{"id":21784,"date":"2025-04-01T04:27:00","date_gmt":"2025-03-31T20:27:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=21784"},"modified":"2025-03-31T10:50:37","modified_gmt":"2025-03-31T02:50:37","slug":"300m-steel-guideline","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/alloy-steel\/300m-steel-guideline\/","title":{"rendered":"Thanh th\u00e9p h\u1ee3p kim 300M: AMS 6257, AMS 6417, AMS 6419"},"content":{"rendered":"

Khi nh\u1eefng th\u00e1ch th\u1ee9c v\u1ec1 k\u1ef9 thu\u1eadt \u0111\u00f2i h\u1ecfi v\u1eadt li\u1ec7u kh\u00f4ng b\u1ecb h\u1ecfng, 300M Alloy Steel s\u1ebd \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c nhu c\u1ea7u n\u00e0y. SteelPro Group chuy\u00ean cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p th\u00e9p 300M \u0111\u01b0\u1ee3c c\u00e1c k\u1ef9 s\u01b0 tr\u00ean to\u00e0n th\u1ebf gi\u1edbi tin d\u00f9ng. <\/span><\/p>

B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1ea3i th\u00edch khoa h\u1ecdc, \u1ee9ng d\u1ee5ng v\u00e0 s\u1ea3n ph\u1ea9m c\u1ee7a Th\u00e9p h\u1ee3p kim 300M. H\u00e3y c\u00f9ng kh\u00e1m ph\u00e1 \u0111i\u1ec1u g\u00ec khi\u1ebfn 300M tr\u1edf th\u00e0nh x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a k\u1ef9 thu\u1eadt c\u00f3 r\u1ee7i ro cao.<\/span><\/p>

Th\u00e9p 300M l\u00e0 g\u00ec?<\/span><\/h2>

Th\u00e9p 300M l\u00e0 h\u1ee3p kim b\u1ec1n \u0111\u01b0\u1ee3c l\u00e0m gi\u00e0u v\u1edbi silic, vanadi, cacbon v\u00e0 molypden. \u0110\u00e2y l\u00e0 phi\u00ean b\u1ea3n tinh ch\u1ebf c\u1ee7a AISI 4340. V\u1edbi \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 d\u1ebbo dai v\u00e0 \u0111\u1ed9 gi\u00e3n d\u00e0i t\u1ed1t, n\u00f3 v\u01b0\u1ee3t tr\u1ed9i h\u01a1n nhi\u1ec1u h\u1ee3p kim h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5. Kh\u1ea3 n\u0103ng l\u00e0m c\u1ee9ng xuy\u00ean su\u1ed1t c\u1ee7a n\u00f3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n \u0111\u1ed3ng \u0111\u1ec1u, ngay c\u1ea3 \u1edf c\u00e1c ph\u1ea7n d\u00e0y. Tuy nhi\u00ean, 300M nh\u1ea1y c\u1ea3m v\u1edbi s\u1ef1 gi\u00f2n do hydro v\u00e0 c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 nh\u01b0 oxy h\u00f3a ho\u1eb7c ph\u1ee7. Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a n\u00f3 b\u1ecb h\u1ea1n ch\u1ebf, khi\u1ebfn n\u00f3 kh\u00f4ng ph\u00f9 h\u1ee3p cho c\u00e1c m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng \u0111\u00f2i h\u1ecfi m\u1ee9c \u0111\u1ed9 b\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n cao.<\/span><\/p>

\u0110\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn theo ti\u00eau chu\u1ea9n AMS 6257, AMS 6419 v\u00e0 MIL-S-8844, SteelPro Group 300M \u0111\u01b0\u1ee3c tin c\u1eady trong c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 nh\u01b0 b\u00e1nh \u0111\u00e1p v\u00e0 c\u00e1nh qu\u1ea1t.<\/span><\/p>

Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt th\u00e9p 300M<\/span><\/h2>
  • AMS 6257<\/span><\/li>\n\n
  • AMS 6419<\/span><\/li>\n\n
  • AMS 6417<\/span><\/li>\n\n
  • MTL 1201<\/span><\/li>\n\n
  • MIL-S-8844<\/span><\/li>\n\n
  • M\u00e1y bay BMS 7-26 c\u1ee7a Boeing<\/span><\/li>\n\n
  • BS S155<\/span><\/li>\n\n
  • GJB 5063<\/span><\/li>\n\n
  • GB\/T 38809<\/span><\/li><\/ul>

    Nh\u1eefng ch\u1ee9ng nh\u1eadn n\u00e0y \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t 300M trong c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 qu\u1ed1c ph\u00f2ng.<\/span><\/p>

    Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p 300M<\/span><\/h2>
    Y\u1ebfu t\u1ed1<\/strong><\/td>N\u1ed9i dung<\/strong><\/td><\/tr>
    Cacbon (C)<\/td>0.4 – 0.45<\/td><\/tr>
    Silic (Si)<\/td>1.45 – 1.8<\/td><\/tr>
    Mangan (Mn)<\/td>0.6 – 0.9<\/td><\/tr>
    Ph\u1ed1t pho (P)<\/td>\u2264 0,01<\/td><\/tr>
    L\u01b0u hu\u1ef3nh (S)<\/td>\u2264 0,01<\/td><\/tr>
    Crom (Cr)<\/td>0.7 – 0.95<\/td><\/tr>
    Niken (Ni)<\/td>1.65 – 2<\/td><\/tr>
    \u0110\u1ed3ng (Cu)<\/td>\u2264 0,2<\/td><\/tr>
    Molip\u0111en (Mo)<\/td>0.3 – 0.5<\/td><\/tr>
    Vanadi (V)<\/td>0.05 – 0.1<\/td><\/tr><\/tbody><\/table><\/figure>

    300M T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p<\/span><\/h2>
    T\u00e0i s\u1ea3n<\/strong><\/td>Gi\u00e1 tr\u1ecb theo chi\u1ec1u d\u1ecdc<\/strong><\/td>Gi\u00e1 tr\u1ecb ngang<\/strong><\/td><\/tr>
    Gi\u1edbi h\u1ea1n ch\u1ea3y (\u0111\u1ed9 l\u1ec7ch 0,2%)<\/td>1550 MPa (225 ksi)<\/td>1550 MPa (225 ksi)<\/td><\/tr>
    \u0110\u1ed9 b\u1ec1n k\u00e9o<\/td>1900 \u2013 2100 MPa (275 \u2013 305 ksi)<\/td>1900 \u2013 2100 MPa (275 \u2013 305 ksi)<\/td><\/tr>
    \u0110\u1ed9 gi\u00e3n d\u00e0i (%)<\/td>8%<\/td>5%<\/td><\/tr>
    Gi\u1ea3m Di\u1ec7n T\u00edch (%)<\/td>30%<\/td>20%<\/td><\/tr><\/tbody><\/table><\/figure>

    Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt s\u1ea3n ph\u1ea9m th\u00e9p 300M<\/span><\/h2>

    Ch\u00fang t\u00f4i cung c\u1ea5p th\u00e9p 300M \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn \u1edf nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau v\u1edbi k\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh. Kho c\u1ee7a ch\u00fang t\u00f4i bao g\u1ed3m c\u00e1c thanh v\u00e0 tr\u00f2n \u1edf nhi\u1ec1u k\u00edch th\u01b0\u1edbc kh\u00e1c nhau, tu\u00e2n th\u1ee7 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a AMS, MIL v\u00e0 to\u00e0n c\u1ea7u. \u0110\u1ed1i v\u1edbi c\u00e1c k\u00edch th\u01b0\u1edbc chuy\u00ean bi\u1ec7t ho\u1eb7c y\u00eau c\u1ea7u d\u1ef1 \u00e1n \u0111\u1ed9c \u0111\u00e1o, ch\u00fang t\u00f4i cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p.<\/span><\/p>

    M\u1eabu s\u1ea3n ph\u1ea9m<\/strong><\/td>Ph\u1ea1m vi k\u00edch th\u01b0\u1edbc (H\u1ec7 m\u00e9t)<\/strong><\/td>Ph\u1ea1m vi k\u00edch th\u01b0\u1edbc (Anh)<\/strong><\/td>Ti\u00eau chu\u1ea9n<\/strong><\/td>T\u00f9y ch\u1ecdn ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t<\/strong><\/td><\/tr>
    Thanh<\/td>\u0110\u01b0\u1eddng k\u00ednh: 6\u2013305 mm<\/td>\u0110\u01b0\u1eddng k\u00ednh: 0,25\u201312 in<\/td>AMS 6257, AMS 6417, AMS 6419<\/td>K\u00e9o ngu\u1ed9i, M\u00e0i, C\u00e1n n\u00f3ng<\/td><\/tr>
    V\u00f2ng tr\u00f2n<\/td>\u0110\u01b0\u1eddng k\u00ednh: 10\u2013150 mm<\/td>\u0110\u01b0\u1eddng k\u00ednh: 0,4\u20136 in<\/td>AMS 6257, AMS 6419<\/td>Ti\u1ec7n ch\u00ednh x\u00e1c, \u0111\u00e1nh b\u00f3ng<\/td><\/tr>
    K\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh<\/td>Chi\u1ec1u d\u00e0i: 3\u201312 m<\/td>Chi\u1ec1u d\u00e0i: 10\u201340 ft<\/td>MIL-S-8844, BMS 7-26<\/td>C\u00f3 s\u1eb5n d\u1ecbch v\u1ee5 gia c\u00f4ng t\u00f9y ch\u1ec9nh<\/td><\/tr><\/tbody><\/table><\/figure>

    \u1ee8ng d\u1ee5ng th\u00e9p 300M<\/span><\/h2>

    Th\u00e9p h\u1ee3p kim 300M v\u01b0\u1ee3t tr\u1ed9i trong m\u00f4i tr\u01b0\u1eddng ch\u1ecbu \u1ee9ng su\u1ea5t cao \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ecfi v\u00e0 \u0111\u1ed9 tin c\u1eady:<\/span><\/p>

    • H\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5<\/span>: B\u1ed9 ph\u1eadn h\u1ea1 c\u00e1nh, b\u00e1nh l\u00e1i, bu l\u00f4ng c\u01b0\u1eddng \u0111\u1ed9 cao.<\/span><\/li>\n\n
    • Ph\u00f2ng th\u1ee7<\/span>: C\u00e1c b\u1ed9 ph\u1eadn xe b\u1ecdc th\u00e9p, h\u1ec7 th\u1ed1ng v\u0169 kh\u00ed.<\/span><\/li>\n\n
    • V\u1eadn t\u1ea3i<\/span>: Tr\u1ee5c truy\u1ec1n \u0111\u1ed9ng, b\u1ed9 t\u0103ng \u00e1p, linh ki\u1ec7n \u0111\u1ed9ng c\u01a1 EV.<\/span><\/li>\n\n
    • N\u0103ng l\u01b0\u1ee3ng<\/span>: Van d\u1ea7u\/kh\u00ed, tr\u1ee5c tua bin.<\/span><\/li>\n\n
    • C\u00f4ng nghi\u1ec7p<\/span>: B\u00e1nh r\u0103ng m\u00e1y m\u00f3c h\u1ea1ng n\u1eb7ng, d\u1ee5ng c\u1ee5 ch\u1ecbu \u00e1p su\u1ea5t cao.<\/li><\/ul>

      T\u1ed5ng quan v\u1ec1 t\u00ednh ch\u1ea5t c\u1ee7a th\u00e9p h\u1ee3p kim 300M<\/span><\/h2>
      • Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ecfi v\u01b0\u1ee3t tr\u1ed9i<\/span><\/li><\/ul>

        C\u1ee7a n\u00f3 c\u1ea5u tr\u00fac vi m\u00f4 c\u1ef1c s\u1ea1ch, \u0111\u01b0\u1ee3c tinh ch\u1ebf th\u00f4ng qua qu\u00e1 tr\u00ecnh n\u1ea5u ch\u1ea3y l\u1ea1i b\u1eb1ng h\u1ed3 quang ch\u00e2n kh\u00f4ng.<\/span><\/p>

        • \u0110\u1ed9 c\u1ee9ng \u0111\u1ed3ng \u0111\u1ec1u<\/span><\/li><\/ul>

          300M duy tr\u00ec \u0111\u1ed9 c\u1ee9ng \u0111\u1ed3ng \u0111\u1ec1u tr\u00ean kh\u1eafp c\u00e1c ph\u1ea7n d\u00e0y, lo\u1ea1i b\u1ecf c\u00e1c \u0111i\u1ec3m y\u1ebfu \u1edf c\u00e1c th\u00e0nh ph\u1ea7n quan tr\u1ecdng.<\/span><\/p>

          • \u0110\u1ed9 b\u1ec1n c\u00e2n b\u1eb1ng<\/span><\/li><\/ul>

            N\u00f3 v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 d\u1ebbo \u1edf m\u1ee9c c\u01b0\u1eddng \u0111\u1ed9 cao, ng\u0103n ng\u1eeba g\u00e3y x\u01b0\u01a1ng do va ch\u1ea1m \u0111\u1ed9t ng\u1ed9t ho\u1eb7c qu\u00e1 t\u1ea3i.<\/span><\/p>

            • \u0110\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t<\/span><\/li><\/ul>

              Th\u00e0nh ph\u1ea7n gi\u00e0u silicon cho ph\u00e9p nhi\u1ec7t \u0111\u1ed9 t\u00f4i luy\u1ec7n cao h\u01a1n, gi\u1ea3m \u0111\u1ed9 gi\u00f2n trong khi v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng.<\/span><\/p>

              • \u0110\u1ed9 tin c\u1eady c\u1ea5p \u0111\u1ed9 h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5<\/span><\/li><\/ul>

                300M \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n nghi\u00eam ng\u1eb7t c\u1ee7a ng\u00e0nh v\u1ec1 \u0111\u1ed9 tinh khi\u1ebft v\u00e0 kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t trong c\u00e1c h\u1ec7 th\u1ed1ng quan tr\u1ecdng \u0111\u1ed1i v\u1edbi chuy\u1ebfn bay.<\/span><\/p>

                Th\u00e9p 300M so v\u1edbi Th\u00e9p 4340<\/span><\/h2>

                Th\u00e9p 300M l\u00e0 h\u1ee3p kim c\u00f3 \u0111\u1ed9 b\u1ec1n cao d\u00f9ng trong h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, trong khi th\u00e9p 4340 l\u00e0 h\u1ee3p kim \u0111a n\u0103ng, c\u00f3 \u0111\u1ed9 b\u1ec1n trung b\u00ecnh. 300M c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ecfi t\u1ed1t h\u01a1n.<\/span><\/p>

                • Th\u00e0nh ph\u1ea7n<\/span><\/li><\/ul>

                  300M l\u00e0 phi\u00ean b\u1ea3n n\u00e2ng c\u1ea5p c\u1ee7a 4340, k\u1ebft h\u1ee3p th\u00eam silicon, vanadi, t\u0103ng l\u01b0\u1ee3ng carbon v\u00e0 molypden. S\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p n\u1ea5u ch\u1ea3y h\u1ed3 quang ch\u00e2n kh\u00f4ng (VAR), \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tinh khi\u1ebft cao h\u01a1n.<\/span><\/p>

                  • Hi\u1ec7u su\u1ea5t<\/span><\/li><\/ul>

                    300M c\u1ee9ng h\u01a1n, b\u1ec1n h\u01a1n khi ch\u1ecbu l\u1ef1c v\u00e0 \u00edt c\u00f3 kh\u1ea3 n\u0103ng b\u1ecb g\u00e3y gi\u00f2n khi ch\u1ecbu \u00e1p l\u1ef1c. 4340 tuy b\u1ec1n nh\u01b0ng kh\u00f4ng th\u1ec3 s\u00e1nh \u0111\u01b0\u1ee3c v\u1edbi \u0111\u1ed9 b\u1ec1n c\u1ee7a 300M trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t.<\/span><\/p>

                    • \u1ee8ng d\u1ee5ng<\/span><\/li><\/ul>

                      300M \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c th\u00e0nh ph\u1ea7n h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 nh\u01b0 b\u00e1nh \u0111\u00e1p. 4340 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c b\u1ed9 ph\u1eadn \u00f4 t\u00f4 v\u00e0 c\u00f4ng nghi\u1ec7p.<\/span><\/p>

                      • Tr\u1ecb gi\u00e1<\/span><\/li><\/ul>

                        300M \u0111\u1eaft h\u01a1n do quy tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 c\u00e1c t\u00ednh ch\u1ea5t \u0111\u01b0\u1ee3c c\u1ea3i ti\u1ebfn, trong khi 4340 c\u00f3 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng h\u01a1n cho m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng chung.<\/span><\/p>

                        Th\u00e9p 300M c\u1ea5p h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 t\u1eeb SteelPro Group<\/span><\/h2>

                        T\u1ea1i SteelPro Group, ch\u00fang t\u00f4i cung c\u1ea5p th\u00e9p 300M \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n AMS 6257, MIL-S-8844 v\u00e0 Boeing BMS 7-26. M\u1ed7i s\u1ea3n ph\u1ea9m, d\u00f9 l\u00e0 thanh, tr\u00f2n hay c\u1eaft theo y\u00eau c\u1ea7u, \u0111\u1ec1u tr\u1ea3i qua qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m nghi\u00eam ng\u1eb7t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c nhu c\u1ea7u c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, qu\u1ed1c ph\u00f2ng v\u00e0 c\u00f4ng nghi\u1ec7p ch\u1ecbu \u1ee9ng su\u1ea5t cao.<\/span><\/p>

                        B\u1ea1n c\u1ea7n m\u1ed9t gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p? <\/span><\/p>

                        Ch\u00fang t\u00f4i cung c\u1ea5p v\u1eadt li\u1ec7u c\u00f3 k\u00edch th\u01b0\u1edbc ch\u00ednh x\u00e1c, b\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n v\u00e0 c\u00e1c giao th\u1ee9c x\u1eed l\u00fd nhi\u1ec7t, t\u1ea5t c\u1ea3 \u0111\u1ec1u \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n. V\u1edbi d\u1ecbch v\u1ee5 h\u1eadu c\u1ea7n to\u00e0n c\u1ea7u v\u00e0 ch\u1ee9ng nh\u1eadn c\u00f3 th\u1ec3 truy xu\u1ea5t, ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o giao h\u00e0ng nhanh ch\u00f3ng, \u0111\u00e1ng tin c\u1eady m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 ch\u1eadm tr\u1ec5 ho\u1eb7c kh\u00f4ng ch\u1eafc ch\u1eafn.<\/span><\/p>

                         <\/p>

                         <\/p>","protected":false},"excerpt":{"rendered":"

                        Th\u00e9p h\u1ee3p kim 300M: \u0110\u1ea1t ch\u1ee9ng nh\u1eadn AMS 6257, \u0111\u1ed9 b\u1ec1n c\u1ef1c cao d\u00e0nh cho h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 qu\u1ed1c ph\u00f2ng. SteelPro Group cung c\u1ea5p v\u1eadt li\u1ec7u \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra ch\u00ednh x\u00e1c.<\/p>","protected":false},"author":1,"featured_media":21785,"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":[4308],"tags":[],"class_list":["post-21784","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-alloy-steel"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/21784","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/comments?post=21784"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/21784\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/21785"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=21784"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=21784"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=21784"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}