{"id":20036,"date":"2024-12-24T08:14:00","date_gmt":"2024-12-24T00:14:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=20036"},"modified":"2025-01-14T14:17:29","modified_gmt":"2025-01-14T06:17:29","slug":"m42","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/tool-steel\/grades\/m42\/","title":{"rendered":"Th\u00e9p c\u00f4ng c\u1ee5 t\u1ed1c \u0111\u1ed9 cao M42: T\u00ednh ch\u1ea5t, quy tr\u00ecnh, c\u00f4ng d\u1ee5ng"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Th\u00e9p c\u00f4ng c\u1ee5 M42 l\u00e0 g\u00ec?<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p c\u00f4ng c\u1ee5 M42 l\u00e0 h\u1ee3p kim t\u1ed1c \u0111\u1ed9 cao v\u1edbi coban 8-10%. N\u00f3 c\u00f3 \u0111\u1ed9 c\u1ee9ng \u0111\u1ecf tuy\u1ec7t v\u1eddi, duy tr\u00ec \u0111\u1ed9 c\u1ee9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n tuy\u1ec7t v\u1eddi \u0111\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a d\u1ee5ng c\u1ee5. L\u00fd t\u01b0\u1edfng \u0111\u1ec3 c\u1eaft c\u00e1c v\u1eadt li\u1ec7u c\u1ee9ng nh\u01b0 th\u00e9p c\u01b0\u1eddng \u0111\u1ed9 cao v\u00e0 h\u1ee3p kim h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, M42 ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n so v\u1edbi c\u00e1c d\u1ee5ng c\u1ee5 cacbua v\u00e0 ch\u1ed1ng m\u1ebb. V\u1edbi \u0111\u1ed9 c\u1ee9ng 68-70 HRC sau khi x\u1eed l\u00fd nhi\u1ec7t, n\u00f3 ho\u00e0n h\u1ea3o \u0111\u1ec3 c\u1eaft c\u00e1c d\u1ee5ng c\u1ee5, khu\u00f4n v\u00e0 khu\u00f4n \u0111\u00fac.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p c\u00f4ng c\u1ee5 M42 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi c\u00e1i g\u00ec?<\/h2><p class=\"wp-block-paragraph\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 danh s\u00e1ch c\u00e1c lo\u1ea1i th\u00e9p c\u00f4ng c\u1ee5 M42 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng ph\u1ed5 bi\u1ebfn nh\u1ea5t theo nhi\u1ec1u ti\u00eau chu\u1ea9n kh\u00e1c nhau:<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Anh<\/strong><\/td><td><strong>ISC<\/strong><\/td><td><strong>Ti\u00eau chu\u1ea9n Nh\u1eadt B\u1ea3n<\/strong><\/td><td><strong>Ti\u00eau chu\u1ea9n ASTM<\/strong><\/td><td><strong>Li\u00ean Hi\u1ec7p Qu\u1ed1c<\/strong><\/td><td><strong>Ti\u00eau chu\u1ea9n ISO<\/strong><\/td><\/tr><tr><td>W2Mo9Cr4VCo8<\/td><td>T72948<\/td><td>SKH59<\/td><td>M42<\/td><td>T11342<\/td><td>HS 2-9-1-8<\/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 M42<\/h2><p class=\"wp-block-paragraph\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 M42, v\u1edbi h\u00e0m l\u01b0\u1ee3ng coban (Co), molypden (Mo) v\u00e0 vonfram (W) cao, mang l\u1ea1i cho n\u00f3 \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t tuy\u1ec7t v\u1eddi. Crom (Cr) v\u00e0 vanadi (V) c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1ebbo dai v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y cho th\u1ea5y th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a n\u00f3.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Y\u1ebfu t\u1ed1<\/strong><\/td><td><strong>Th\u00e0nh ph\u1ea7n<\/strong><\/td><\/tr><tr><td>Cacbon (C)<\/td><td>1.05 &#8211; 1.15 %<\/td><\/tr><tr><td>Crom (Cr)<\/td><td>3.5 &#8211; 4.25 %<\/td><\/tr><tr><td>Coban (Co)<\/td><td>7.75 &#8211; 8.75 %<\/td><\/tr><tr><td>\u0110\u1ed3ng (Cu)<\/td><td>\u2264 0,25 %<\/td><\/tr><tr><td>S\u1eaft (Fe)<\/td><td>71.0 &#8211; 76.3 %<\/td><\/tr><tr><td>Mangan (Mn)<\/td><td>0.15 &#8211; 0.40 %<\/td><\/tr><tr><td>Molip\u0111en (Mo)<\/td><td>9.0 &#8211; 10 %<\/td><\/tr><tr><td>Niken (Ni)<\/td><td>\u2264 0,30 %<\/td><\/tr><tr><td>Ph\u1ed1t pho (P)<\/td><td>\u2264 0,030 %<\/td><\/tr><tr><td>Silic (Si)<\/td><td>0.15 &#8211; 0.65 %<\/td><\/tr><tr><td>L\u01b0u hu\u1ef3nh (S)<\/td><td>\u2264 0,030 %<\/td><\/tr><tr><td>Vonfram (W)<\/td><td>1.15 &#8211; 1.85 %<\/td><\/tr><tr><td>Vanadi (V)<\/td><td>0.95 &#8211; 1.35 %<\/td><\/tr><\/tbody><\/table><\/figure><ul class=\"wp-block-list\"><li><em>H\u00e0m l\u01b0\u1ee3ng l\u01b0u hu\u1ef3nh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u1edf m\u1ee9c 0,06% \u0111\u1ebfn 0,15% \u0111\u1ec3 t\u0103ng kh\u1ea3 n\u0103ng gia c\u00f4ng.<\/em><\/li><\/ul><h2 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 M42<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p c\u00f4ng c\u1ee5 M42 c\u00f3 m\u1eadt \u0111\u1ed9 cao, \u0111\u1ed9 d\u1eabn nhi\u1ec7t m\u1ea1nh v\u00e0 \u0111\u1ed9 gi\u00e3n n\u1edf nhi\u1ec7t th\u1ea5p, l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng hi\u1ec7u su\u1ea5t cao v\u00e0 ch\u1ecbu nhi\u1ec7t. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y tr\u00ecnh b\u00e0y c\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd ch\u00ednh c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 M42.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>Gi\u00e1 tr\u1ecb s\u1ed1 li\u1ec7u<\/strong><\/td><td><strong>Gi\u00e1 tr\u1ecb \u0110\u1ebf qu\u1ed1c<\/strong><\/td><\/tr><tr><td>T\u1ec9 tr\u1ecdng<\/td><td>7,8g\/cm\u00b3<\/td><td>0,282 lb\/in\u00b3<\/td><\/tr><tr><td>\u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/td><td>27,0 W\/m\u00b7K<\/td><td>18,7 BTU\/gi\u1edd\u00b7ft\u00b7\u00b0F\u00b7in<\/td><\/tr><tr><td>Nhi\u1ec7t dung ri\u00eang<\/td><td>460 J\/kg\u00b7K<\/td><td>0,11 BTU\/lb\u00b7\u00b0F<\/td><\/tr><tr><td>H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t<\/td><td>11,7 \u00b5m\/m\u00b7\u00b0C<\/td><td>6,5 \u00d7 10\u207b\u2076 in\/in\u00b7\u00b0F<\/td><\/tr><tr><td>\u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/td><td>1400 \u2013 1450 \u00b0C<\/td><td>2552 \u2013 2642 \u00b0F<\/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 M42<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p c\u00f4ng c\u1ee5 M42 r\u1ea5t c\u1ee9ng (62-64 HRC) v\u00e0 b\u1ec1n, l\u00e0m cho n\u00f3 tr\u1edf n\u00ean tuy\u1ec7t v\u1eddi cho c\u00e1c c\u00f4ng vi\u1ec7c kh\u00f3 kh\u0103n nh\u01b0 c\u1eaft v\u00e0 khoan. N\u00f3 c\u0169ng cung c\u1ea5p \u0111\u1ed9 b\u1ec1n t\u1ed1t, m\u1eb7c d\u00f9 n\u00f3 \u00edt ch\u1ecbu va \u0111\u1eadp h\u01a1n so v\u1edbi m\u1ed9t s\u1ed1 lo\u1ea1i th\u00e9p t\u1ed1c \u0111\u1ed9 cao kh\u00e1c, nh\u01b0 <a href=\"https:\/\/steelprogroup.com\/vi\/tool-steel\/grades\/m2\/\">M2<\/a> ho\u1eb7c <a href=\"https:\/\/steelprogroup.com\/vi\/tool-steel\/grades\/m4\/\">th\u00e9p M4<\/a>B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y hi\u1ec3n th\u1ecb c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc ch\u00ednh c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 M42.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>Gi\u00e1 tr\u1ecb s\u1ed1 li\u1ec7u<\/strong><\/td><td><strong>Gi\u00e1 tr\u1ecb \u0110\u1ebf qu\u1ed1c<\/strong><\/td><\/tr><tr><td>\u0110\u1ed9 c\u1ee9ng (sau khi x\u1eed l\u00fd nhi\u1ec7t)<\/td><td>62-64 HRC<\/td><td>62-64 HRC<\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n k\u00e9o<\/td><td>3000-3200MPa<\/td><td>435.000-464.000 psi<\/td><\/tr><tr><td>S\u1ee9c ch\u1ecbu l\u1ef1c<\/td><td>2200-2400MPa<\/td><td>319.000-348.000 psi<\/td><\/tr><tr><td>\u0110\u1ed9 gi\u00e3n d\u00e0i<\/td><td>3-4%<\/td><td>3-4%<\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n va \u0111\u1eadp (Charpy)<\/td><td>15-20 J\/cm\u00b2<\/td><td>11-15 ft\u00b7lbf\/in\u00b2<\/td><\/tr><tr><td>M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i<\/td><td>210 GPa<\/td><td>30,5 \u00d7 10\u00b3 ksi<\/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><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">X\u1eed l\u00fd nhi\u1ec7t th\u00e9p c\u00f4ng c\u1ee5 M42<\/h2><p class=\"wp-block-paragraph\">Quy tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 c\u1ee9ng, s\u1ee9c m\u1ea1nh v\u00e0 \u0111\u1ed9 d\u1ebbo dai, \u0111\u1ea3m b\u1ea3o M42 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u kh\u1eaft khe c\u1ee7a c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 s\u1ea3n xu\u1ea5t, \u00f4 t\u00f4 v\u00e0 gia c\u00f4ng c\u01a1 kh\u00ed.<\/p><h3 class=\"wp-block-heading\">\u1ee6<\/h3><p class=\"wp-block-paragraph\">\u0110\u1ec3 l\u00e0m m\u1ec1m th\u00e9p, h\u00e3y nung n\u00f3ng t\u1eeb t\u1eeb \u0111\u1ebfn 1575-1650\u00b0F (857-899\u00b0C). Gi\u1eef th\u00e9p \u1edf nhi\u1ec7t \u0111\u1ed9 n\u00e0y trong 1 gi\u1edd cho m\u1ed7i inch (25,4 mm) \u0111\u1ed9 d\u00e0y, t\u1ed1i thi\u1ec3u l\u00e0 2 gi\u1edd.&nbsp;&nbsp;<\/p><p class=\"wp-block-paragraph\">L\u00e0m ngu\u1ed9i th\u00e9p t\u1eeb t\u1eeb trong l\u00f2 \u1edf nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng qu\u00e1 50\u00b0F (28\u00b0C) m\u1ed9t gi\u1edd cho \u0111\u1ebfn khi \u0111\u1ea1t 1000\u00b0F (538\u00b0C). Sau khi ngu\u1ed9i, \u0111\u1ec3 ngu\u1ed9i \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng trong l\u00f2 ho\u1eb7c kh\u00f4ng kh\u00ed.<\/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 class=\"wp-block-paragraph\">\u0110\u1ea7u ti\u00ean, nung th\u00e9p t\u1eeb t\u1eeb \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 t\u1eeb 816-871\u00b0C (1500-1600\u00b0F). Gi\u1eef nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh tr\u01b0\u1edbc khi chuy\u1ec3n sang b\u01b0\u1edbc ti\u1ebfp theo.<\/p><ul class=\"wp-block-list\"><li><strong>Austenit h\u00f3a<\/strong><\/li><\/ul><p class=\"wp-block-paragraph\">Trong b\u01b0\u1edbc n\u00e0y, h\u00e3y nung th\u00e9p nhanh \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 austenit h\u00f3a mong mu\u1ed1n. N\u1ebfu s\u1eed d\u1ee5ng l\u00f2 nung, h\u00e3y nung \u0111\u1ebfn 2150-2175\u00b0F (1177-1191\u00b0C). N\u1ebfu s\u1eed d\u1ee5ng b\u1ed3n mu\u1ed1i, h\u00e3y nung th\u00e9p \u0111\u1ebfn ph\u1ea1m vi th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat l\u00e0 2125-2150\u00b0F (1163-1177\u00b0C). \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng th\u00e9p \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng t\u00f4i luy\u1ec7n c\u1ea7n thi\u1ebft.<\/p><ul class=\"wp-block-list\"><li><strong>L\u00e0m ngu\u1ed9i<\/strong><\/li><\/ul><p class=\"wp-block-paragraph\">Sau khi austenit h\u00f3a, th\u00e9p ph\u1ea3i \u0111\u01b0\u1ee3c t\u00f4i \u0111\u1ec3 gi\u1eef nguy\u00ean t\u00ednh ch\u1ea5t c\u1ee9ng c\u1ee7a n\u00f3. C\u00f3 ba ph\u01b0\u01a1ng ph\u00e1p t\u00f4i ch\u00ednh: kh\u00ed n\u00e9n, d\u1ea7u \u1ea5m v\u00e0 mu\u1ed1i.&nbsp;<\/p><p class=\"wp-block-paragraph\">Th\u00e9p ph\u1ea3i ngu\u1ed9i nhanh, l\u00fd t\u01b0\u1edfng nh\u1ea5t l\u00e0 d\u01b0\u1edbi 1000\u00b0F (538\u00b0C) \u0111\u1ec3 gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng. \u0110\u1ed1i v\u1edbi qu\u00e1 tr\u00ecnh t\u00f4i d\u1ea7u, th\u00e9p ph\u1ea3i \u0111\u01b0\u1ee3c l\u00e0m ngu\u1ed9i cho \u0111\u1ebfn khi chuy\u1ec3n sang m\u00e0u \u0111en (kho\u1ea3ng 900\u00b0F ho\u1eb7c 482\u00b0C) r\u1ed3i l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed \u0111\u1ebfn kho\u1ea3ng 150-125\u00b0F (66-51\u00b0C). N\u1ebfu s\u1eed d\u1ee5ng mu\u1ed1i, t\u00f4i \u1edf 1000-1100\u00b0F (538-593\u00b0C), sau \u0111\u00f3 \u0111\u1ec3 ngu\u1ed9i trong kh\u00f4ng kh\u00ed.<\/p><h3 class=\"wp-block-heading\">L\u00e0m ngu\u1ed9i<\/h3><p class=\"wp-block-paragraph\">Ngay sau khi t\u00f4i, t\u00f4i th\u00e9p \u0111\u1ec3 gi\u1ea3m \u0111\u1ed9 gi\u00f2n trong khi v\u1eabn duy tr\u00ec \u0111\u1ed9 b\u1ec1n. L\u00e0m n\u00f3ng th\u00e9p \u0111\u1ebfn 1025-1050\u00b0F (551-565\u00b0C) v\u00e0 gi\u1eef trong 2 gi\u1edd. Sau \u0111\u00f3, \u0111\u1ec3 ngu\u1ed9i \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng trong kh\u00f4ng kh\u00ed.&nbsp;<\/p><p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh t\u00f4i luy\u1ec7n n\u00ean \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n ba l\u1ea7n \u0111\u1ec3 gi\u1ea3m \u1ee9ng su\u1ea5t b\u00ean trong, t\u0103ng \u0111\u1ed9 d\u1ebbo dai v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 c\u00e2n b\u1eb1ng t\u1ed1i \u01b0u gi\u1eefa \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 d\u1ebbo.<\/p><h2 class=\"wp-block-heading\">H\u00ecnh d\u1ea1ng s\u1ea3n ph\u1ea9m th\u00e9p c\u00f4ng c\u1ee5 M42<\/h2><p class=\"wp-block-paragraph\">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 M42, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u \u0111a d\u1ea1ng c\u1ee7a kh\u00e1ch h\u00e0ng. Cho d\u00f9 b\u1ea1n c\u1ea7n thanh tr\u00f2n, thanh vu\u00f4ng, thanh ph\u1eb3ng, t\u1ea5m, thanh khoan hay ph\u00f4i d\u1ee5ng c\u1ee5 t\u00f9y ch\u1ec9nh, ch\u00fang t\u00f4i cung c\u1ea5p nhi\u1ec1u k\u00edch c\u1ee1 kh\u00e1c nhau \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.&nbsp;<\/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 rowspan=\"2\">Thanh tr\u00f2n<\/td><td>\u0110\u01b0\u1eddng k\u00ednh: 10 mm \u0111\u1ebfn 500 mm<\/td><td>\u0110\u01b0\u1eddng k\u00ednh: 0,39 in \u0111\u1ebfn 19,7 in<\/td><\/tr><tr><td>Chi\u1ec1u d\u00e0i: 1000 mm \u0111\u1ebfn 4000 mm<\/td><td>Chi\u1ec1u d\u00e0i: 3,3 ft \u0111\u1ebfn 13,1 ft<\/td><\/tr><tr><td rowspan=\"2\">Thanh vu\u00f4ng<\/td><td>10 mm x 10 mm \u0111\u1ebfn 300 mm x 300 mm<\/td><td>0,39 in x 0,39 in \u0111\u1ebfn 11,8 in x 11,8 in<\/td><\/tr><tr><td>Chi\u1ec1u d\u00e0i: 1000 mm \u0111\u1ebfn 4000 mm<\/td><td>Chi\u1ec1u d\u00e0i: 3,3 ft \u0111\u1ebfn 13,1 ft<\/td><\/tr><tr><td rowspan=\"3\">Thanh ph\u1eb3ng<\/td><td>\u0110\u1ed9 d\u00e0y: 5 mm \u0111\u1ebfn 100 mm<\/td><td>\u0110\u1ed9 d\u00e0y: 0,2 in \u0111\u1ebfn 3,9 in<\/td><\/tr><tr><td>Chi\u1ec1u r\u1ed9ng: 20 mm \u0111\u1ebfn 500 mm<\/td><td>Chi\u1ec1u r\u1ed9ng: 0,79 in \u0111\u1ebfn 19,7 in<\/td><\/tr><tr><td>Chi\u1ec1u d\u00e0i: 1000 mm \u0111\u1ebfn 4000 mm<\/td><td>Chi\u1ec1u d\u00e0i: 3,3 ft \u0111\u1ebfn 13,1 ft<\/td><\/tr><tr><td rowspan=\"3\">\u0110\u0129a<\/td><td>\u0110\u1ed9 d\u00e0y: 10 mm \u0111\u1ebfn 150 mm<\/td><td>\u0110\u1ed9 d\u00e0y: 0,39 in \u0111\u1ebfn 5,9 in<\/td><\/tr><tr><td>Chi\u1ec1u r\u1ed9ng: 200 mm \u0111\u1ebfn 2000 mm<\/td><td>Chi\u1ec1u r\u1ed9ng: 7,9 in \u0111\u1ebfn 78,7 in<\/td><\/tr><tr><td>Chi\u1ec1u d\u00e0i: 1000 mm \u0111\u1ebfn 4000 mm<\/td><td>Chi\u1ec1u d\u00e0i: 3,3 ft \u0111\u1ebfn 13,1 ft<\/td><\/tr><tr><td rowspan=\"2\">Thanh khoan<\/td><td>\u0110\u01b0\u1eddng k\u00ednh: 3 mm \u0111\u1ebfn 30 mm<\/td><td>\u0110\u01b0\u1eddng k\u00ednh: 0,12 in \u0111\u1ebfn 1,18 in<\/td><\/tr><tr><td>Chi\u1ec1u d\u00e0i: 300 mm \u0111\u1ebfn 1000 mm<\/td><td>Chi\u1ec1u d\u00e0i: 11,8 in \u0111\u1ebfn 39,4 in<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng th\u00e9p c\u00f4ng c\u1ee5 M42<\/h2><p class=\"wp-block-paragraph\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 ph\u00e2n lo\u1ea1i c\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 M42 d\u1ef1a tr\u00ean c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau:<\/p><h3 class=\"wp-block-heading\">D\u1ee5ng c\u1ee5 c\u1eaft<\/h3><ul class=\"wp-block-list\"><li>M\u00e1y khoan xo\u1eafn<\/li>\n\n<li>V\u00f2i (v\u00ed d\u1ee5: V\u00f2i ren)<\/li>\n\n<li>M\u00e1y phay cu\u1ed1i<\/li>\n\n<li>M\u00e1y doa<\/li>\n\n<li>C\u00f4ng c\u1ee5 khoan<\/li>\n\n<li>C\u01b0a c\u1eaft<\/li>\n\n<li>Khu\u00f4n ren<\/li><\/ul><h3 class=\"wp-block-heading\">C\u00f4ng c\u1ee5 t\u1ea1o h\u00ecnh v\u00e0 \u0111\u1ecbnh h\u00ecnh<\/h3><ul class=\"wp-block-list\"><li>C\u00f4ng c\u1ee5 \u0111\u00fac<\/li>\n\n<li>Tr\u00e2m c\u00e0i<\/li>\n\n<li>C\u00f4ng c\u1ee5 \u0111\u1ecbnh h\u00ecnh<\/li>\n\n<li>C\u00f4ng c\u1ee5 khai th\u00e1c<\/li><\/ul><h3 class=\"wp-block-heading\">Linh ki\u1ec7n m\u00e1y m\u00f3c ch\u00ednh x\u00e1c<\/h3><ul class=\"wp-block-list\"><li>D\u1ee5ng c\u1ee5 c\u1eaft b\u00e1nh r\u0103ng<\/li>\n\n<li>Linh ki\u1ec7n tr\u1ee5c ch\u00ednh<\/li>\n\n<li>\u0110\u1ea5m v\u00e0 Khu\u00f4n cho D\u1eadp<\/li>\n\n<li>Dao (\u0111\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao)<\/li><\/ul><h3 class=\"wp-block-heading\">Thi\u1ebft b\u1ecb s\u1ea3n xu\u1ea5t v\u00e0 d\u1ee5ng c\u1ee5<\/h3><ul class=\"wp-block-list\"><li>M\u0169i khoan<\/li>\n\n<li>D\u1ee5ng c\u1ee5 phay<\/li>\n\n<li>Ph\u00f4i b\u00e1nh r\u0103ng<\/li>\n\n<li>L\u01b0\u1ee1i c\u1eaft<\/li><\/ul><h2 class=\"wp-block-heading\">Gi\u1ea3i ph\u00e1p t\u00f9y ch\u1ec9nh &amp; gia c\u00f4ng ch\u00ednh x\u00e1c cho th\u00e9p M42<\/h2><p class=\"wp-block-paragraph\">S\u1ea3n ph\u1ea9m M42 c\u1ee7a ch\u00fang t\u00f4i c\u00f3 nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau, bao g\u1ed3m thanh tr\u00f2n, thanh vu\u00f4ng, thanh ph\u1eb3ng, t\u1ea5m v\u00e0 thanh khoan. Ch\u00fang t\u00f4i c\u0169ng cung c\u1ea5p c\u00e1c lo\u1ea1i kh\u00e1c nh\u01b0 <a href=\"https:\/\/steelprogroup.com\/vi\/tool-steel\/w18cr4v\/\">Th\u00e9p T1<\/a>.<\/p><p class=\"wp-block-paragraph\">D\u1ecbch v\u1ee5 m\u00e0i, ti\u1ec7n, phay v\u00e0 c\u1eaft c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o s\u1ea3n ph\u1ea9m c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o theo ti\u00eau chu\u1ea9n ch\u1ea5t l\u01b0\u1ee3ng cao nh\u1ea5t, mang l\u1ea1i k\u1ebft qu\u1ea3 \u0111\u00e1ng tin c\u1eady v\u00e0 l\u00e2u d\u00e0i. SteelPro Group l\u00e0 \u0111\u1ed1i t\u00e1c \u0111\u00e1ng tin c\u1eady c\u1ee7a b\u1ea1n v\u1ec1 c\u00e1c gi\u1ea3i ph\u00e1p th\u00e9p M42 b\u1ec1n b\u1ec9, hi\u1ec7u su\u1ea5t cao.<\/p><p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>What Is M42 Tool Steel? M42 tool steel is a high-speed alloy with 8-10% cobalt. It offers excellent red-hardness, staying [&hellip;]<\/p>","protected":false},"author":12,"featured_media":20041,"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-20036","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\/20036","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=20036"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/20036\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/20041"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=20036"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=20036"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=20036"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}