{"id":19838,"date":"2024-12-12T11:27:00","date_gmt":"2024-12-12T03:27:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=19838"},"modified":"2025-01-09T16:51:53","modified_gmt":"2025-01-09T08:51:53","slug":"a2","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/tool-steel\/grades\/a2\/","title":{"rendered":"Th\u00e9p c\u00f4ng c\u1ee5 A2: T\u00ednh ch\u1ea5t, \u1ee9ng d\u1ee5ng v\u00e0 so s\u00e1nh v\u1edbi th\u00e9p c\u00f4ng c\u1ee5 D2"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Th\u00e9p c\u00f4ng c\u1ee5 A2 l\u00e0 g\u00ec?<\/h2><p>Th\u00e9p c\u00f4ng c\u1ee5 A2 l\u00e0 th\u00e9p h\u1ee3p kim cr\u00f4m cacbon trung b\u00ecnh thu\u1ed9c nh\u00f3m th\u00e9p c\u00f4ng c\u1ee5 gia c\u00f4ng ngu\u1ed9i. N\u00f3 c\u00f3 \u0111\u1eb7c t\u00ednh l\u00e0m c\u1ee9ng b\u1eb1ng kh\u00f4ng kh\u00ed, c\u00f3 ngh\u0129a l\u00e0 n\u00f3 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng ho\u00e0n to\u00e0n (57-62 HRC) m\u00e0 kh\u00f4ng c\u1ea7n l\u00e0m ngu\u1ed9i trong d\u1ea7u ho\u1eb7c n\u01b0\u1edbc. V\u1edbi h\u00e0m l\u01b0\u1ee3ng cr\u00f4m 5%, lo\u1ea1i th\u00e9p n\u00e0y c\u00f3 s\u1ef1 c\u00e2n b\u1eb1ng t\u1ed1t gi\u1eefa \u0111\u1ed9 d\u1ebbo dai v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n, l\u00e0m cho n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p.<\/p><p>SteelPRO Group chuy\u00ean cung c\u1ea5p th\u00e9p A2 c\u00f3 \u0111\u1ed9 b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i v\u00e0 d\u1ec5 gia c\u00f4ng. So v\u1edbi O1, A2 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n t\u1ed1t h\u01a1n, \u0111\u1ed3ng th\u1eddi d\u1ec5 gia c\u00f4ng h\u01a1n th\u00e9p c\u00f4ng c\u1ee5 D2 c\u1ee9ng h\u01a1n, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng cho nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p kh\u00e1c nhau.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p c\u00f4ng c\u1ee5 A2 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi c\u00e1i g\u00ec?<\/h3><p>T\u1ea1i SteelPRO Group, ch\u00fang t\u00f4i cung c\u1ea5p th\u00e9p c\u00f4ng c\u1ee5 A2 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf, \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi nhi\u1ec1u ho\u1ea1t \u0111\u1ed9ng s\u1ea3n xu\u1ea5t to\u00e0n c\u1ea7u. Sau \u0111\u00e2y l\u00e0 c\u00e1c lo\u1ea1i th\u00e9p c\u00f4ng c\u1ee5 A2 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng ph\u1ed5 bi\u1ebfn:<\/p><p>1. DIN (\u0110\u1ee9c): 1.2363<\/p><p>2. JIS (Nh\u1eadt B\u1ea3n): SKD12<\/p><p>3. EN (Ti\u00eau chu\u1ea9n Ch\u00e2u \u00c2u): X153CrMoV12<\/p><p>4. BS (Ti\u00eau chu\u1ea9n Anh): BS 4659 (C\u1ea5p 1)<\/p><p>5. AFNOR (Ph\u00e1p): Z40CDV5<\/p><p>6. UNS (M\u1ef9): T30102<\/p><h2 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A2<\/h2><p>T\u1ea1i SteelPRO Group, ch\u00fang t\u00f4i hi\u1ec3u r\u1eb1ng s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa \u0111\u1ed9 b\u1ec1n, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 kh\u1ea3 n\u0103ng gia c\u00f4ng c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A2 l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ea3n ph\u1ea9m c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng t\u1ed1t nh\u1ea5t. Th\u00e9p A2 c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n cao nh\u1ea5t, mang l\u1ea1i hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p kh\u00e1c nhau, t\u1eeb s\u1ea3n xu\u1ea5t c\u00f4ng c\u1ee5 \u0111\u1ebfn c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh x\u00e1c.<\/p><h3 class=\"wp-block-heading\">C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A2<\/h3><ul class=\"wp-block-list\"><li>\u0110\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao: \u0110\u1ed9 c\u1ee9ng c\u00f3 th\u1ec3 \u0111\u1ea1t 57~62HRC sau khi x\u1eed l\u00fd nhi\u1ec7t, h\u00e0m l\u01b0\u1ee3ng carbon v\u00e0 crom cao gi\u00fap ch\u1ed1ng m\u00e0i m\u00f2n tuy\u1ec7t v\u1eddi.<\/li>\n\n<li>\u0110\u1ed9 d\u1ebbo dai t\u1ed1t: Kh\u00f4ng d\u1ec5 v\u1ee1 khi ch\u1ecbu va \u0111\u1eadp, u\u1ed1n cong, th\u00edch h\u1ee3p \u0111\u1ec3 ch\u1ebf t\u1ea1o khu\u00f4n m\u1eabu, d\u1ee5ng c\u1ee5 c\u1ea7n ch\u1ecbu l\u1ef1c va \u0111\u1eadp l\u1edbn.<\/li>\n\n<li>Kh\u1ea3 n\u0103ng l\u00e0m c\u1ee9ng tuy\u1ec7t v\u1eddi: C\u00e1c lo\u1ea1i cacbua \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5 \u0111\u1ec1u v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a to\u00e0n b\u1ed9 m\u1eb7t c\u1eaft \u0111\u1ed3ng \u0111\u1ec1u sau khi t\u00f4i, gi\u00fap c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3.<\/li>\n\n<li>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh v\u1ec1 k\u00edch th\u01b0\u1edbc: S\u1ef1 thay \u0111\u1ed5i v\u1ec1 k\u00edch th\u01b0\u1edbc nh\u1ecf sau khi x\u1eed l\u00fd nhi\u1ec7t, th\u00edch h\u1ee3p \u0111\u1ec3 s\u1ea3n xu\u1ea5t khu\u00f4n m\u1eabu v\u00e0 d\u1ee5ng c\u1ee5 c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/li>\n\n<li>D\u1ec5 gia c\u00f4ng v\u00e0 \u0111\u00e1nh b\u00f3ng: C\u00f3 th\u1ec3 ti\u1ec7n, phay, khoan v\u00e0 m\u00e0i, b\u1ec1 m\u1eb7t nh\u1eb5n m\u1ecbn sau khi \u0111\u00e1nh b\u00f3ng.<\/li>\n\n<li>Duy tr\u00ec \u0111\u1ed9 c\u1ee9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao: \u0110\u1ed9 c\u1ee9ng cao \u1edf nhi\u1ec7t \u0111\u1ed9 cao, th\u00edch h\u1ee3p cho vi\u1ec7c c\u1eaft \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/li><\/ul><h3 class=\"wp-block-heading\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A2<\/h3><p>T\u1ea1i SteelPRO Group, ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o th\u00e9p A2 c\u1ee7a ch\u00fang t\u00f4i duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1i \u01b0u v\u1edbi kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c c\u00e1c nguy\u00ean t\u1ed1 h\u1ee3p kim.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td>Y\u1ebfu t\u1ed1<\/td><td>Ph\u1ea7n tr\u0103m (%)<\/td><\/tr><tr><td>Cacbon (C)<\/td><td>1.00%<\/td><\/tr><tr><td>Mangan (Mn)<\/td><td>0.75%<\/td><\/tr><tr><td>Silic (Si)<\/td><td>0.30%<\/td><\/tr><tr><td>Crom (Cr)<\/td><td>5.00%<\/td><\/tr><tr><td>Molip\u0111en (Mo)<\/td><td>1.00%<\/td><\/tr><tr><td>Vanadi (V)<\/td><td>0.25%<\/td><\/tr><tr><td>Niken (Ni)<\/td><td>T\u1ed1i \u0111a 0,30%<\/td><\/tr><tr><td>Ph\u1ed1t pho (P)<\/td><td>0,03% T\u1ed1i \u0111a<\/td><\/tr><tr><td>L\u01b0u hu\u1ef3nh (S)<\/td><td>0,03% T\u1ed1i \u0111a<\/td><\/tr><\/tbody><\/table><\/figure><p>H\u00e0m l\u01b0\u1ee3ng crom cao (5%) l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 ch\u1ed1ng m\u00e0i m\u00f2n, trong khi molypden (1%) g\u00f3p ph\u1ea7n t\u1ea1o n\u00ean \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 c\u1ee9ng. Vanadi l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 bi\u1ebfn d\u1ea1ng c\u1ee7a th\u00e9p, \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n v\u00e0 \u0111\u1ed9 tin c\u1eady m\u00e0 ho\u1ea1t \u0111\u1ed9ng c\u00f4ng nghi\u1ec7p c\u1ee7a b\u1ea1n y\u00eau c\u1ea7u.<\/p><h3 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A2<\/h3><figure class=\"wp-block-table\"><table><tbody><tr><td>T\u00e0i s\u1ea3n<\/td><td>Gi\u00e1 tr\u1ecb<\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n k\u00e9o<\/td><td>170.000 \u2013 220.000 psi (1170 \u2013 1517 MPa)<\/td><\/tr><tr><td>S\u1ee9c ch\u1ecbu l\u1ef1c<\/td><td>160.000 psi (1100 MPa)<\/td><\/tr><tr><td>\u0110\u1ed9 c\u1ee9ng (Rockwell C)<\/td><td>57-62 HRC<\/td><\/tr><tr><td>M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i<\/td><td>30 x 10\u2076 psi (207 GPa)<\/td><\/tr><tr><td>T\u1ef7 s\u1ed1 Poisson<\/td><td>0.3<\/td><\/tr><tr><td>Kh\u1ea3 n\u0103ng gia c\u00f4ng<\/td><td>70% c\u1ee7a Th\u00e9p Carbon 1%<\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n va \u0111\u1eadp<\/td><td>20-25 ft-lb \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A2<\/h3><figure class=\"wp-block-table\"><table><tbody><tr><td>T\u00e0i s\u1ea3n<\/td><td>Gi\u00e1 tr\u1ecb<\/td><\/tr><tr><td>T\u1ec9 tr\u1ecdng<\/td><td>0,284 lb\/in\u00b3 (7861 kg\/m\u00b3)<\/td><\/tr><tr><td>Tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang<\/td><td>7.86<\/td><\/tr><tr><td>\u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/td><td>21,7 W\/m\u00b7K (\u1edf 100\u00b0C)<\/td><\/tr><tr><td>S\u1ef1 gi\u00e3n n\u1edf v\u00ec nhi\u1ec7t<\/td><td>12,5 \u00b5m\/m\u00b7K (t\u1eeb 20-100\u00b0C)<\/td><\/tr><tr><td>M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i<\/td><td>207 GPa<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">X\u1eed l\u00fd nhi\u1ec7t th\u00e9p c\u00f4ng c\u1ee5 A2<\/h2><p>X\u1eed l\u00fd nhi\u1ec7t r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A2 v\u00e0 c\u00e1c quy tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t ti\u00ean ti\u1ebfn c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf c\u1ea9n th\u1eadn \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 b\u1ec1n v\u00e0 tu\u1ed5i th\u1ecd c\u1ea7n thi\u1ebft cho m\u1ecdi nhu c\u1ea7u v\u1ec1 d\u1ee5ng c\u1ee5 c\u1ee7a b\u1ea1n.<\/p><ul class=\"wp-block-list\"><li>Gi\u1ea3m \u1ee9ng su\u1ea5t: Ch\u00fang t\u00f4i nung A2 \u1edf nhi\u1ec7t \u0111\u1ed9 1100-1200\u00b0F (593-649\u00b0C) trong 1 gi\u1edd \u0111\u1ec3 gi\u1ea3m \u1ee9ng su\u1ea5t b\u00ean trong, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh t\u1ed1t h\u01a1n trong c\u00e1c giai \u0111o\u1ea1n x\u1eed l\u00fd sau.<\/li>\n\n<li>\u1ee6: A2 \u0111\u01b0\u1ee3c nung n\u00f3ng \u0111\u1ebfn 1550-1600\u00b0F (843-871\u00b0C) v\u00e0 l\u00e0m ngu\u1ed9i ch\u1eadm \u0111\u1ebfn 1000\u00b0F (538\u00b0C), l\u00e0m m\u1ec1m v\u1eadt li\u1ec7u \u0111\u1ec3 gia c\u00f4ng v\u00e0 \u0111\u1ecbnh h\u00ecnh d\u1ec5 d\u00e0ng h\u01a1n.<\/li>\n\n<li>L\u00e0m c\u1ee9ng: A2 \u0111\u01b0\u1ee3c nung \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 1750-1850\u00b0F (954-1010\u00b0C) v\u00e0 l\u00e0m ngu\u1ed9i trong kh\u00f4ng kh\u00ed \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng mong mu\u1ed1n v\u00e0 gi\u1ea3m thi\u1ec3u bi\u1ebfn d\u1ea1ng.<\/li>\n\n<li>L\u00e0m ngu\u1ed9i: Sau khi l\u00e0m c\u1ee9ng, ch\u00fang t\u00f4i l\u00e0m ngu\u1ed9i A2 \u1edf nhi\u1ec7t \u0111\u1ed9 400-1100\u00b0F (204-593\u00b0C), gi\u1ea3m \u1ee9ng su\u1ea5t v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1ebbo dai.<\/li>\n\n<li>L\u00e0m ngu\u1ed9i: \u0110\u1ed1i v\u1edbi th\u00e9p A2, qu\u00e1 tr\u00ecnh l\u00e0m ngu\u1ed9i th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong kh\u00f4ng kh\u00ed v\u00ec \u0111\u00e2y l\u00e0 th\u00e9p \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng b\u1eb1ng kh\u00f4ng kh\u00ed, gi\u00fap gi\u1ea3m thi\u1ec3u bi\u1ebfn d\u1ea1ng so v\u1edbi qu\u00e1 tr\u00ecnh l\u00e0m ngu\u1ed9i b\u1eb1ng n\u01b0\u1edbc ho\u1eb7c d\u1ea7u.<\/li>\n\n<li>Th\u1ea5m nit\u01a1: Ch\u00fang t\u00f4i \u00e1p d\u1ee5ng th\u1ea5m nit\u01a1 \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 c\u1ee9ng b\u1ec1 m\u1eb7t, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n m\u1ecfi, n\u00e2ng cao hi\u1ec7u su\u1ea5t c\u1ee7a th\u00e9p trong c\u00e1c \u1ee9ng d\u1ee5ng kh\u1eaft khe.<\/li><\/ul><h2 class=\"wp-block-heading\">Gia c\u00f4ng th\u00e9p c\u00f4ng c\u1ee5 A2<\/h2><p>T\u1ea1i SteelPRO Group, ch\u00fang t\u00f4i s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 m\u1edbi nh\u1ea5t \u0111\u1ec3 gia c\u00f4ng th\u00e9p c\u00f4ng c\u1ee5 A2 v\u1edbi n\u1ed7 l\u1ef1c t\u1ed1i thi\u1ec3u v\u00e0 hi\u1ec7u qu\u1ea3 t\u1ed1i \u0111a.<\/p><ul class=\"wp-block-list\"><li>H\u00e0n: Th\u00e9p A2 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u00e0n b\u1eb1ng c\u00e1c k\u1ef9 thu\u1eadt th\u00edch h\u1ee3p v\u00e0 gia nhi\u1ec7t tr\u01b0\u1edbc. Tuy nhi\u00ean, x\u1eed l\u00fd nhi\u1ec7t sau khi h\u00e0n (gi\u1ea3m \u1ee9ng su\u1ea5t) th\u01b0\u1eddng l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 gi\u1ea3m \u1ee9ng su\u1ea5t c\u00f3 th\u1ec3 g\u00e2y n\u1ee9t.<\/li>\n\n<li>N\u1ea5u ch\u1ea3y: Ch\u00fang t\u00f4i s\u1eed d\u1ee5ng l\u00f2 h\u1ed3 quang \u0111i\u1ec7n ho\u1eb7c l\u00f2 c\u1ea3m \u1ee9ng \u0111\u1ec3 duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c v\u00e0 b\u1ea3o to\u00e0n c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a h\u1ee3p kim.<\/li>\n\n<li>X\u1eed l\u00fd b\u1ec1 m\u1eb7t: \u0110\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n, A2 c\u00f3 th\u1ec3 tr\u1ea3i qua c\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd b\u1ec1 m\u1eb7t nh\u01b0 th\u1ea5m nit\u01a1, gi\u00fap t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 b\u1ec1n ch\u1ecbu m\u1ecfi.<\/li><\/ul><h2 class=\"wp-block-heading\">\u01afu \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A2<\/h2><h3 class=\"wp-block-heading\">Thu\u1eadn l\u1ee3i:<\/h3><ul class=\"wp-block-list\"><li>Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t: Th\u00e9p d\u1ee5ng c\u1ee5 A2 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n \u0111\u1eb7c bi\u1ec7t, l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p ch\u1ecbu m\u00e0i m\u00f2n cao, bao g\u1ed3m khu\u00f4n d\u1eadp v\u00e0 d\u1ee5ng c\u1ee5 c\u1eaft.<\/li>\n\n<li>\u0110\u1ed9 b\u1ec1n tuy\u1ec7t v\u1eddi: So v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p d\u1ee5ng c\u1ee5 c\u00f3 \u0111\u1ed9 c\u1ee9ng cao kh\u00e1c, A2 c\u00f3 th\u1ec3 mang l\u1ea1i \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp t\u1ed1t h\u01a1n trong khi v\u1eabn duy tr\u00ec \u0111\u1ed9 c\u1ee9ng t\u1ed1t, gi\u1ea3m nguy c\u01a1 g\u00e3y x\u01b0\u01a1ng.<\/li>\n\n<li>Hi\u1ec7u su\u1ea5t gia c\u00f4ng t\u1ed1t: Th\u00e9p A2 c\u00f3 hi\u1ec7u su\u1ea5t gia c\u00f4ng t\u01b0\u01a1ng \u0111\u1ed1i t\u1ed1t, d\u1ec5 ti\u1ec7n v\u00e0 phay, ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u gia c\u00f4ng ch\u00ednh x\u00e1c.<\/li>\n\n<li>T\u1ef1 l\u00e0m c\u1ee9ng: Th\u00e9p A2 c\u00f3 \u0111\u1eb7c t\u00ednh l\u00e0m c\u1ee9ng b\u1eb1ng kh\u00f4ng kh\u00ed v\u00e0 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng c\u1ea7n thi\u1ebft m\u00e0 kh\u00f4ng c\u1ea7n l\u00e0m c\u1ee9ng b\u1eb1ng d\u1ea7u ho\u1eb7c n\u01b0\u1edbc, gi\u00fap gi\u1ea3m c\u00e1c v\u1ea5n \u0111\u1ec1 bi\u1ebfn d\u1ea1ng trong qu\u00e1 tr\u00ecnh l\u00e0m c\u1ee9ng.<\/li>\n\n<li>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t cao h\u01a1n: C\u00f3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t cao v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/li><\/ul><h3 class=\"wp-block-heading\">Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/h3><p><strong>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p: <\/strong>Trong khi th\u00e9p A2 ch\u1ee9a crom \u0111\u1ec3 ch\u1ed1ng \u0103n m\u00f2n, hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3 v\u1ec1 m\u1eb7t n\u00e0y th\u1ea5p h\u01a1n so v\u1edbi th\u00e9p nh\u01b0 D2, c\u00f3 h\u00e0m l\u01b0\u1ee3ng crom cao h\u01a1n. SteelPRO Group cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p, bao g\u1ed3m x\u1eed l\u00fd b\u1ec1 m\u1eb7t, \u0111\u1ec3 gi\u00fap gi\u1ea3m thi\u1ec3u nh\u01b0\u1ee3c \u0111i\u1ec3m n\u00e0y v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n khi c\u1ea7n thi\u1ebft.<\/p><p><strong>Gi\u1edbi h\u1ea1n \u0111\u1ed9 c\u1ee9ng d\u01b0\u1edbi:<\/strong> M\u1eb7c d\u00f9 th\u00e9p A2 c\u00f3 \u0111\u1ed9 c\u1ee9ng t\u1eeb 57-62 HRC nh\u01b0ng \u0111\u1ed9 c\u1ee9ng c\u1ee7a n\u00f3 th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p nh\u01b0 D2 (c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng 64 HRC) v\u00e0 c\u00f3 th\u1ec3 kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n c\u1ef1c cao.<\/p><p><strong>Y\u00eau c\u1ea7u x\u1eed l\u00fd nhi\u1ec7t cao:<\/strong> \u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 d\u1ebbo dai t\u1ed1i \u01b0u v\u1edbi th\u00e9p c\u00f4ng c\u1ee5 A2 \u0111\u00f2i h\u1ecfi c\u00e1c quy tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t ch\u00ednh x\u00e1c. SteelPRO Group s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 x\u1eed l\u00fd nhi\u1ec7t ti\u00ean ti\u1ebfn \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o th\u00e9p A2 \u0111\u1ea1t \u0111\u01b0\u1ee3c ti\u1ec1m n\u0103ng t\u1ed1i \u0111a, gi\u1ea3m thi\u1ec3u m\u1ecdi r\u1ee7i ro v\u1ec1 \u0111\u1ed9 c\u1ee9ng ho\u1eb7c \u0111\u1ed9 d\u1ebbo dai kh\u00f4ng t\u1ed1i \u01b0u.<\/p><h2 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng th\u00e9p c\u00f4ng c\u1ee5 A2<\/h2><p>\u0110\u1ed9i ng\u0169 chuy\u00ean gia c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o r\u1eb1ng th\u00e9p A2 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a t\u1eebng \u1ee9ng d\u1ee5ng, mang l\u1ea1i hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i v\u00e0 \u0111\u1ed9 b\u1ec1n l\u00e2u d\u00e0i. Sau \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 c\u00f4ng d\u1ee5ng ph\u1ed5 bi\u1ebfn c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A2:<\/p><ul class=\"wp-block-list\"><li>Khu\u00f4n \u0111\u1ed9t v\u00e0 khu\u00f4n d\u1eadp: Khu\u00f4n \u0111\u1ed9t, khu\u00f4n \u0111\u1ecbnh h\u00ecnh v\u00e0 khu\u00f4n c\u1eaft, khu\u00f4n d\u1eadp n\u1ed5i v\u00e0 khu\u00f4n l\u0103n ch\u1ec9.<\/li>\n\n<li>D\u1ee5ng c\u1ee5 c\u1eaft: D\u1ee5ng c\u1ee5 t\u1ea1o h\u00ecnh ngu\u1ed9i, tr\u1ee5c ch\u00ednh, l\u01b0\u1ee1i c\u1eaft, l\u01b0\u1ee1i c\u1eaft r\u00e3nh.<\/li>\n\n<li>Khu\u00f4n m\u1eabu v\u00e0 \u0111\u1ed3ng h\u1ed3 \u0111o: \u0110\u1ed3ng h\u1ed3 \u0111o kh\u1ed1i v\u00e0 v\u00f2ng, t\u1ea5m \u0111\u1ed9t, m\u00e1y doa.<\/li>\n\n<li>D\u1ee5ng c\u1ee5 c\u00f4ng nghi\u1ec7p: B\u00faa, dao c\u00f4ng nghi\u1ec7p, m\u0169i kh\u00eda, d\u1ee5ng c\u1ee5 kh\u00eda.<\/li><\/ul><h3 class=\"wp-block-heading\">Th\u00e9p d\u1ee5ng c\u1ee5 A2 c\u00f3 t\u1ed1t \u0111\u1ec3 l\u00e0m dao kh\u00f4ng?<\/h3><p>C\u00f3, th\u00e9p c\u00f4ng c\u1ee5 A2 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c lo\u1ea1i dao hi\u1ec7u su\u1ea5t cao, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng lo\u1ea1i dao \u0111\u00f2i h\u1ecfi s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng gi\u1eef l\u01b0\u1ee1i. A2 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t, \u0111\u1ed9 c\u1ee9ng tuy\u1ec7t v\u1eddi (57-62 HRC) v\u00e0 gi\u1eef \u0111\u01b0\u1ee3c l\u01b0\u1ee1i dao ngay c\u1ea3 trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t.&nbsp;<\/p><p>T\u1ea1i SteelPRO Group, ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o r\u1eb1ng th\u00e9p A2 d\u00f9ng cho dao \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 c\u1ee9ng c\u1ee5 th\u1ec3, mang l\u1ea1i \u0111\u1ed9 b\u1ec1n m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 d\u1ebbo dai. Tuy nhi\u00ean, \u0111\u1ed9 c\u1ee9ng c\u1ee7a A2 th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi D2, v\u00ec v\u1eady m\u1eb7c d\u00f9 c\u00f3 hi\u1ec7u su\u1ea5t tuy\u1ec7t v\u1eddi trong c\u00e1c lo\u1ea1i dao c\u1ee9ng, hi\u1ec7u su\u1ea5t cao, nh\u01b0ng c\u00f3 th\u1ec3 kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t cho c\u00e1c lo\u1ea1i dao c\u1ea7n gi\u1eef c\u1ea1nh c\u1ef1c t\u1ed1t theo th\u1eddi gian.<\/p><h2 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa th\u00e9p c\u00f4ng c\u1ee5 A2 v\u00e0 th\u00e9p c\u00f4ng c\u1ee5 D2 l\u00e0 g\u00ec?<\/h2><p>A2 v\u00e0 D2 \u0111\u1ec1u l\u00e0 th\u00e9p c\u00f4ng c\u1ee5 hi\u1ec7u su\u1ea5t cao nh\u01b0ng kh\u00e1c nhau v\u1ec1 th\u00e0nh ph\u1ea7n v\u00e0 \u0111\u1eb7c t\u00ednh hi\u1ec7u su\u1ea5t:<\/p><ul class=\"wp-block-list\"><li>\u0110\u1ed9 c\u1ee9ng: T\u1ea1i SteelPRO Group, ch\u00fang t\u00f4i cung c\u1ea5p c\u1ea3 th\u00e9p D2 v\u00e0 A2, trong \u0111\u00f3 D2 th\u01b0\u1eddng c\u00f3 ph\u1ea1m vi \u0111\u1ed9 c\u1ee9ng cao h\u01a1n (58-64 HRC) so v\u1edbi A2 (57-62 HRC) v\u00e0 h\u1ed7 tr\u1ee3 kh\u00e1ch h\u00e0ng l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u t\u1ed1i \u01b0u d\u1ef1a tr\u00ean y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 c\u1ee9ng c\u1ee7a h\u1ecd.<\/li>\n\n<li>Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n: D2 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u01b0\u1ee3t tr\u1ed9i nh\u1edd h\u00e0m l\u01b0\u1ee3ng carbon v\u00e0 crom cao h\u01a1n, tuy nhi\u00ean A2 cung c\u1ea5p gi\u1ea3i ph\u00e1p c\u00e2n b\u1eb1ng ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng.<\/li>\n\n<li>Kh\u1ea3 n\u0103ng gia c\u00f4ng: A2 d\u1ec5 gia c\u00f4ng h\u01a1n so v\u1edbi D2.<\/li>\n\n<li>\u0110\u1ed9 b\u1ec1n: A2 c\u00f3 \u0111\u1ed9 b\u1ec1n t\u1ed1t h\u01a1n v\u00e0 \u00edt gi\u00f2n h\u01a1n D2.<\/li>\n\n<li>Trong khi D2 l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao th\u00ec A2 l\u1ea1i t\u1ed1t h\u01a1n cho c\u00e1c c\u00f4ng c\u1ee5 c\u1ea7n ch\u1ecbu \u0111\u01b0\u1ee3c c\u1ea3 va \u0111\u1eadp v\u00e0 m\u00e0i m\u00f2n, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9t v\u00e0 khu\u00f4n.<\/li><\/ul><h2 class=\"wp-block-heading\">Nh\u00e0 cung c\u1ea5p th\u00e9p c\u00f4ng c\u1ee5 A2: SteelPRO Group<\/h2><p>Th\u00e9p c\u00f4ng c\u1ee5 A2 c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t theo ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf v\u00e0 tr\u1ea3i qua qu\u00e1 tr\u00ecnh ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ea3n ph\u1ea9m ho\u1ea1t \u0111\u1ed9ng nh\u01b0 mong \u0111\u1ee3i trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t. Cho d\u00f9 b\u1ea1n y\u00eau c\u1ea7u k\u00edch th\u01b0\u1edbc c\u1ee5 th\u1ec3 hay ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd t\u00f9y ch\u1ec9nh, ch\u00fang t\u00f4i \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u ri\u00eang c\u1ee7a b\u1ea1n. \u0110\u1ed9i ng\u0169 t\u1ea1i SteelPRO Group lu\u00f4n s\u1eb5n s\u00e0ng h\u1ed7 tr\u1ee3 doanh nghi\u1ec7p c\u1ee7a b\u1ea1n, t\u1eeb vi\u1ec7c gi\u00fap b\u1ea1n l\u1ef1a ch\u1ecdn \u0111\u00fang lo\u1ea1i th\u00e9p c\u00f4ng c\u1ee5 cho \u0111\u1ebfn \u0111\u1ea3m b\u1ea3o giao h\u00e0ng \u0111\u00fang h\u1ea1n.<\/p><p><\/p>","protected":false},"excerpt":{"rendered":"<p>Th\u00e9p c\u00f4ng c\u1ee5 A2 l\u00e0 g\u00ec? Th\u00e9p c\u00f4ng c\u1ee5 A2 l\u00e0 th\u00e9p h\u1ee3p kim crom cacbon trung b\u00ecnh thu\u1ed9c nh\u00f3m [\u2026]<\/p>","protected":false},"author":12,"featured_media":19828,"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-19838","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\/19838","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=19838"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/19838\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/19828"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=19838"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=19838"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=19838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}