{"id":20260,"date":"2025-01-08T10:07:00","date_gmt":"2025-01-08T02:07:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=20260"},"modified":"2025-01-09T17:03:24","modified_gmt":"2025-01-09T09:03:24","slug":"a2-vs-d2","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/tool-steel\/comparison\/a2-vs-d2\/","title":{"rendered":"Th\u00e9p c\u00f4ng c\u1ee5 A2 so v\u1edbi D2: So s\u00e1nh th\u00e9p l\u00e0m vi\u1ec7c ngu\u1ed9i"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Th\u00e9p c\u00f4ng c\u1ee5 A2 v\u00e0 D2 \u0111\u1ec1u l\u00e0 th\u00e9p c\u00f4ng c\u1ee5 gia c\u00f4ng ngu\u1ed9i c\u00f3 h\u00e0m l\u01b0\u1ee3ng cacbon v\u00e0 crom cao. Th\u00e9p A2 c\u00f3 s\u1ef1 c\u00e2n b\u1eb1ng t\u1ed1t gi\u1eefa \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c c\u00f4ng c\u1ee5 y\u00eau c\u1ea7u kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u1eeba ph\u1ea3i v\u00e0 \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp cao.<\/p><p class=\"wp-block-paragraph\">Ng\u01b0\u1ee3c l\u1ea1i, D2 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao h\u01a1n. H\u00e0m l\u01b0\u1ee3ng carbon v\u00e0 crom cao h\u01a1n mang l\u1ea1i kh\u1ea3 n\u0103ng gi\u1eef c\u1ea1nh v\u00e0 hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i trong m\u00f4i tr\u01b0\u1eddng ch\u1ecbu m\u00e0i m\u00f2n cao. So v\u1edbi A2, n\u00f3 hy sinh m\u1ed9t s\u1ed1 \u0111\u1ed9 b\u1ec1n.<\/p><p class=\"wp-block-paragraph\">D\u1ef1a tr\u00ean kinh nghi\u1ec7m l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c c\u00f4ng ty kh\u00e1c c\u1ee7a SteelPro Group, c\u1ea3 th\u00e9p c\u00f4ng c\u1ee5 A2 v\u00e0 D2 \u0111\u1ec1u c\u1ea7n thi\u1ebft trong c\u00e1c \u1ee9ng d\u1ee5ng gia c\u00f4ng ngu\u1ed9i nh\u01b0 d\u1ee5ng c\u1ee5 c\u1eaft, \u0111\u1ee5c v\u00e0 khu\u00f4n. N\u1ebfu b\u1ea1n kh\u00f4ng ch\u1eafc ch\u1eafn n\u00ean ch\u1ecdn lo\u1ea1i n\u00e0o, quy\u1ebft \u0111\u1ecbnh cu\u1ed1i c\u00f9ng ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c b\u1ea1n \u01b0u ti\u00ean \u0111\u1ed9 b\u1ec1n (A2) hay kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 c\u1ee9ng (D2).<\/p><h2 class=\"wp-block-heading\">Th\u00e9p c\u00f4ng c\u1ee5 A2 v\u00e0 D2 c\u00f3 t\u00ednh ch\u1ea5t kh\u00e1c nhau<\/h2><p class=\"wp-block-paragraph\">\u0110\u1ec3 gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa th\u00e9p c\u00f4ng c\u1ee5 A2 v\u00e0 D2, b\u1ea3ng sau \u0111\u00e2y so s\u00e1nh c\u00e1c \u0111\u1eb7c t\u00ednh ch\u00ednh c\u1ee7a ch\u00fang.&nbsp;<\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>Th\u00e9p c\u00f4ng c\u1ee5 A2<\/strong><\/td><td><strong>Th\u00e9p c\u00f4ng c\u1ee5 D2<\/strong><\/td><\/tr><tr><td>\u0110\u1ed9 c\u1ee9ng<\/td><td>57-62 HRC<\/td><td>58-64 HRC<\/td><\/tr><tr><td>Ch\u1ed1ng \u0103n m\u00f2n<\/td><td>V\u1eeba ph\u1ea3i<\/td><td>Cao c\u1ea5p (h\u00e0m l\u01b0\u1ee3ng crom cao h\u01a1n)<\/td><\/tr><tr><td>Ch\u1ed1ng m\u00e0i m\u00f2n<\/td><td>V\u1eeba ph\u1ea3i<\/td><td>Cao c\u1ea5p (h\u00e0m l\u01b0\u1ee3ng cacbon v\u00e0 crom cao h\u01a1n)<\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n<\/td><td>\u0110\u1ed9 b\u1ec1n cao h\u01a1n, kh\u1ea3 n\u0103ng ch\u1ed1ng s\u1ed1c t\u1ed1t h\u01a1n<\/td><td>\u0110\u1ed9 d\u1ebbo dai th\u1ea5p h\u01a1n, gi\u00f2n h\u01a1n<\/td><\/tr><tr><td>Kh\u1ea3 n\u0103ng gia c\u00f4ng<\/td><td>Kh\u1ea3 n\u0103ng gia c\u00f4ng t\u1ed1t h\u01a1n \u1edf tr\u1ea1ng th\u00e1i \u1ee7<\/td><td>Kh\u00f3 gia c\u00f4ng h\u01a1n do h\u00e0m l\u01b0\u1ee3ng cacbua cao h\u01a1n<\/td><\/tr><tr><td>X\u1eed l\u00fd nhi\u1ec7t<\/td><td>X\u1eed l\u00fd nhi\u1ec7t \u0111\u01a1n gi\u1ea3n h\u01a1n, \u00edt b\u1ecb bi\u1ebfn d\u1ea1ng h\u01a1n<\/td><td>X\u1eed l\u00fd nhi\u1ec7t ph\u1ee9c t\u1ea1p h\u01a1n, nguy c\u01a1 bi\u1ebfn d\u1ea1ng cao h\u01a1n<\/td><\/tr><tr><td>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc<\/td><td>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc t\u1ed1t trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t<\/td><td>D\u1ec5 thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t<\/td><\/tr><tr><td>Gi\u1eef c\u1ea1nh<\/td><td>Gi\u1eef c\u1ea1nh t\u1ed1t<\/td><td>Gi\u1eef c\u1ea1nh tuy\u1ec7t v\u1eddi, v\u01b0\u1ee3t tr\u1ed9i h\u01a1n A2<\/td><\/tr><tr><td>Tr\u1ecb gi\u00e1<\/td><td>N\u00f3i chung l\u00e0 r\u1ebb h\u01a1n<\/td><td>\u0110\u1eaft h\u01a1n do h\u00e0m l\u01b0\u1ee3ng h\u1ee3p kim cao h\u01a1n<\/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 A2 so v\u1edbi D2<\/h2><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Y\u1ebfu t\u1ed1<\/strong><\/td><td><strong>Th\u00e9p c\u00f4ng c\u1ee5 A2 (%)<\/strong><\/td><td><strong>Th\u00e9p c\u00f4ng c\u1ee5 D2 (%)<\/strong><\/td><\/tr><tr><td>Cacbon (C)<\/td><td>1.00%<\/td><td>1,4 \u2013 1,6%<\/td><\/tr><tr><td>Mangan (Mn)<\/td><td>0.75%<\/td><td>\u2264 0,60%<\/td><\/tr><tr><td>Silic (Si)<\/td><td>0.30%<\/td><td>\u2264 0,60%<\/td><\/tr><tr><td>Crom (Cr)<\/td><td>5.00%<\/td><td>11 \u2013 13%<\/td><\/tr><tr><td>Molip\u0111en (Mo)<\/td><td>1.00%<\/td><td>0,70 \u2013 1,2%<\/td><\/tr><tr><td>Vanadi (V)<\/td><td>0.25%<\/td><td>\u2264 1,1%<\/td><\/tr><tr><td>Niken (Ni)<\/td><td>T\u1ed1i \u0111a 0,30%<\/td><td>&#8211;<\/td><\/tr><tr><td>Ph\u1ed1t pho (P)<\/td><td>0,03% T\u1ed1i \u0111a<\/td><td>\u2264 0,030%<\/td><\/tr><tr><td>L\u01b0u hu\u1ef3nh (S)<\/td><td>0,03% T\u1ed1i \u0111a<\/td><td>\u2264 0,030%<\/td><\/tr><tr><td>Coban (Co)<\/td><td>&#8211;<\/td><td>\u2264 1,0%<\/td><\/tr><\/tbody><\/table><\/figure><ul class=\"wp-block-list\"><li>H\u00e0m l\u01b0\u1ee3ng Carbon kh\u00e1c nhau<\/li><\/ul><p class=\"wp-block-paragraph\">A2 ch\u1ee9a 1,00% carbon, trong khi D2 c\u00f3 ph\u1ea1m vi cao h\u01a1n t\u1eeb 1,4% \u0111\u1ebfn 1,6%. H\u00e0m l\u01b0\u1ee3ng carbon cao h\u01a1n trong D2 l\u00e0m t\u0103ng \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n. H\u00e0m l\u01b0\u1ee3ng carbon th\u1ea5p h\u01a1n c\u1ee7a A2 mang l\u1ea1i \u0111\u1ed9 b\u1ec1n t\u1ed1t h\u01a1n trong khi v\u1eabn duy tr\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n hi\u1ec7u qu\u1ea3.<\/p><ul class=\"wp-block-list\"><li>Th\u00e0nh ph\u1ea7n h\u1ee3p kim kh\u00e1c nhau<\/li><\/ul><p class=\"wp-block-paragraph\">A2 c\u00f3 5.00% crom, trong khi D2 ch\u1ee9a 11% \u0111\u1ebfn 13%. D2 ch\u1ee9a nhi\u1ec1u crom h\u01a1n, mang l\u1ea1i kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0103n m\u00f2n t\u1ed1t h\u01a1n so v\u1edbi A2. Ngo\u00e0i ra, h\u00e0m l\u01b0\u1ee3ng molypden v\u00e0 vanadi t\u0103ng l\u00ean c\u1ee7a D2 gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n v\u00e0 hi\u1ec7u su\u1ea5t ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao.<\/p><p class=\"wp-block-paragraph\">A2 cung c\u1ea5p gi\u1ea3i ph\u00e1p \u0111a n\u0103ng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n c\u1ea3 \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n.<\/p><h2 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A2 so v\u1edbi D2<\/h2><h3 class=\"wp-block-heading\">C\u00f4ng d\u1ee5ng c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A2<\/h3><ol class=\"wp-block-list\"><li><strong>\u0110\u1ea5m v\u00e0 Ch\u1ebft<\/strong>: D\u00e0nh cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 t\u00e1c \u0111\u1ed9ng v\u1eeba ph\u1ea3i, ch\u1eb3ng h\u1ea1n nh\u01b0 d\u1ee5ng c\u1ee5 t\u1ea1o h\u00ecnh v\u00e0 \u0111\u1ee5c l\u1ed7.<\/li>\n\n<li><strong>D\u1ee5ng c\u1ee5 c\u1eaft<\/strong>: D\u00f9ng cho dao, dao doa v\u00e0 \u0111\u1ee5c, nh\u1eefng v\u1eadt d\u1ee5ng c\u1ea7n c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp.<\/li>\n\n<li><strong>Khu\u00f4n d\u1eadp<\/strong>: \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9t d\u1eadp khi c\u1ea7n \u0111\u1ed9 b\u1ec1n cao m\u00e0 kh\u00f4ng c\u1ea7n kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n qu\u00e1 m\u1ee9c.<\/li>\n\n<li><strong>Khu\u00f4n m\u1eabu cho s\u1ea3n xu\u1ea5t s\u1ed1 l\u01b0\u1ee3ng \u00edt<\/strong>: Th\u00edch h\u1ee3p cho c\u00e1c \u0111\u1ee3t s\u1ea3n xu\u1ea5t nh\u1ecf, y\u00eau c\u1ea7u \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n \u1edf m\u1ee9c trung b\u00ecnh.<\/li>\n\n<li><strong>D\u1ee5ng c\u1ee5 \u0111\u1ec3 d\u1eadp v\u00e0 \u0111\u00f9n<\/strong>: D\u00e0nh cho c\u00e1c d\u1ee5ng c\u1ee5 ch\u1ecbu m\u00e0i m\u00f2n v\u1eeba ph\u1ea3i v\u00e0 ch\u1ecbu \u1ee9ng su\u1ea5t kh\u00f4ng li\u00ean t\u1ee5c.<\/li><\/ol><h3 class=\"wp-block-heading\">C\u00f4ng d\u1ee5ng c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 D2<\/h3><ol class=\"wp-block-list\"><li><strong>D\u1ee5ng c\u1ee5 c\u1eaft<\/strong>: D\u00e0nh cho khu\u00f4n t\u1ea1o h\u00ecnh ngu\u1ed9i, m\u00e1y c\u1eaft v\u00e0 l\u01b0\u1ee1i c\u1eaft, trong \u0111\u00f3 kh\u1ea3 n\u0103ng gi\u1eef c\u1ea1nh v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n \u0111\u1eb7c bi\u1ec7t l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/li>\n\n<li><strong>\u0110\u1ea5m v\u00e0 Ch\u1ebft<\/strong>: D\u00e0nh cho c\u00e1c \u1ee9ng d\u1ee5ng d\u1eadp v\u00e0 c\u1eaft khu\u00f4n ch\u1ecbu t\u1ea3i n\u1eb7ng v\u00e0 c\u00f3 \u0111\u1ed9 m\u00e0i m\u00f2n cao.<\/li>\n\n<li><strong>Khu\u00f4n m\u1eabu cho s\u1ea3n xu\u1ea5t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn<\/strong>: Th\u00edch h\u1ee3p cho \u0111\u00fac nh\u1ef1a v\u00e0 \u0111\u00fac khu\u00f4n, n\u01a1i c\u1ea7n \u0111\u1ed9 b\u1ec1n l\u00e2u d\u00e0i.<\/li>\n\n<li><strong>D\u1ee5ng c\u1ee5 gia c\u00f4ng m\u00e0i m\u00f2n<\/strong>: \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c d\u1ee5ng c\u1ee5 ch\u1ecbu m\u00e0i m\u00f2n m\u1ea1nh, nh\u01b0 d\u1ee5ng c\u1ee5 m\u00e0i v\u00e0 c\u1eaft trong m\u00f4i tr\u01b0\u1eddng c\u00f3 \u0111\u1ed9 m\u00e0i m\u00f2n cao.<\/li><\/ol><p class=\"wp-block-paragraph\">V\u1ec1 b\u1ea3n ch\u1ea5t, h\u00e3y ch\u1ecdn A2 khi d\u1ee5ng c\u1ee5 c\u1ee7a b\u1ea1n c\u1ea7n h\u1ea5p th\u1ee5 s\u1ed1c v\u00e0 ch\u1ed1ng n\u1ee9t, nh\u01b0 trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng t\u1ea1o h\u00ecnh n\u1eb7ng. Ch\u1ecdn D2 khi \u01b0u ti\u00ean c\u1ee7a b\u1ea1n l\u00e0 gi\u1eef c\u1ea1nh s\u1eafc trong th\u1eddi gian d\u00e0i, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c quy tr\u00ecnh c\u1eaft ho\u1eb7c t\u1ea1o h\u00ecnh kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn, n\u01a1i kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/p><h2 class=\"wp-block-heading\">Quy tr\u00ecnh kh\u00e1c nhau c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A2 v\u00e0 D2<\/h2><h3 class=\"wp-block-heading\">X\u1eed l\u00fd nhi\u1ec7t<\/h3><p class=\"wp-block-paragraph\">Th\u00e9p c\u00f4ng c\u1ee5 A2 d\u1ec5 x\u1eed l\u00fd nhi\u1ec7t h\u01a1n. N\u00f3 n\u00f3ng l\u00ean v\u00e0 ngu\u1ed9i \u0111i v\u1edbi \u00edt nguy c\u01a1 cong v\u00eanh h\u01a1n. \u0110i\u1ec1u n\u00e0y l\u00e0m cho A2 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c c\u00f4ng c\u1ee5 c\u1ea7n duy tr\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c sau khi t\u00f4i. Tuy nhi\u00ean, D2 \u0111\u00f2i h\u1ecfi x\u1eed l\u00fd nhi\u1ec7t c\u1ea9n th\u1eadn h\u01a1n v\u00ec h\u00e0m l\u01b0\u1ee3ng carbon v\u00e0 crom cao h\u01a1n c\u00f3 th\u1ec3 khi\u1ebfn n\u00f3 thay \u0111\u1ed5i h\u00ecnh d\u1ea1ng trong qu\u00e1 tr\u00ecnh l\u00e0m m\u00e1t.&nbsp;<\/p><h3 class=\"wp-block-heading\">Gia c\u00f4ng<\/h3><p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi l\u00e0m c\u1ee9ng, <strong>A2<\/strong> d\u1ec5 gia c\u00f4ng h\u01a1n. Th\u00e0nh ph\u1ea7n c\u1ee7a n\u00f3 cho ph\u00e9p c\u1eaft v\u00e0 \u0111\u1ecbnh h\u00ecnh m\u1ecbn h\u01a1n, gi\u00fap t\u0103ng t\u1ed1c s\u1ea3n xu\u1ea5t v\u00e0 gi\u1ea3m hao m\u00f2n d\u1ee5ng c\u1ee5. <strong>Ng\u00e0y 2<\/strong> kh\u00f3 gia c\u00f4ng h\u01a1n v\u00ec n\u00f3 t\u1ea1o th\u00e0nh c\u00e1c h\u1ea1t c\u1ee9ng c\u00f3 th\u1ec3 l\u00e0m m\u00f2n d\u1ee5ng c\u1ee5 c\u1eaft nhanh h\u01a1n.&nbsp;<\/p><h2 class=\"wp-block-heading\">Th\u00e9p c\u00f4ng c\u1ee5 A2 v\u00e0 D2 cho nhu c\u1ea7u s\u1ea3n xu\u1ea5t c\u1ee7a b\u1ea1n<\/h2><p class=\"wp-block-paragraph\">Cho d\u00f9 b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u1eeba ph\u1ea3i v\u1edbi A2 hay \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng gi\u1eef c\u1ea1nh v\u01b0\u1ee3t tr\u1ed9i v\u1edbi <a href=\"https:\/\/steelprogroup.com\/vi\/tool-steel\/cr12mov\/\">Th\u00e9p D2<\/a>SteelPro Group c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh t\u1ed1t nh\u1ea5t.<\/p><p class=\"wp-block-paragraph\">V\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p v\u00e0 chuy\u00ean m\u00f4n s\u00e2u r\u1ed9ng trong ng\u00e0nh, SteelPro Group cung c\u1ea5p c\u00e1c d\u1ecbch v\u1ee5 gia c\u00f4ng ch\u00ednh x\u00e1c cho th\u00e9p c\u00f4ng c\u1ee5 A2 v\u00e0 D2, bao g\u1ed3m x\u1eed l\u00fd nhi\u1ec7t, gia c\u00f4ng v\u00e0 \u0111\u1ecbnh c\u1ee1 t\u00f9y ch\u1ec9nh \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Th\u00e9p c\u00f4ng c\u1ee5 A2 v\u00e0 D2 \u0111\u1ec1u l\u00e0 th\u00e9p c\u00f4ng c\u1ee5 gia c\u00f4ng ngu\u1ed9i c\u00f3 h\u00e0m l\u01b0\u1ee3ng cacbon v\u00e0 crom cao. A2 mang l\u1ea1i s\u1ef1 c\u00e2n b\u1eb1ng t\u1ed1t [\u2026]<\/p>","protected":false},"author":12,"featured_media":20251,"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-20260","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\/20260","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=20260"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/20260\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/20251"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=20260"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=20260"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=20260"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}