{"id":5697,"date":"2025-12-24T01:03:32","date_gmt":"2025-12-24T01:03:32","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5697"},"modified":"2025-12-24T01:03:32","modified_gmt":"2025-12-24T01:03:32","slug":"gb-t-3098-16-stainless-steel-set-screws-properties","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/vi\/blog\/gb-t-3098-16-stainless-steel-set-screws-properties\/","title":{"rendered":"GB\/T 3098.16: \u0110\u1eb7c t\u00ednh c\u1ee7a v\u00edt \u0111\u1ecbnh v\u1ecb b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9"},"content":{"rendered":"

Gi\u1edbi thi\u1ec7u v\u1ec1 Ti\u00eau chu\u1ea9n GB\/T 3098.16<\/h2>\n
\n

Ti\u00eau chu\u1ea9n n\u00e0y quy \u0111\u1ecbnh c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc c\u1ee7a v\u00edt \u0111\u1ecbnh v\u1ecb b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 c\u00e1c lo\u1ea1i \u1ed1c v\u00edt kh\u00f4ng ch\u1ecbu k\u00e9o t\u01b0\u01a1ng t\u1ef1, t\u1eadp trung v\u00e0o c\u00e1c lo\u1ea1i th\u00e9p Austenit. Ti\u00eau chu\u1ea9n n\u00e0y \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady trong m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n, ch\u1eb3ng h\u1ea1n nh\u01b0 \u1ee9ng d\u1ee5ng h\u00e0ng h\u1ea3i ho\u1eb7c h\u00f3a ch\u1ea5t, b\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc v\u00e0 c\u00e1c ti\u00eau ch\u00ed hi\u1ec7u su\u1ea5t. Vi\u1ec7c tu\u00e2n th\u1ee7 GB\/T 3098.16-2014 \u0111\u1ea3m b\u1ea3o c\u00e1c lo\u1ea1i \u1ed1c v\u00edt ch\u1ecbu \u0111\u01b0\u1ee3c \u1ee9ng su\u1ea5t v\u1eadn h\u00e0nh m\u00e0 kh\u00f4ng b\u1ecb h\u1ecfng.<\/p>\n

C\u00e1c k\u1ef9 s\u01b0 n\u00ean tham kh\u1ea3o \u0111i\u1ec1u n\u00e0y \u0111\u1ec3 l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u c\u00e2n b\u1eb1ng gi\u1eefa kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc, ng\u0103n ng\u1eeba c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 \u0103n m\u00f2n gi\u1eefa c\u00e1c h\u1ea1t th\u00f4ng qua vi\u1ec7c l\u1ef1a ch\u1ecdn h\u1ee3p kim ph\u00f9 h\u1ee3p.<\/p>\n<\/div>\n

Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc<\/h2>\n
\n

Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a c\u00e1c nh\u00f3m th\u00e9p kh\u00f4ng g\u1ec9 austenit \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong v\u00edt \u0111\u1ecbnh v\u1ecb \u0111\u01b0\u1ee3c n\u00eau trong B\u1ea3ng 2, ph\u00f9 h\u1ee3p v\u1edbi ti\u00eau chu\u1ea9n GB\/T 3098.6-2014. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t l\u1ef1a ch\u1ecdn trong ph\u1ea1m vi quy \u0111\u1ecbnh tr\u1eeb khi c\u00f3 th\u1ecfa thu\u1eadn kh\u00e1c. \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng d\u1ec5 b\u1ecb \u0103n m\u00f2n gi\u1eefa c\u00e1c h\u1ea1t, c\u1ea7n ki\u1ec3m tra theo ti\u00eau chu\u1ea9n GB\/T 4334 v\u00e0 \u01b0u ti\u00ean c\u00e1c nh\u00f3m A3\/A5 \u1ed5n \u0111\u1ecbnh ho\u1eb7c nh\u00f3m A2\/A4 c\u00f3 h\u00e0m l\u01b0\u1ee3ng cacbon th\u1ea5p (\u22640,03%).<\/p>\n

    \n
  • C\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y t\u1ed1i \u01b0u h\u00f3a kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u0111\u1ed3ng th\u1eddi v\u1eabn duy tr\u00ec \u0111\u01b0\u1ee3c t\u00ednh d\u1ec5 t\u1ea1o h\u00ecnh.<\/li>\n
  • C\u00e1c \u0111i\u1ec1u ch\u1ec9nh nh\u01b0 thay th\u1ebf l\u01b0u hu\u1ef3nh b\u1eb1ng selen gi\u00fap c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng gia c\u00f4ng trong nh\u00f3m A1.<\/li>\n
  • Vi\u1ec7c \u1ed5n \u0111\u1ecbnh b\u1eb1ng titan ho\u1eb7c niobi gi\u00fap ng\u0103n ng\u1eeba s\u1ef1 k\u1ebft t\u1ee7a cacbua.<\/li>\n<\/ul>\n
    \n\n\n\n\n\n\n\n\n\n\n
    Ki\u1ec3u<\/th>\nNh\u00f3m<\/th>\nTh\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc (ph\u1ea7n tr\u0103m kh\u1ed1i l\u01b0\u1ee3ng) \/ %M\u1ed9t<\/sup><\/th>\nGhi ch\u00fa<\/th>\n<\/tr>\n
    C<\/th>\nSi<\/th>\nMn<\/th>\nP<\/th>\nS<\/th>\nCr<\/th>\nMo<\/th>\nNi<\/th>\n\u0110\u1ed3ng<\/th>\n<\/tr>\n<\/thead>\n
    Austenit<\/td>\nA1<\/td>\n0.12<\/td>\n1<\/td>\n6.5<\/td>\n0.2<\/td>\n0,15\uff5e0,35<\/td>\n16\uff5e19<\/td>\n0.7<\/td>\n5\uff5e10<\/td>\n1,75\uff5e2,25<\/td>\nb, c, d<\/td>\n<\/tr>\n
    A2<\/td>\n0.1<\/td>\n1<\/td>\n2<\/td>\n0.05<\/td>\n0.03<\/td>\n15\uff5e20<\/td>\n\u2014e<\/sup><\/td>\n8\uff5e19<\/td>\n4<\/td>\nf, g<\/td>\n<\/tr>\n
    A3<\/td>\n0.08<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.03<\/td>\n17\uff5e19<\/td>\n\u2014e<\/sup><\/td>\n9\uff5e12<\/td>\n1<\/td>\nh<\/td>\n<\/tr>\n
    A4<\/td>\n0.08<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.03<\/td>\n16\uff5e18,5<\/td>\n2\uff5e3<\/td>\n10\uff5e15<\/td>\n4<\/td>\ng, i<\/td>\n<\/tr>\n
    A5<\/td>\n0.08<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.03<\/td>\n16\uff5e18,5<\/td>\n2\uff5e3<\/td>\n10,5\uff5e14<\/td>\n1<\/td>\nCH\u00c0O<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    M\u1ed9t<\/sup> C\u00e1c gi\u00e1 tr\u1ecb t\u1ed1i \u0111a tr\u1eeb khi c\u00f3 quy \u0111\u1ecbnh kh\u00e1c.<\/p>\n

    b<\/sup> L\u01b0u hu\u1ef3nh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thay th\u1ebf b\u1eb1ng selen.<\/p>\n

    c<\/sup> N\u1ebfu h\u00e0m l\u01b0\u1ee3ng niken d\u01b0\u1edbi 8%, th\u00ec h\u00e0m l\u01b0\u1ee3ng mangan t\u1ed1i thi\u1ec3u ph\u1ea3i l\u00e0 5%.<\/p>\n

    d<\/sup> N\u1ebfu h\u00e0m l\u01b0\u1ee3ng niken v\u01b0\u1ee3t qu\u00e1 8%, th\u00ec kh\u00f4ng c\u00f3 quy \u0111\u1ecbnh n\u00e0o v\u1ec1 h\u00e0m l\u01b0\u1ee3ng \u0111\u1ed3ng t\u1ed1i thi\u1ec3u.<\/p>\n

    e<\/sup> Nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 b\u1ed5 sung th\u00eam molypden theo quy\u1ebft \u0111\u1ecbnh c\u1ee7a m\u00ecnh; c\u1ea7n n\u00eau r\u00f5 gi\u1edbi h\u1ea1n n\u1ebfu c\u1ea7n.<\/p>\n

    f<\/sup> N\u1ebfu h\u00e0m l\u01b0\u1ee3ng crom d\u01b0\u1edbi 17%, th\u00ec h\u00e0m l\u01b0\u1ee3ng niken t\u1ed1i thi\u1ec3u ph\u1ea3i l\u00e0 12%.<\/p>\n

    g<\/sup> \u0110\u1ed1i v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 h\u00e0m l\u01b0\u1ee3ng cacbon t\u1ed1i \u0111a 0,03%, h\u00e0m l\u01b0\u1ee3ng nit\u01a1 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u1ebfn 0,22%.<\/p>\n

    h<\/sup> \u0110\u1ec3 \u1ed5n \u0111\u1ecbnh, c\u1ea7n titan \u2265 (5\u00d7C%) \u0111\u1ebfn 0,8%, ho\u1eb7c niobi\/tantalum \u2265 (10\u00d7C%) \u0111\u1ebfn 1,0%.<\/p>\n

    T\u00f4i<\/sup> \u0110\u1ed1i v\u1edbi \u0111\u01b0\u1eddng k\u00ednh l\u1edbn h\u01a1n, h\u00e0m l\u01b0\u1ee3ng carbon c\u00f3 th\u1ec3 t\u0103ng l\u00ean 0,12% \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c \u0111\u1eb7c t\u00ednh mong mu\u1ed1n.<\/p>\n<\/div>\n

    T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc<\/h2>\n
    \n

    Y\u00eau c\u1ea7u chung<\/h3>\n

    \u1ed0c v\u00edt \u0111\u1ecbnh v\u1ecb ph\u1ea3i \u0111\u00e1p \u1ee9ng c\u00e1c gi\u00e1 tr\u1ecb trong B\u1ea3ng 3 v\u00e0 4 \u0111\u1ec3 \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn. C\u00e1c \u0111\u1eb7c t\u00ednh n\u00e0y \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n d\u01b0\u1edbi c\u00e1c y\u00eau c\u1ea7u v\u1ec1 m\u00f4-men xo\u1eafn v\u00e0 \u0111\u1ed9 c\u1ee9ng trong c\u00e1c \u1ee9ng d\u1ee5ng l\u1eafp r\u00e1p.<\/p>\n

      \n
    1. X\u00e1c minh th\u00f4ng qua c\u00e1c b\u00e0i ki\u1ec3m tra c\u1ee5 th\u1ec3 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh.<\/li>\n
    2. Th\u00edch h\u1ee3p cho c\u00e1c lo\u1ea1i g\u1ed7 c\u00f3 \u0111\u1ed9 c\u1ee9ng 12H v\u00e0 21H.<\/li>\n<\/ol>\n<\/div>\n
      \n

      \u0110\u1ea3m b\u1ea3o m\u00f4-men xo\u1eafn cho \u1ed1c v\u00edt l\u1ee5c gi\u00e1c<\/h3>\n

      \u1ed0c v\u00edt l\u1ee5c gi\u00e1c tu\u00e2n th\u1ee7 m\u00f4-men xo\u1eafn t\u1ed1i thi\u1ec3u trong B\u1ea3ng 3, \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m \u1edf c\u00e1c chi\u1ec1u d\u00e0i x\u00e1c \u0111\u1ecbnh \u0111\u1ec3 m\u00f4 ph\u1ecfng vi\u1ec7c s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf.<\/p>\n

      \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      \u0110\u01b0\u1eddng k\u00ednh ren danh ngh\u0129a d<\/th>\n\u0110\u1ed9 d\u00e0i b\u00e0i ki\u1ec3m tra t\u1ed1i thi\u1ec3uM\u1ed9t<\/sup> \/ mm<\/th>\nL\u1edbp \u0111\u1ed9 c\u1ee9ng<\/th>\n<\/tr>\n
      <\/th>\n\u0110i\u1ec3m b\u1eb1ng ph\u1eb3ng<\/th>\n\u0110i\u1ec3m h\u00ecnh n\u00f3n<\/th>\n\u0110i\u1ec3m Ch\u00f3<\/th>\n\u0110i\u1ec3m Cup<\/th>\n12 gi\u1edd<\/th>\n21 gi\u1edd<\/th>\n<\/tr>\n<\/thead>\n
      1.6<\/td>\n2.5<\/td>\n3<\/td>\n3<\/td>\n2.5<\/td>\n0.03<\/td>\n0.05<\/td>\n<\/tr>\n
      2<\/td>\n4<\/td>\n4<\/td>\n4<\/td>\n3<\/td>\n0.06<\/td>\n0.1<\/td>\n<\/tr>\n
      2.5<\/td>\n4<\/td>\n4<\/td>\n5<\/td>\n4<\/td>\n0.18<\/td>\n0.3<\/td>\n<\/tr>\n
      3<\/td>\n4<\/td>\n5<\/td>\n6<\/td>\n5<\/td>\n0.25<\/td>\n0.42<\/td>\n<\/tr>\n
      4<\/td>\n5<\/td>\n6<\/td>\n8<\/td>\n6<\/td>\n0.8<\/td>\n1.4<\/td>\n<\/tr>\n
      5<\/td>\n6<\/td>\n8<\/td>\n8<\/td>\n6<\/td>\n1.7<\/td>\n2.8<\/td>\n<\/tr>\n
      6<\/td>\n8<\/td>\n8<\/td>\n10<\/td>\n8<\/td>\n3<\/td>\n5<\/td>\n<\/tr>\n
      8<\/td>\n10<\/td>\n10<\/td>\n12<\/td>\n10<\/td>\n7<\/td>\n12<\/td>\n<\/tr>\n
      10<\/td>\n12<\/td>\n12<\/td>\n16<\/td>\n12<\/td>\n14<\/td>\n24<\/td>\n<\/tr>\n
      12<\/td>\n16<\/td>\n16<\/td>\n20<\/td>\n16<\/td>\n25<\/td>\n42<\/td>\n<\/tr>\n
      16<\/td>\n20<\/td>\n20<\/td>\n25<\/td>\n20<\/td>\n63<\/td>\n105<\/td>\n<\/tr>\n
      20<\/td>\n25<\/td>\n25<\/td>\n30<\/td>\n25<\/td>\n126<\/td>\n210<\/td>\n<\/tr>\n
      24<\/td>\n30<\/td>\n30<\/td>\n35<\/td>\n30<\/td>\n200<\/td>\n332<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

      M\u1ed9t<\/sup> Chi\u1ec1u d\u00e0i t\u1ed1i thi\u1ec3u t\u01b0\u01a1ng \u1ee9ng v\u1edbi \u00edt nh\u1ea5t m\u1ed9t \u0111\u1ed9 s\u00e2u \u1ed5 c\u1eafm ho\u00e0n ch\u1ec9nh theo ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m.<\/p>\n<\/div>\n

      \n

      Y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 c\u1ee9ng<\/h3>\n

      \u1ed0c v\u00edt \u0111\u1ecbnh v\u1ecb ph\u1ea3i \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng theo B\u1ea3ng 4, m\u1ee9c \u0111\u1ed9 n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 ch\u1ecbu t\u1ea3i.<\/p>\n

      \n\n\n\n\n\n\n\n\n
      \u0110\u1ed9 c\u1ee9ng<\/th>\nL\u1edbp \u0111\u1ed9 c\u1ee9ng<\/th>\n<\/tr>\n
      12 gi\u1edd<\/th>\n21 gi\u1edd<\/th>\n<\/tr>\n<\/thead>\n
      \u0110\u1ed9 c\u1ee9ng Vickers HV<\/td>\n125\uff5e209<\/td>\n\u2265210<\/td>\n<\/tr>\n
      \u0110\u1ed9 c\u1ee9ng Brinell HB<\/td>\n123\uff5e213<\/td>\n\u2265214<\/td>\n<\/tr>\n
      \u0110\u1ed9 c\u1ee9ng Rockwell HRB<\/td>\n70\uff5e95<\/td>\n\u226596<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
      \n

      Ki\u1ec3m tra \u0111\u1ed9 c\u1ee9ng<\/h3>\n

      Ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m theo ti\u00eau chu\u1ea9n GB\/T 231.1 (HB), GB\/T 230.1 (HRB) ho\u1eb7c GB\/T 4340.1 (HV). Trong tr\u01b0\u1eddng h\u1ee3p tranh ch\u1ea5p, s\u1eed d\u1ee5ng thang \u0111o Vickers l\u00e0m c\u01a1 s\u1edf. Tu\u00e2n th\u1ee7 c\u00e1c quy tr\u00ecnh t\u1eeb ti\u00eau chu\u1ea9n GB\/T 3098.3 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c.<\/p>\n

        \n
      • \u0110\u1ea3m b\u1ea3o vi\u1ec7c chu\u1ea9n b\u1ecb b\u1ec1 m\u1eb7t kh\u00f4ng l\u00e0m thay \u0111\u1ed5i k\u1ebft qu\u1ea3.<\/li>\n
      • Ki\u1ec3m tra nhi\u1ec1u \u0111i\u1ec3m kh\u00e1c nhau \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh \u0111\u1ed3ng nh\u1ea5t trong c\u00e1c l\u00f4 s\u1ea3n xu\u1ea5t.<\/li>\n<\/ul>\n<\/div>\n

        Ph\u1ee5 l\u1ee5c<\/h2>\n
        \n

        Ph\u1ee5 l\u1ee5c B: Th\u00e0nh ph\u1ea7n th\u00e9p kh\u00f4ng g\u1ec9 Austenit (theo ti\u00eau chu\u1ea9n ISO 683-13:1986)<\/h3>\n

        Ph\u1ee5 l\u1ee5c b\u1ed5 sung n\u00e0y cung c\u1ea5p th\u00e0nh ph\u1ea7n chi ti\u1ebft c\u1ee7a th\u00e9p austenit, h\u1ed7 tr\u1ee3 vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u cho c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u1ee5 th\u1ec3.<\/p>\n

        \n\n\n\n\n\n\n\n
        Th\u00e9pM\u1ed9t<\/sup><\/th>\nTh\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdcb<\/sup> (ph\u1ea7n tr\u0103m kh\u1ed1i l\u01b0\u1ee3ng) \/ %<\/th>\nCh\u1ec9 \u0111\u1ecbnh nh\u00f3md<\/sup><\/th>\n<\/tr>\n
        C<\/th>\nSi t\u1ed1i \u0111a<\/th>\nMn t\u1ed1i \u0111a<\/th>\nP t\u1ed1i \u0111a<\/th>\nS<\/th>\nN<\/th>\nCr<\/th>\nMo<\/th>\nNb<\/th>\nNic<\/sup><\/th>\nSe min<\/th>\nTi<\/th>\n\u0110\u1ed3ng<\/th>\n<\/tr>\n<\/thead>\n
        10<\/td>\nT\u1ed1i \u0111a 0,030<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\nT\u1ed1i \u0111a 0,030<\/td>\n\u2014<\/td>\n17.0\uff5e19.0<\/td>\n\u2014<\/td>\n\u2014<\/td>\n9.0\uff5e12.0<\/td>\n\u2014<\/td>\n\u2014<\/td>\n\u2014<\/td>\nA2e<\/sup><\/td>\n<\/tr>\n

        <\/p>\n

        19aN<\/td>\nT\u1ed1i \u0111a 0,030<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\nT\u1ed1i \u0111a 0,030<\/td>\n0,12\uff5e0,22<\/td>\n16,5\uff5e18,5<\/td>\n2,5\uff5e3,0<\/td>\n\u2014<\/td>\n11,5\uff5e14,5<\/td>\n\u2014<\/td>\n\u2014<\/td>\n\u2014<\/td>\nA4e<\/sup><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

        Ghi ch\u00fa t\u1eeb ph\u1ee5 l\u1ee5c: S\u1ed1 hi\u1ec7u lo\u1ea1i ch\u1ec9 mang t\u00ednh t\u1ea1m th\u1eddi; kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ed5 sung c\u00e1c th\u00e0nh ph\u1ea7n kh\u00f4ng \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea n\u1ebfu ch\u01b0a c\u00f3 s\u1ef1 \u0111\u1ed3ng \u00fd; tr\u00e1nh l\u00e0m \u00f4 nhi\u1ec5m ph\u1ebf li\u1ec7u.<\/p>\n<\/div>\n

        \n

        Ph\u1ee5 l\u1ee5c C: Th\u00e9p kh\u00f4ng g\u1ec9 Austenit d\u00f9ng cho qu\u00e1 tr\u00ecnh d\u1eadp ngu\u1ed9i v\u00e0 \u00e9p \u0111\u00f9n (t\u1eeb ISO 4954:1993)<\/h3>\n

        Ph\u1ee5 l\u1ee5c n\u00e0y li\u1ec7t k\u00ea c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho c\u00e1c quy tr\u00ecnh t\u1ea1o h\u00ecnh ngu\u1ed9i, \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng gia c\u00f4ng m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u1ec1n.<\/p>\n

        \n\n\n\n\n\n\n\n
        K\u00fd hi\u1ec7u lo\u1ea1i th\u00e9pM\u1ed9t<\/sup><\/th>\nTh\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdcb<\/sup> (ph\u1ea7n tr\u0103m kh\u1ed1i l\u01b0\u1ee3ng) \/ %<\/th>\nCh\u1ec9 \u0111\u1ecbnh nh\u00f3mc<\/sup><\/th>\n<\/tr>\n
        KH\u00d4NG.<\/th>\nT\u00ean<\/th>\nISO 4954:1979<\/th>\nC<\/th>\nSi t\u1ed1i \u0111a<\/th>\nMn t\u1ed1i \u0111a<\/th>\nP t\u1ed1i \u0111a<\/th>\nS t\u1ed1i \u0111a<\/th>\nCr<\/th>\nMo<\/th>\nNi<\/th>\nNg\u01b0\u1eddi kh\u00e1c<\/th>\n<\/th>\n<\/tr>\n<\/thead>\n
        78<\/td>\nX 2 CrNi 18 10 E<\/td>\nD20<\/td>\n\u22640,030<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.03<\/td>\n17.0\uff5e19.0<\/td>\n\u2014<\/td>\n9.0\uff5e12.0<\/td>\n\u2014<\/td>\nA2d<\/sup><\/td>\n<\/tr>\n

        <\/p>\n

        88<\/td>\nX 3 CrNiCu 18 9 3 E<\/td>\nD32<\/td>\n\u22640,04<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.03<\/td>\n17.0\uff5e19.0<\/td>\n\u2014<\/td>\n8,5\uff5e10,5<\/td>\nCu: 3,00\uff5e4,00<\/td>\nA2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

        Ghi ch\u00fa: C\u00e1c k\u00fd hi\u1ec7u bao g\u1ed3m s\u1ed1 th\u1ee9 t\u1ef1 v\u00e0 t\u00ean ISO; kh\u00f4ng th\u00eam c\u00e1c nguy\u00ean t\u1ed1 kh\u00f4ng \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea; ng\u0103n ng\u1eeba \u00f4 nhi\u1ec5m \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c \u0111\u1eb7c t\u00ednh t\u1ed1i \u01b0u.<\/p>\n<\/div>\n

        \n

        Ph\u1ee5 l\u1ee5c E: \u0110\u1ed9 th\u1ea9m t\u1eeb t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 Austenit<\/h3>\n

        \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng nh\u1ea1y c\u1ea3m v\u1edbi t\u1eeb t\u00ednh, h\u00e3y tham kh\u1ea3o \u00fd ki\u1ebfn \u200b\u200bc\u1ee7a c\u00e1c nh\u00e0 luy\u1ec7n kim. Th\u00e9p Austenit kh\u00f4ng c\u00f3 t\u1eeb t\u00ednh \u1edf tr\u1ea1ng th\u00e1i \u1ee7 dung d\u1ecbch nh\u01b0ng c\u00f3 th\u1ec3 tr\u1edf n\u00ean c\u00f3 t\u1eeb t\u00ednh sau khi gia c\u00f4ng ngu\u1ed9i. \u0110\u1ed9 th\u1ea9m th\u1ea5u t\u01b0\u01a1ng \u0111\u1ed1i \u03bcr<\/sub> \u0110o \u0111\u1ed9 t\u1eeb h\u00f3a; gi\u00e1 tr\u1ecb g\u1ea7n 1 cho th\u1ea5y \u0111\u1ed9 th\u1ea9m th\u1ea5u th\u1ea5p.<\/p>\n

          \n
        • V\u00ed d\u1ee5: A2: \u03bcr<\/sub> \u22481,8<\/li>\n
        • A4: \u03bcr<\/sub> \u22481,015<\/li>\n
        • A4L: \u03bcr<\/sub> \u22481,005<\/li>\n
        • F1: \u03bcr<\/sub> \u22485<\/li>\n<\/ul>\n

          S\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ho\u1eb7c thi\u1ebft b\u1ecb y t\u1ebf n\u01a1i c\u1ea7n \u0111\u1ed9 t\u1eeb h\u00f3a th\u1ea5p.<\/p>\n<\/div>\n

          C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n
          \n

          Lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 n\u00e0o \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb \u0111\u1ec3 ch\u1ed1ng \u0103n m\u00f2n gi\u1eefa c\u00e1c h\u1ea1t?<\/h3>\n

          N\u00ean \u01b0u ti\u00ean c\u00e1c nh\u00f3m A3 ho\u1eb7c A5 \u1ed5n \u0111\u1ecbnh, ho\u1eb7c A2\/A4 c\u00f3 h\u00e0m l\u01b0\u1ee3ng carbon th\u1ea5p v\u1edbi \u22640,03%. Ki\u1ec3m tra theo ti\u00eau chu\u1ea9n GB\/T 4334 \u0111\u1ec3 x\u00e1c nh\u1eadn t\u00ednh ph\u00f9 h\u1ee3p trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/p>\n<\/div>\n

          \n

          Gia c\u00f4ng ngu\u1ed9i \u1ea3nh h\u01b0\u1edfng nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ebfn t\u00ednh ch\u1ea5t t\u1eeb \u200b\u200bt\u00ednh c\u1ee7a v\u00edt \u0111\u1ecbnh v\u1ecb?<\/h3>\n

          Bi\u1ebfn d\u1ea1ng ngu\u1ed9i c\u00f3 th\u1ec3 g\u00e2y ra t\u1eeb t\u00ednh trong th\u00e9p austenit. H\u00e3y ch\u1ecdn c\u00e1c lo\u1ea1i th\u00e9p c\u00f3 \u0111\u1ed9 th\u1ea9m th\u1ea5u t\u1eeb th\u1ea5p nh\u01b0 A4L cho c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u \u1ed1c v\u00edt kh\u00f4ng nhi\u1ec5m t\u1eeb.<\/p>\n<\/div>\n

          \n

          N\u1ebfu k\u1ebft qu\u1ea3 ki\u1ec3m tra \u0111\u1ed9 c\u1ee9ng n\u1eb1m ngo\u00e0i ph\u1ea1m vi c\u1ee7a B\u1ea3ng 4 th\u00ec sao?<\/h3>\n

          H\u00e3y lo\u1ea1i b\u1ecf l\u00f4 h\u00e0ng \u0111\u00f3 v\u00ec n\u00f3 c\u00f3 th\u1ec3 cho th\u1ea5y qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t kh\u00f4ng \u0111\u00fang c\u00e1ch. Ki\u1ec3m tra l\u1ea1i b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p Vickers \u0111\u1ec3 l\u00e0m ti\u00eau chu\u1ea9n v\u00e0 \u0111i\u1ec1u tra quy tr\u00ecnh s\u1ea3n xu\u1ea5t.<\/p>\n<\/div>\n

          \n

          Li\u1ec7u th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh ngo\u00e0i B\u1ea3ng 2 kh\u00f4ng?<\/h3>\n

          Ch\u1ec9 \u0111\u01b0\u1ee3c ph\u00e9p th\u1ef1c hi\u1ec7n khi c\u00f3 s\u1ef1 th\u1ecfa thu\u1eadn gi\u1eefa ng\u01b0\u1eddi mua v\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t. Nh\u1eefng thay \u0111\u1ed5i tr\u00e1i ph\u00e9p c\u00f3 nguy c\u01a1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n ho\u1eb7c \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc.<\/p>\n<\/div>\n

          \n

          T\u1ea1i sao c\u1ea7n quy \u0111\u1ecbnh chi\u1ec1u d\u00e0i th\u1eed nghi\u1ec7m t\u1ed1i thi\u1ec3u cho vi\u1ec7c ki\u1ec3m tra m\u00f4-men xo\u1eafn?<\/h3>\n

          \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1edbp n\u1ed1i ho\u00e0n to\u00e0n, m\u00f4 ph\u1ecfng vi\u1ec7c s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf v\u00e0 ng\u0103n ng\u1eeba h\u1ecfng h\u00f3c s\u1edbm do \u0111\u1ed9 b\u00e1m kh\u00f4ng \u0111\u1ee7 trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t.<\/p>\n<\/div>\n

          \n

          L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 l\u1ef1a ch\u1ecdn gi\u1eefa \u0111\u1ed9 c\u1ee9ng 12H v\u00e0 21H?<\/h3>\n

          12H d\u00f9ng cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ed1ng \u0103n m\u00f2n th\u00f4ng th\u01b0\u1eddng; 21H d\u00f9ng cho c\u00e1c nhu c\u1ea7u v\u1ec1 \u0111\u1ed9 b\u1ec1n cao h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c c\u1ee5m l\u1eafp r\u00e1p d\u1ec5 b\u1ecb rung \u0111\u1ed9ng, c\u1ea7n s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 d\u1ebbo dai v\u00e0 \u0111\u1ed9 c\u1ee9ng.<\/p>\n<\/div>\n

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

          Introduction to the GB\/T 3098.16 Standard This standard specifies the mechanical properties of stainless steel set screws and similar non-tensile fasteners, focusing on austenitic grades. It ensures reliability in corrosive environments, such as marine or chemical applications, by defining chemical compositions and performance criteria. Compliance with GB\/T 3098.16-2014 guarantees fasteners withstand operational stresses without failure. […]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[220],"tags":[],"class_list":["post-5697","post","type-post","status-publish","format-standard","hentry","category-technical-documentation-and-references"],"_links":{"self":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5697","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/comments?post=5697"}],"version-history":[{"count":2,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5697\/revisions"}],"predecessor-version":[{"id":5699,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5697\/revisions\/5699"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/media?parent=5697"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/categories?post=5697"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/tags?post=5697"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}