{"id":20417,"date":"2025-01-14T11:23:00","date_gmt":"2025-01-14T03:23:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=20417"},"modified":"2025-01-14T17:56:42","modified_gmt":"2025-01-14T09:56:42","slug":"4140-vs-4142","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/tool-steel\/comparison\/4140-vs-4142\/","title":{"rendered":"Th\u00e9p AISI 4140 v\u00e0 4142: So s\u00e1nh thu\u1ed9c t\u00ednh"},"content":{"rendered":"<p>AISI 4140 v\u00e0 AISI 4142 \u0111\u1ec1u l\u00e0 th\u00e9p h\u1ee3p kim c\u00f3 t\u00ednh ch\u1ea5t t\u01b0\u01a1ng t\u1ef1 nhau. \u0110i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh l\u00e0 4142 c\u00f3 nhi\u1ec1u cacbon h\u01a1n m\u1ed9t ch\u00fat v\u00e0 m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf boron, gi\u00fap c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 kh\u1ea3 n\u0103ng t\u00f4i luy\u1ec7n so v\u1edbi 4140. M\u1eb7c d\u00f9 c\u1ea3 hai lo\u1ea1i th\u00e9p \u0111\u1ec1u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng t\u01b0\u01a1ng t\u1ef1, nh\u01b0ng 4142 ph\u00f9 h\u1ee3p h\u01a1n cho c\u00e1c m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 b\u1ec1n cao h\u01a1n.<\/p><p>N\u1ebfu b\u1ea1n c\u1ea7n bi\u1ebft th\u00eam th\u00f4ng tin chi ti\u1ebft v\u1ec1 nh\u1eefng kh\u00e1c bi\u1ec7t n\u00e0y, SteelPro Group, v\u1edbi t\u01b0 c\u00e1ch l\u00e0 nh\u00e0 cung c\u1ea5p chuy\u00ean nghi\u1ec7p, s\u1ebd \u1edf \u0111\u00e2y \u0111\u1ec3 cung c\u1ea5p th\u00f4ng tin chi ti\u1ebft h\u01a1n v\u00e0 gi\u00fap b\u1ea1n \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a m\u00ecnh.<\/p><h2 class=\"wp-block-heading\">T\u1ed5ng quan v\u1ec1 th\u00e9p 4140 v\u00e0 4142<\/h2><h3 class=\"wp-block-heading\">Th\u00e9p 4140<\/h3><p>Th\u00e9p AISI 4140 l\u00e0 lo\u1ea1i th\u00e9p h\u1ee3p kim th\u1ea5p \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb cacbon, crom, molypden v\u00e0 mangan. C\u00e1c nguy\u00ean t\u1ed1 n\u00e0y mang l\u1ea1i cho th\u00e9p \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 d\u1ebbo dai, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u1eeba ph\u1ea3i. \u0110i\u1ec1u n\u00e0y l\u00e0m cho th\u00e9p ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu \u1ee9ng su\u1ea5t cao, n\u01a1i th\u01b0\u1eddng xuy\u00ean x\u1ea3y ra va \u0111\u1eadp v\u00e0 t\u1ea3i tr\u1ecdng l\u1eb7p \u0111i l\u1eb7p l\u1ea1i.<\/p><ul class=\"wp-block-list\"><li>Th\u00e9p AISI 4140 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t tr\u1ee5c khu\u1ef7u, tr\u1ee5c truy\u1ec1n \u0111\u1ed9ng, b\u00e1nh r\u0103ng, tr\u1ee5c, thanh th\u1ee7y l\u1ef1c v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn d\u1ee5ng c\u1ee5 trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 \u00f4 t\u00f4 v\u00e0 m\u00e1y m\u00f3c.<\/li><\/ul><h3 class=\"wp-block-heading\">Th\u00e9p 4142<\/h3><p>AISI 4142 l\u00e0 th\u00e9p h\u1ee3p kim th\u1ea5p c\u00f3 h\u00e0m l\u01b0\u1ee3ng cacbon, crom v\u00e0 molypden cao h\u01a1n so v\u1edbi 4140. H\u00e0m l\u01b0\u1ee3ng h\u1ee3p kim t\u0103ng n\u00e0y l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng t\u00f4i luy\u1ec7n, cho ph\u00e9p \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n l\u1edbn h\u01a1n th\u00f4ng qua x\u1eed l\u00fd nhi\u1ec7t. Tuy nhi\u00ean, chi ph\u00ed cao h\u01a1n v\u00e0 c\u00e1c y\u00eau c\u1ea7u x\u1eed l\u00fd c\u1ee5 th\u1ec3 khi\u1ebfn n\u00f3 ph\u00f9 h\u1ee3p h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 \u00f4 t\u00f4 \u0111\u00f2i h\u1ecfi kh\u1eaft khe.<\/p><ul class=\"wp-block-list\"><li>Th\u00e9p AISI 4142 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c b\u00e1nh r\u0103ng, tr\u1ee5c khu\u1ef7u, tr\u1ee5c v\u00e0 thanh th\u1ee7y l\u1ef1c c\u00f3 \u0111\u1ed9 b\u1ec1n cao trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe nh\u01b0 \u00f4 t\u00f4, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 m\u00e1y m\u00f3c h\u1ea1ng n\u1eb7ng.<\/li><\/ul><h2 class=\"wp-block-heading\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a 4140 so v\u1edbi 4142<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Y\u1ebfu t\u1ed1<\/strong><\/td><td><strong>Th\u00e9p 4140<\/strong><\/td><td><strong>Th\u00e9p 4142<\/strong><\/td><\/tr><tr><td>Cacbon (C)<\/td><td>0.38-0.43%<\/td><td>0.40-0.45%<\/td><\/tr><tr><td>Crom (Cr)<\/td><td>0.80-1.10%<\/td><td>0.80-1.10%<\/td><\/tr><tr><td>Mangan (Mn)<\/td><td>0.75-1.00%<\/td><td>0.75-1.00%<\/td><\/tr><tr><td>Molip\u0111en (Mo)<\/td><td>0.15-0.25%<\/td><td>0.20-0.30%<\/td><\/tr><tr><td>Silic (Si)<\/td><td>0.15-0.35%<\/td><td>0.15-0.35%<\/td><\/tr><tr><td>Bo (B)<\/td><td>&#8211;<\/td><td>0.001-0.005%<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">H\u00e0m l\u01b0\u1ee3ng cacbon<\/h3><p>Th\u00e9p 4142 c\u00f3 h\u00e0m l\u01b0\u1ee3ng carbon cao h\u01a1n m\u1ed9t ch\u00fat (0,40-0,45%) so v\u1edbi th\u00e9p 4140 (0,38-0,43%). \u0110i\u1ec1u n\u00e0y th\u00fac \u0111\u1ea9y s\u1ef1 h\u00ecnh th\u00e0nh c\u00e1c c\u1ea5u tr\u00fac vi m\u00f4 c\u1ee9ng h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 cementite, trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t, c\u1ea3i thi\u1ec7n \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a th\u00e9p.<\/p><h3 class=\"wp-block-heading\">H\u00e0m l\u01b0\u1ee3ng Molypden<\/h3><p>Th\u00e9p 4142 c\u00f3 h\u00e0m l\u01b0\u1ee3ng molypden cao h\u01a1n m\u1ed9t ch\u00fat (0,20-0,30%) so v\u1edbi th\u00e9p 4140 (0,15-0,25%), gi\u00fap c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng t\u00f4i luy\u1ec7n b\u1eb1ng c\u00e1ch cho ph\u00e9p th\u00e9p t\u00f4i luy\u1ec7n \u0111\u1ec1u h\u01a1n v\u00e0 s\u00e2u h\u01a1n trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t. N\u00f3 c\u0169ng l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n b\u1eb1ng c\u00e1ch gia c\u1ed1 th\u00e9p.<\/p><h3 class=\"wp-block-heading\">H\u00e0m l\u01b0\u1ee3ng Bo<\/h3><p>Th\u00e9p 4142 ch\u1ee9a m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf boron (0,001-0,005%), gi\u00fap c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng t\u00f4i luy\u1ec7n trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t b\u1eb1ng c\u00e1ch cho ph\u00e9p th\u00e9p t\u00f4i luy\u1ec7n s\u00e2u h\u01a1n v\u00e0 \u0111\u1ed3ng \u0111\u1ec1u h\u01a1n. \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng kh\u00f4ng c\u00f3 trong th\u00e9p 4140.<\/p><h2 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p 4140 v\u00e0 th\u00e9p 4142<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>Th\u00e9p 4140<\/strong><\/td><td><strong>Th\u00e9p 4142<\/strong><\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n k\u00e9o<\/td><td>655 MPa (95.000 psi)<\/td><td>690 MPa (100.000 psi)<\/td><\/tr><tr><td>S\u1ee9c ch\u1ecbu l\u1ef1c<\/td><td>415 MPa (60.000 psi)<\/td><td>450 MPa (65.000 psi)<\/td><\/tr><tr><td>\u0110\u1ed9 gi\u00e3n d\u00e0i khi \u0111\u1ee9t<\/td><td>20-25%<\/td><td>20-25%<\/td><\/tr><tr><td>\u0110\u1ed9 c\u1ee9ng (HB)<\/td><td>197 HB<\/td><td>200 HB<\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n va \u0111\u1eadp<\/td><td>27 J (20 ft-lb)<\/td><td>30 J (22 ft-lb)<\/td><\/tr><tr><td>T\u1ef7 s\u1ed1 Poisson<\/td><td>0.29<\/td><td>0.29<\/td><\/tr><\/tbody><\/table><\/figure><p>C\u1ea3 hai <strong>4140<\/strong> V\u00e0 <strong>4142 th\u00e9p<\/strong> cung c\u1ea5p \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 d\u1ebbo dai t\u1ed1t, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady d\u01b0\u1edbi t\u1ea3i tr\u1ecdng trung b\u00ecnh \u0111\u1ebfn cao. Ch\u00fang c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng \u0111\u00e1ng k\u1ec3 sau khi x\u1eed l\u00fd nhi\u1ec7t th\u00edch h\u1ee3p, m\u1eb7c d\u00f9 4142 c\u00f3 xu h\u01b0\u1edbng cung c\u1ea5p \u0111\u1ed9 c\u1ee9ng s\u00e2u h\u01a1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf c\u00e1c ph\u1ea7n d\u00e0y h\u01a1n.<\/p><p>So v\u1edbi th\u00e9p 4240, th\u00e9p 4142 c\u00f3 h\u00e0m l\u01b0\u1ee3ng carbon v\u00e0 crom cao h\u01a1n, mang l\u1ea1i \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng t\u00f4i luy\u1ec7n v\u01b0\u1ee3t tr\u1ed9i. N\u00f3 ho\u1ea1t \u0111\u1ed9ng c\u1ef1c k\u1ef3 t\u1ed1t trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc v\u01b0\u1ee3t tr\u1ed9i.<\/p><h2 class=\"wp-block-heading\">\u01afu \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a th\u00e9p 4140 so v\u1edbi th\u00e9p 4142<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Lo\u1ea1i th\u00e9p<\/strong><\/td><td><strong>Thu\u1eadn l\u1ee3i<\/strong><\/td><td><strong>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/strong><\/td><\/tr><tr><td rowspan=\"2\">Th\u00e9p 4142<\/td><td>\u0110\u1ed9 b\u1ec1n, \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng t\u00f4i luy\u1ec7n cao h\u01a1n do h\u00e0m l\u01b0\u1ee3ng carbon v\u00e0 crom t\u0103ng l\u00ean.<\/td><td>\u0110\u1eaft h\u01a1n 4140.<\/td><\/tr><tr><td>Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t h\u01a1n v\u00e0 \u0111\u1ed9 c\u1ee9ng cao h\u01a1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf nh\u1eefng ph\u1ea7n d\u00e0y h\u01a1n.<\/td><td>Kh\u00f3 gia c\u00f4ng h\u01a1n so v\u1edbi 4140.<\/td><\/tr><tr><td rowspan=\"2\">Th\u00e9p 4140<\/td><td>S\u1ef1 c\u00e2n b\u1eb1ng tuy\u1ec7t v\u1eddi gi\u1eefa \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 d\u1ebbo dai v\u00e0 kh\u1ea3 n\u0103ng gia c\u00f4ng.<\/td><td>\u0110\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n th\u1ea5p h\u01a1n 4142, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf c\u00e1c ph\u1ea7n d\u00e0y h\u01a1n.<\/td><\/tr><tr><td>Ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 m\u1ee5c \u0111\u00edch chung.<\/td><td>&#8211;<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng kh\u00e1c nhau c\u1ee7a th\u00e9p 4140 v\u00e0 4142<\/h2><p>\u1ee8ng d\u1ee5ng c\u1ee7a AISI 4140 v\u00e0 AISI 4142 kh\u00e1 gi\u1ed1ng nhau, v\u00ec c\u1ea3 hai \u0111\u1ec1u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 d\u1ebbo dai v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao. Nh\u1eefng v\u1eadt li\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c l\u0129nh v\u1ef1c nh\u01b0 \u00f4 t\u00f4, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 m\u00e1y m\u00f3c h\u1ea1ng n\u1eb7ng. C\u1ea3 hai lo\u1ea1i th\u00e9p \u0111\u1ec1u ph\u00f9 h\u1ee3p \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c b\u1ed9 ph\u1eadn nh\u01b0 b\u00e1nh r\u0103ng, tr\u1ee5c, tr\u1ee5c khu\u1ef7u, tr\u1ee5c v\u00e0 thanh th\u1ee7y l\u1ef1c.<\/p><p>Tuy nhi\u00ean, s\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh n\u1eb1m \u1edf m\u1ee9c \u0111\u1ed9 hi\u1ec7u su\u1ea5t y\u00eau c\u1ea7u.<\/p><p>AISI 4140 ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng th\u00f4ng th\u01b0\u1eddng. AISI 4142, v\u1edbi h\u00e0m l\u01b0\u1ee3ng h\u1ee3p kim cao h\u01a1n, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c b\u1ed9 ph\u1eadn \u0111\u00f2i h\u1ecfi kh\u1eaft khe h\u01a1n, hi\u1ec7u su\u1ea5t cao nh\u01b0 c\u00e1c th\u00e0nh ph\u1ea7n h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 tr\u1ee5c ch\u1ecbu t\u1ea3i n\u1eb7ng, n\u01a1i c\u1ea7n \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u01b0\u1ee3t tr\u1ed9i.<\/p><h2 class=\"wp-block-heading\">S\u1ea3n ph\u1ea9m th\u00e9p 4140 v\u00e0 4142: Ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a b\u1ea1n<\/h2><p>T\u1ea1i SteelPro Group, ch\u00fang t\u00f4i cung c\u1ea5p c\u00e1c s\u1ea3n ph\u1ea9m th\u00e9p ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u00e1p \u1ee9ng c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u1ec1 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc cho c\u1ea3 th\u00e9p 4140 v\u00e0 4142. Ch\u00fang t\u00f4i cung c\u1ea5p nhi\u1ec1u t\u00f9y ch\u1ecdn x\u1eed l\u00fd, bao g\u1ed3m th\u1ea5m nit\u01a1, \u1ee7 v\u00e0 nhi\u1ec1u t\u00f9y ch\u1ecdn kh\u00e1c, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u trong c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n.<\/p><p>Ch\u00fang t\u00f4i c\u0169ng cung c\u1ea5p <a href=\"https:\/\/steelprogroup.com\/vi\/tool-steel\/cr12mov\/\">th\u00e9p dao nh\u01b0 D2<\/a>. Cho d\u00f9 b\u1ea1n c\u1ea7n \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 c\u1ee9ng hay kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u01b0\u1ee3t tr\u1ed9i, c\u00e1c s\u1ea3n ph\u1ea9m \u0111a n\u0103ng c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00f9y ch\u1ec9nh \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n!<\/p>","protected":false},"excerpt":{"rendered":"<p>AISI 4140 and AISI 4142 are both alloy steels with similar properties. The main difference is that 4142 has slightly [&hellip;]<\/p>","protected":false},"author":12,"featured_media":20423,"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":[4303,4293],"tags":[],"class_list":["post-20417","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-comparison-tool-steel","category-tool-steel"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/20417","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=20417"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/20417\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/20423"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=20417"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=20417"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=20417"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}