngu\u1ed9i<\/strong><\/li><\/ul><p>Sau khi austenit h\u00f3a, th\u00e9p CPM 20CV \u0111\u01b0\u1ee3c t\u00f4i \u0111\u1ec3 l\u00e0m ngu\u1ed9i nhanh v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ea5u tr\u00fac martensitic. Th\u00e9p th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m ngu\u1ed9i b\u1eb1ng kh\u00ed n\u00e9n ho\u1eb7c d\u1ea7u \u1ea5m v\u1edbi t\u1ed1c \u0111\u1ed9 <strong>400\u00b0C m\u1ed7i ph\u00fat (222\u00b0C m\u1ed7i ph\u00fat)<\/strong> xu\u1ed1ng d\u01b0\u1edbi <strong>1000\u00b0F (538\u00b0C)<\/strong>, \u0111\u1ea3m b\u1ea3o th\u00e9p \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n t\u1ed1i \u0111a m\u00e0 kh\u00f4ng b\u1ecb bi\u1ebfn d\u1ea1ng ho\u1eb7c n\u1ee9t.<\/p><h3 class=\"wp-block-heading\">L\u00e0m ngu\u1ed9i<\/h3><p>Cu\u1ed1i c\u00f9ng, t\u00f4i th\u00e9p \u1edf <strong>300\u00b0F \u0111\u1ebfn 600\u00b0F (149\u00b0C \u0111\u1ebfn 315\u00b0C)<\/strong> \u0111\u1ec3 gi\u1ea3m \u1ee9ng su\u1ea5t b\u00ean trong v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1ebbo dai. Qu\u00e1 tr\u00ecnh t\u00f4i luy\u1ec7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t c\u1ea9n th\u1eadn \u0111\u1ec3 c\u00e2n b\u1eb1ng \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 d\u1ebbo dai d\u1ef1a tr\u00ean m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng th\u00e9p. Nhi\u1ec7t \u0111\u1ed9 t\u00f4i luy\u1ec7n cao h\u01a1n d\u1eabn \u0111\u1ebfn \u0111\u1ed9 d\u1ebbo dai cao h\u01a1n nh\u01b0ng \u0111\u1ed9 c\u1ee9ng th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat, cung c\u1ea5p h\u1ed3 s\u01a1 hi\u1ec7u su\u1ea5t \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang.<\/p><h2 class=\"wp-block-heading\">M\u1eabu s\u1ea3n ph\u1ea9m th\u00e9p CPM 20CV<\/h2><p>T\u1ea1i SteelPRO Group, ch\u00fang t\u00f4i cung c\u1ea5p nhi\u1ec1u lo\u1ea1i s\u1ea3n ph\u1ea9m th\u00e9p CPM 20CV, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u \u0111a d\u1ea1ng c\u1ee7a c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p. Ch\u00fang t\u00f4i c\u0169ng cung c\u1ea5p k\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh theo y\u00eau c\u1ea7u.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>M\u1eabu s\u1ea3n ph\u1ea9m<\/strong><\/td><td><strong>Ph\u1ea1m vi k\u00edch th\u01b0\u1edbc (H\u1ec7 m\u00e9t)<\/strong><\/td><td><strong>Ph\u1ea1m vi k\u00edch th\u01b0\u1edbc (Anh)<\/strong><\/td><\/tr><tr><td>T\u1ea5m tr\u1ea3i gi\u01b0\u1eddng<\/td><td>\u0110\u1ed9 d\u00e0y: 6,35 mm \u0111\u1ebfn 25,4 mm<\/td><td>\u0110\u1ed9 d\u00e0y: 0,25 inch \u0111\u1ebfn 1 inch<\/td><\/tr><tr><td>\u0110\u0129a<\/td><td>\u0110\u1ed9 d\u00e0y: 12,7 mm \u0111\u1ebfn 101,6 mm<\/td><td>\u0110\u1ed9 d\u00e0y: 0,5 in \u0111\u1ebfn 4 in<\/td><\/tr><tr><td>Thanh<\/td><td>\u0110\u01b0\u1eddng k\u00ednh: 12,7 mm \u0111\u1ebfn 101,6 mm<\/td><td>\u0110\u01b0\u1eddng k\u00ednh: 0,5 in \u0111\u1ebfn 4 in<\/td><\/tr><tr><td rowspan=\"2\">Thanh<\/td><td>\u0110\u01b0\u1eddng k\u00ednh: 6,35 mm \u0111\u1ebfn 50,8 mm<\/td><td>\u0110\u01b0\u1eddng k\u00ednh: 0,25 in \u0111\u1ebfn 2 in<\/td><\/tr><tr><td>Chi\u1ec1u d\u00e0i: l\u00ean \u0111\u1ebfn 3.000 mm<\/td><td>Chi\u1ec1u d\u00e0i: l\u00ean \u0111\u1ebfn 10 ft<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng th\u00e9p CPM 20CV<\/h2><ul class=\"wp-block-list\"><li><strong>D\u1ee5ng c\u1ee5 c\u1eaft<\/strong>: C\u00e1c lo\u1ea1i dao, l\u01b0\u1ee1i c\u01b0a v\u00e0 d\u1ee5ng c\u1ee5 c\u1eaft c\u00f4ng nghi\u1ec7p cao c\u1ea5p \u0111\u00f2i h\u1ecfi \u0111\u1ed9 s\u1eafc b\u00e9n v\u00e0 \u0111\u1ed9 b\u1ec1n cao.<\/li>\n\n<li><strong>Khu\u00f4n ch\u00ednh x\u00e1c<\/strong>: Khu\u00f4n \u0111\u00fac, t\u1ea1o h\u00ecnh v\u00e0 d\u1eadp \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n cao \u0111\u1ec3 s\u1ea3n xu\u1ea5t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn.<\/li>\n\n<li><strong>Linh ki\u1ec7n h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5<\/strong>:C\u00e1c b\u1ed9 ph\u1eadn nh\u01b0 c\u00e1nh tua-bin v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n ch\u1ecbu \u1ee9ng su\u1ea5t cao kh\u00e1c trong ng\u00e0nh h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5.<\/li>\n\n<li><strong>Ch\u1ed1t<\/strong>: V\u00edt v\u00e0 bu l\u00f4ng hi\u1ec7u su\u1ea5t cao \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 tin c\u1eady trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/li><\/ul><h4 class=\"wp-block-heading\">CPM 20CV c\u00f3 t\u1ed1t h\u01a1n S35VN kh\u00f4ng?<\/h4><p>C\u00f3, CPM 20CV c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t h\u01a1n v\u00e0 gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 s\u1eafc b\u00e9n l\u00e2u h\u01a1n v\u00ec n\u00f3 c\u00f3 nhi\u1ec1u vanadi h\u01a1n. \u0110i\u1ec1u n\u00e0y l\u00e0m cho n\u00f3 b\u1ec1n h\u01a1n <a href=\"https:\/\/steelprogroup.com\/vi\/tool-steel\/grades\/cpm-s35vn\/\">S35VN<\/a>.<\/p><h4 class=\"wp-block-heading\">20CV c\u00f3 t\u1ed1t h\u01a1n S30V kh\u00f4ng?<\/h4><p>C\u00f3, CPM 20CV th\u01b0\u1eddng v\u01b0\u1ee3t tr\u1ed9i h\u01a1n <a href=\"https:\/\/steelprogroup.com\/vi\/tool-steel\/grades\/cpm-s30v\/\">S30V<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 gi\u1eef c\u1ea1nh t\u1ed1t h\u01a1n nh\u1edd h\u00e0m l\u01b0\u1ee3ng crom v\u00e0 vanadi cao h\u01a1n, mang l\u1ea1i \u0111\u1ed9 b\u1ec1n t\u1ed1t h\u01a1n.<\/p><h2 class=\"wp-block-heading\">Ngu\u1ed3n \u0111\u00e1ng tin c\u1eady c\u1ee7a b\u1ea1n cho th\u00e9p CPM 20CV<\/h2><p>T\u1ea1i SteelPro Group, ch\u00fang t\u00f4i chuy\u00ean v\u1ec1 c\u00e1c s\u1ea3n ph\u1ea9m th\u00e9p CPM 20CV ch\u1ea5t l\u01b0\u1ee3ng cao, bao g\u1ed3m t\u1ea5m, thanh, thanh v\u00e0 thanh khoan. Ch\u00fang t\u00f4i cung c\u1ea5p c\u1ea3 k\u00edch th\u01b0\u1edbc ti\u00eau chu\u1ea9n v\u00e0 t\u00f9y ch\u1ec9nh \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u ch\u00ednh x\u00e1c c\u1ee7a b\u1ea1n. C\u00e1c d\u1ecbch v\u1ee5 x\u1eed l\u00fd c\u1ee7a ch\u00fang t\u00f4i\u2014nh\u01b0 c\u1eaft, m\u00e0i, \u0111\u00e1nh b\u00f3ng v\u00e0 x\u1eed l\u00fd nhi\u1ec7t\u2014\u0111\u1ea3m b\u1ea3o th\u00e9p c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng t\u1ed1t nh\u1ea5t trong m\u1ecdi \u1ee9ng d\u1ee5ng.<\/p><p>Ch\u00fang t\u00f4i \u1edf \u0111\u00e2y \u0111\u1ec3 cung c\u1ea5p cho b\u1ea1n \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed9 tin c\u1eady l\u00e0m cho th\u00e9p CPM 20CV tr\u1edf n\u00ean n\u1ed5i b\u1eadt. H\u00e3y \u0111\u1ec3 ch\u00fang t\u00f4i tr\u1edf th\u00e0nh \u0111\u1ed1i t\u00e1c \u0111\u00e1ng tin c\u1eady c\u1ee7a b\u1ea1n v\u1ec1 v\u1eadt li\u1ec7u cao c\u1ea5p v\u00e0 h\u1ed7 tr\u1ee3. Li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i ngay h\u00f4m nay!<\/p><p><\/p>","protected":false},"excerpt":{"rendered":"<p>SteelPro Group \u0111\u00e3 \u0111i \u0111\u1ea7u trong vi\u1ec7c cung c\u1ea5p c\u00e1c v\u1eadt li\u1ec7u h\u00e0ng \u0111\u1ea7u nh\u01b0 th\u00e9p CPM 20CV trong h\u01a1n m\u01b0\u1eddi n\u0103m. Cho d\u00f9 [\u2026]<\/p>","protected":false},"author":12,"featured_media":20066,"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-20071","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\/20071","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=20071"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/20071\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/20066"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=20071"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=20071"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=20071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}