{"id":5655,"date":"2025-12-23T03:41:05","date_gmt":"2025-12-23T03:41:05","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5655"},"modified":"2025-12-23T03:42:49","modified_gmt":"2025-12-23T03:42:49","slug":"gb-t-3098-25-2020-stainless-nickel-fasteners-guide","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/vi\/blog\/gb-t-3098-25-2020-stainless-nickel-fasteners-guide\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn v\u1ec1 \u1ed1c v\u00edt b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 niken theo ti\u00eau chu\u1ea9n GB\/T 3098.25-2020"},"content":{"rendered":"

Gi\u1edbi thi\u1ec7u v\u1ec1 Ti\u00eau chu\u1ea9n GB\/T 3098.25-2020<\/h2>\n

Ti\u00eau chu\u1ea9n GB\/T 3098.25-2020 l\u00e0 m\u1ed9t ti\u00eau chu\u1ea9n qu\u1ed1c gia quan tr\u1ecdng t\u1ea1i Trung Qu\u1ed1c, cung c\u1ea5p h\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 vi\u1ec7c l\u1ef1a ch\u1ecdn c\u00e1c lo\u1ea1i \u1ed1c v\u00edt b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 h\u1ee3p kim niken d\u1ef1a tr\u00ean c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc c\u1ee7a ch\u00fang. Ti\u00eau chu\u1ea9n n\u00e0y l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a b\u1ed9 ti\u00eau chu\u1ea9n GB\/T 3098 r\u1ed9ng h\u01a1n, \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc c\u1ee7a \u1ed1c v\u00edt, v\u00e0 \u0111\u1eb7c bi\u1ec7t t\u1eadp trung v\u00e0o c\u00e1c v\u1eadt li\u1ec7u nh\u01b0 th\u00e9p kh\u00f4ng g\u1ec9 austenit, martenit, ferrit, th\u00e9p kh\u00f4ng g\u1ec9 song pha v\u00e0 h\u1ee3p kim niken. M\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a n\u00f3 l\u00e0 h\u1ed7 tr\u1ee3 c\u00e1c k\u1ef9 s\u01b0, nh\u00e0 thi\u1ebft k\u1ebf v\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t trong vi\u1ec7c l\u1ef1a ch\u1ecdn c\u00e1c lo\u1ea1i \u1ed1c v\u00edt ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao, \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 ch\u1eafc ch\u1eafn trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00f4i tr\u01b0\u1eddng bi\u1ec3n, ch\u1ebf bi\u1ebfn h\u00f3a ch\u1ea5t v\u00e0 m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao.<\/p>\n

Ph\u1ea1m vi c\u1ee7a ti\u00eau chu\u1ea9n n\u00e0y bao g\u1ed3m c\u00e1c b\u1ea3ng th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc chi ti\u1ebft, n\u00eau r\u00f5 t\u1ef7 l\u1ec7 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 ch\u00ednh nh\u01b0 cacbon (C), silic (Si), mangan (Mn), ph\u1ed1t pho (P), l\u01b0u hu\u1ef3nh (S), crom (Cr), molypden (Mo), niken (Ni), \u0111\u1ed3ng (Cu), nit\u01a1 (N), niobi (Nb) v\u00e0 titan (Ti). C\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y \u0111\u01b0\u1ee3c \u0111\u1ed1i chi\u1ebfu v\u1edbi m\u00e3 ISO, c\u00e1c nh\u00f3m ph\u1ee5 ki\u1ec7n t\u01b0\u01a1ng \u1ee9ng v\u00e0 c\u00e1c ti\u00eau chu\u1ea9n li\u00ean quan \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch v\u00e0 \u0111\u1ed9 tin c\u1eady. V\u00ed d\u1ee5, ti\u00eau chu\u1ea9n n\u00e0y tham kh\u1ea3o GB\/T 3098.6 cho bu l\u00f4ng, \u1ed1c v\u00edt v\u00e0 \u0111inh t\u00e1n l\u00e0m b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9, GB\/T 3098.15 cho \u0111ai \u1ed1c v\u00e0 c\u00e1c ti\u00eau chu\u1ea9n kh\u00e1c cho c\u00e1c \u1ee9ng d\u1ee5ng chuy\u00ean bi\u1ec7t.<\/p>\n

V\u1ec1 m\u1eb7t th\u1ef1c ti\u1ec5n, h\u01b0\u1edbng d\u1eabn n\u00e0y gi\u00fap gi\u1ea3m thi\u1ec3u r\u1ee7i ro li\u00ean quan \u0111\u1ebfn s\u1ef1 h\u1ecfng h\u00f3c v\u1eadt li\u1ec7u b\u1eb1ng c\u00e1ch quy \u0111\u1ecbnh c\u00e1c th\u00e0nh ph\u1ea7n gi\u00fap t\u0103ng c\u01b0\u1eddng c\u00e1c \u0111\u1eb7c t\u00ednh nh\u01b0 \u0111\u1ed9 b\u1ec1n k\u00e9o, \u0111\u1ed9 b\u1ec1n ch\u1ea3y v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n gi\u1eefa c\u00e1c h\u1ea1t. N\u00f3 c\u0169ng bao g\u1ed3m c\u00e1c l\u01b0u \u00fd v\u1ec1 vi\u1ec7c tr\u00e1nh th\u00eam c\u00e1c nguy\u00ean t\u1ed1 kh\u00f4ng mong mu\u1ed1n trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u1ec3 duy tr\u00ec kh\u1ea3 n\u0103ng t\u00f4i luy\u1ec7n, c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc v\u00e0 t\u00ednh \u1ee9ng d\u1ee5ng. C\u00e1c chuy\u00ean gia trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt c\u01a1 kh\u00ed d\u1ef1a v\u00e0o ti\u00eau chu\u1ea9n n\u00e0y \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c l\u1ef1a ch\u1ecdn \u1ed1c v\u00edt, \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf t\u01b0\u01a1ng \u0111\u01b0\u01a1ng nh\u01b0 ISO 3506 v\u00e0 ti\u00eau chu\u1ea9n EN.<\/p>\n

Nh\u1eefng l\u1ee3i \u00edch ch\u00ednh bao g\u1ed3m c\u1ea3i thi\u1ec7n \u0111\u1ed9 an to\u00e0n trong c\u00e1c c\u1ea5u ki\u1ec7n k\u1ebft c\u1ea5u, ti\u1ebft ki\u1ec7m chi ph\u00ed th\u00f4ng qua vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p v\u00e0 n\u00e2ng cao hi\u1ec7u su\u1ea5t trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t. V\u00ed d\u1ee5, c\u00e1c lo\u1ea1i th\u00e9p austenit \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng v\u00ec \u0111\u1eb7c t\u00ednh kh\u00f4ng nhi\u1ec5m t\u1eeb v\u00e0 kh\u1ea3 n\u0103ng \u0111\u1ecbnh h\u00ecnh, trong khi c\u00e1c lo\u1ea1i th\u00e9p song pha mang l\u1ea1i s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n. Ti\u00eau chu\u1ea9n n\u00e0y th\u00fac \u0111\u1ea9y c\u00e1c th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t trong khoa h\u1ecdc v\u1eadt li\u1ec7u, nh\u1ea5n m\u1ea1nh t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c h\u1ee3p kim h\u00f3a ch\u00ednh x\u00e1c \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c k\u1ebft qu\u1ea3 c\u01a1 h\u1ecdc mong mu\u1ed1n. B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 c\u00e1c h\u01b0\u1edbng d\u1eabn n\u00e0y, c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p c\u00f3 th\u1ec3 gi\u1ea3m th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 chi ph\u00ed b\u1ea3o tr\u00ec li\u00ean quan \u0111\u1ebfn s\u1ef1 xu\u1ed1ng c\u1ea5p c\u1ee7a c\u00e1c chi ti\u1ebft l\u1eafp gh\u00e9p.<\/p>\n

Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 Austenit<\/h2>\n

B\u1ea3ng 1 t\u1eeb ti\u00eau chu\u1ea9n GB\/T 3098.25-2020 tr\u00ecnh b\u00e0y chi ti\u1ebft th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 austenit, tham chi\u1ebfu c\u00e1c ti\u00eau chu\u1ea9n GB\/T 3098.6, GB\/T 3098.15, GB\/T 3098.16 v\u00e0 GB\/T 3098.21. C\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a c\u00e1c chi ti\u1ebft l\u1eafp gh\u00e9p. C\u00e1c gi\u00e1 tr\u1ecb \u0111\u01b0\u1ee3c \u0111\u01b0a ra d\u01b0\u1edbi d\u1ea1ng ph\u1ea7n tr\u0103m kh\u1ed1i l\u01b0\u1ee3ng, h\u1ea7u h\u1ebft l\u00e0 gi\u1edbi h\u1ea1n t\u1ed1i \u0111a tr\u1eeb khi \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh l\u00e0 ph\u1ea1m vi ho\u1eb7c gi\u00e1 tr\u1ecb t\u1ed1i thi\u1ec3u. Th\u00e9p austenit n\u1ed5i ti\u1ebfng v\u1edbi kh\u1ea3 n\u0103ng t\u1ea1o h\u00ecnh, h\u00e0n v\u00e0 ch\u1ed1ng oxy h\u00f3a tuy\u1ec7t v\u1eddi, l\u00e0m cho ch\u00fang tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c chi ti\u1ebft l\u1eafp gh\u00e9p trong m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n.<\/p>\n

B\u1ea3ng n\u00e0y li\u1ec7t k\u00ea c\u00e1c m\u00e3 ISO c\u00f9ng v\u1edbi th\u00e0nh ph\u1ea7n nguy\u00ean t\u1ed1, bao g\u1ed3m C, Si, Mn, P, S, Cr, Mo, Ni, Cu, N, Nb v\u00e0 Ti, v\u00e0 g\u00e1n c\u00e1c nh\u00f3m \u1ed1c v\u00edt t\u01b0\u01a1ng \u1ee9ng nh\u01b0 A1, A2, A2L, A3, A4, A4L, A5 v\u00e0 A8. V\u00ed d\u1ee5, ISO 4305-303-00-I (nh\u00f3m A1) c\u00f3 C l\u00ean \u0111\u1ebfn 0,12, Cr t\u1eeb 17,0-19,0 \u200b\u200bv\u00e0 S \u22650,15 \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng gia c\u00f4ng. C\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt n\u00e0y \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n v\u1ec1 hi\u1ec7u su\u1ea5t, ch\u1eb3ng h\u1ea1n nh\u01b0 duy tr\u00ec c\u1ea5u tr\u00fac austenit \u0111\u1ec3 c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh kh\u00f4ng t\u1eeb t\u00ednh.<\/p>\n

C\u00e1c ghi ch\u00fa nh\u1ea5n m\u1ea1nh r\u1eb1ng kh\u00f4ng \u0111\u01b0\u1ee3c th\u00eam c\u00e1c th\u00e0nh ph\u1ea7n kh\u00f4ng x\u00e1c \u0111\u1ecbnh m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 \u0111\u1ed3ng \u00fd c\u1ee7a ng\u01b0\u1eddi mua, ngo\u1ea1i tr\u1eeb qu\u00e1 tr\u00ecnh tinh ch\u1ebf, v\u00e0 ph\u1ea3i c\u00f3 bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba \u0111\u1ed1i v\u1edbi c\u00e1c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u. C\u00e1c nh\u00f3m n\u00e0y t\u01b0\u01a1ng \u0111\u1ed3ng nh\u01b0ng kh\u00f4ng ho\u00e0n to\u00e0n gi\u1ed1ng v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n GB\/T kh\u00e1c. D\u1eef li\u1ec7u n\u00e0y h\u1ed7 tr\u1ee3 vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u cho c\u00e1c t\u1ea3i tr\u1ecdng v\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ee5 th\u1ec3, ng\u0103n ng\u1eeba c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 n\u1ee9t \u0103n m\u00f2n do \u1ee9ng su\u1ea5t.<\/p>\n

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<\/div>\n<\/div>\n
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<\/div>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
M\u00e3 ISO<\/th>\nC<\/th>\nSi<\/th>\nMn<\/th>\nP<\/th>\nS<\/th>\nCr<\/th>\nMo<\/th>\nNi<\/th>\n\u0110\u1ed3ng<\/th>\nN<\/th>\nNb<\/th>\nTi<\/th>\nNh\u00f3m<\/th>\n<\/tr>\n<\/thead>\n
4305-303-00-I<\/td>\n0.12<\/td>\n1<\/td>\n2<\/td>\n0.06<\/td>\n\u22650,15<\/td>\n17.0~19.0<\/td>\n–<\/td>\n8.0~10.0<\/td>\n1<\/td>\n0.1<\/td>\n–<\/td>\n–<\/td>\nA1<\/td>\n<\/tr>\n
4301-304-00-I<\/td>\n0.07<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.03<\/td>\n17.5~19.5<\/td>\n–<\/td>\n8.0~10.5<\/td>\n–<\/td>\n0.1<\/td>\n–<\/td>\n–<\/td>\nA2<\/td>\n<\/tr>\n
4307-304-03-I<\/td>\n0.03<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.03<\/td>\n17.5~19.5<\/td>\n–<\/td>\n8.0~10.5<\/td>\n–<\/td>\n0.1<\/td>\n–<\/td>\n–<\/td>\nA2L<\/td>\n<\/tr>\n
4311-304-53-I<\/td>\n0.03<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.03<\/td>\n17.5~19.5<\/td>\n–<\/td>\n8.0~11.0<\/td>\n–<\/td>\n0.12~0.22<\/td>\n–<\/td>\n–<\/td>\nA2L<\/td>\n<\/tr>\n
4567-304-98-X<\/td>\n0.08<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.03<\/td>\n17.0~19.0<\/td>\n–<\/td>\n8.0~10.5<\/td>\n1.0~3.0<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\nA2<\/td>\n<\/tr>\n
4567-304-30-I<\/td>\n0.04<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.03<\/td>\n17.0~19.0<\/td>\n–<\/td>\n8.0~10.5<\/td>\n3.0~4.0<\/td>\n0.1<\/td>\n–<\/td>\n–<\/td>\nA3<\/td>\n<\/tr>\n
4541-321-00-I<\/td>\n0.08<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.03<\/td>\n17.0~19.0<\/td>\n–<\/td>\n9.0~12.0<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n5\u00d7C~0.70<\/td>\nA3<\/td>\n<\/tr>\n
4550-347-00-I<\/td>\n0.08<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.03<\/td>\n17.0~19.0<\/td>\n–<\/td>\n9.0~12.0<\/td>\n–<\/td>\n–<\/td>\n10\u00d7C~1.00<\/td>\n–<\/td>\nA3<\/td>\n<\/tr>\n
4401-316-00-I<\/td>\n0.08<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.03<\/td>\n16.0~18.0<\/td>\n2.00~3.00<\/td>\n10.0~13.0<\/td>\n–<\/td>\n0.1<\/td>\n–<\/td>\n–<\/td>\nA4<\/td>\n<\/tr>\n
4404-316-03-I<\/td>\n0.03<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.03<\/td>\n16.5~18.5<\/td>\n2.00~3.00<\/td>\n10.0~13.0<\/td>\n–<\/td>\n0.1<\/td>\n–<\/td>\n–<\/td>\nA4L<\/td>\n<\/tr>\n
4406-316-53-I<\/td>\n0.03<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.03<\/td>\n16.5~18.5<\/td>\n2.00~3.00<\/td>\n10.0~12.5<\/td>\n–<\/td>\n0.12~0.22<\/td>\n–<\/td>\n–<\/td>\nA4L<\/td>\n<\/tr>\n
4578-316-76-E<\/td>\n0.04<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.015<\/td>\n16.5~17.5<\/td>\n2.00~2.50<\/td>\n10.0~11.0<\/td>\n3.0~3.5<\/td>\n0.1<\/td>\n–<\/td>\n–<\/td>\nA4<\/td>\n<\/tr>\n
4571-316-35-I<\/td>\n0.08<\/td>\n1<\/td>\n2<\/td>\n0.045<\/td>\n0.03<\/td>\n16.5~18.5<\/td>\n2.00~2.50<\/td>\n10.5~13.5<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n5\u00d7C~0.70<\/td>\nA5<\/td>\n<\/tr>\n
4529-089-26-I<\/td>\n0.02<\/td>\n0.75<\/td>\n2<\/td>\n0.035<\/td>\n0.015<\/td>\n19.0~21.0<\/td>\n6.0~7.0<\/td>\n24.0~26.0<\/td>\n0.5~1.5<\/td>\n0.15~0.25<\/td>\n–<\/td>\n–<\/td>\nA8<\/td>\n<\/tr>\n
4547-312-54-I<\/td>\n0.02<\/td>\n0.7<\/td>\n1<\/td>\n0.035<\/td>\n0.015<\/td>\n19.5~20.5<\/td>\n6.0~7.0<\/td>\n17.5~18.5<\/td>\n0.50~1.00<\/td>\n0.18~0.25<\/td>\n–<\/td>\n–<\/td>\nA8<\/td>\n<\/tr>\n
4478-083-67-U<\/td>\n0.03<\/td>\n1<\/td>\n2<\/td>\n0.04<\/td>\n0.03<\/td>\n20.0~22.0<\/td>\n6.0~7.0<\/td>\n23.5~25.5<\/td>\n0.75<\/td>\n0.18~0.25<\/td>\n–<\/td>\n–<\/td>\nA8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
<\/div>\n<\/div>\n<\/div>\n<\/div>\n

Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p mactenxit, ferit v\u00e0 song pha<\/h2>\n

B\u1ea3ng 2 tr\u00ecnh b\u00e0y th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 mactenxit, ferrit v\u00e0 song pha, nh\u1eefng th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu cho c\u00e1c chi ti\u1ebft l\u1eafp gh\u00e9p \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u1eeba ph\u1ea3i. Th\u00e9p mactenxit c\u00f3 th\u1ec3 t\u00f4i c\u1ee9ng th\u00f4ng qua x\u1eed l\u00fd nhi\u1ec7t, th\u00e9p ferrit c\u00f3 \u0111\u1ed9 d\u1ebbo t\u1ed1t, v\u00e0 th\u00e9p song pha k\u1ebft h\u1ee3p pha austenit v\u00e0 ferrit cho \u0111\u1ed9 b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7 b\u1ec1 m\u1eb7t.<\/p>\n

M\u00e3 ISO \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi c\u00e1c nguy\u00ean t\u1ed1 v\u00e0 nh\u00f3m nh\u01b0 C1, C3, C4, F1, D2, D4, D6 v\u00e0 D8. \u0110\u1ed1i v\u1edbi th\u00e9p mactenxit, ISO 4006-410-00-I (C1) c\u00f3 C 0,08~0,15 v\u00e0 Cr 11,5~13,5. V\u00ed d\u1ee5 v\u1ec1 th\u00e9p song pha bao g\u1ed3m ISO 4462-318-03-I (D6) v\u1edbi Cr 21,0~23,0 v\u00e0 Mo 2,5~3,5. Ph\u1ea7n ghi ch\u00fa bao g\u1ed3m c\u00e1c y\u00eau c\u1ea7u v\u1ec1 vonfram \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 m\u00e3 nh\u1ea5t \u0111\u1ecbnh v\u00e0 c\u00e1c ph\u00e9p t\u00ednh PREN \u0111\u1ec3 nh\u1eadn d\u1ea1ng th\u00e9p song pha.<\/p>\n

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<\/div>\n<\/div>\n
\n
<\/div>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
M\u00e3 ISO<\/th>\nC<\/th>\nSi<\/th>\nMn<\/th>\nP<\/th>\nS<\/th>\nCr<\/th>\nMo<\/th>\nNi<\/th>\n\u0110\u1ed3ng<\/th>\nN<\/th>\nNb<\/th>\nTi<\/th>\nNh\u00f3m<\/th>\n<\/tr>\n<\/thead>\n
Th\u00e9p kh\u00f4ng g\u1ec9 Martensitic<\/td>\n<\/tr>\n
4006-410-00-I<\/td>\n0.08~0.15<\/td>\n1<\/td>\n1.5<\/td>\n0.04<\/td>\n0.03<\/td>\n11.5~13.5<\/td>\n–<\/td>\n0.75<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\nC1<\/td>\n<\/tr>\n
4021-420-00-I<\/td>\n0.16~0.25<\/td>\n1<\/td>\n1.5<\/td>\n0.04<\/td>\n0.03<\/td>\n12.0~14.0<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\nC1<\/td>\n<\/tr>\n
4028-420-00-I<\/td>\n0.26~0.35<\/td>\n1<\/td>\n1.5<\/td>\n0.04<\/td>\n0.03<\/td>\n12.0~14.0<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\nC1<\/td>\n<\/tr>\n
4057-431-00-X<\/td>\n0.12~0.22<\/td>\n1<\/td>\n1.5<\/td>\n0.04<\/td>\n0.03<\/td>\n15.0~17.0<\/td>\n–<\/td>\n1.50~2.50<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\nC3<\/td>\n<\/tr>\n
4005-416-00-I<\/td>\n0.08~0.15<\/td>\n1<\/td>\n1.5<\/td>\n0.04<\/td>\n\u22650,15<\/td>\n12.0~14.0<\/td>\n0.6<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\nC4<\/td>\n<\/tr>\n
Th\u00e9p kh\u00f4ng g\u1ec9 Ferrit<\/td>\n<\/tr>\n
4016-430-00-I<\/td>\n0.08<\/td>\n1<\/td>\n1<\/td>\n0.04<\/td>\n0.03<\/td>\n16.0~18.0<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\nF1<\/td>\n<\/tr>\n
Th\u00e9p kh\u00f4ng g\u1ec9 song pha<\/td>\n<\/tr>\n
4482-320-01-X<\/td>\n0.03<\/td>\n1<\/td>\n4.0~6.0<\/td>\n0.035<\/td>\n0.03<\/td>\n19.5~21.5<\/td>\n0.10~0.60<\/td>\n1.50~3.50<\/td>\n1<\/td>\n0.05~0.20<\/td>\n–<\/td>\n–<\/td>\nD2<\/td>\n<\/tr>\n
4362-323-04-I<\/td>\n0.03<\/td>\n1<\/td>\n2<\/td>\n0.035<\/td>\n0.015<\/td>\n22.0~24.5<\/td>\n0.10~0.60<\/td>\n3.5~5.5<\/td>\n0.10~0.60<\/td>\n0.05~0.20<\/td>\n–<\/td>\n–<\/td>\nD2<\/td>\n<\/tr>\n
4062-322-02-U<\/td>\n0.03<\/td>\n1<\/td>\n2<\/td>\n0.04<\/td>\n0.01<\/td>\n21.5~24.0<\/td>\n0.45<\/td>\n1.00~2.90<\/td>\n–<\/td>\n0.16~0.28<\/td>\n–<\/td>\n–<\/td>\nD4<\/td>\n<\/tr>\n
4162-321-01-E<\/td>\n0.04<\/td>\n1<\/td>\n4.0~6.0<\/td>\n0.04<\/td>\n0.015<\/td>\n21.0~22.0<\/td>\n0.10~0.80<\/td>\n1.35~1.90<\/td>\n0.10~0.80<\/td>\n0.20~0.25<\/td>\n–<\/td>\n–<\/td>\nD4<\/td>\n<\/tr>\n
4662-824-41-X<\/td>\n0.03<\/td>\n0.7<\/td>\n2.50~4.0<\/td>\n0.035<\/td>\n0.005<\/td>\n23.0~25.0<\/td>\n1.00~2.00<\/td>\n3.0~4.5<\/td>\n0.10~0.80<\/td>\n0.20~0.30<\/td>\n–<\/td>\n–<\/td>\nD4<\/td>\n<\/tr>\n
4462-318-03-I<\/td>\n0.03<\/td>\n1<\/td>\n2<\/td>\n0.035<\/td>\n0.015<\/td>\n21.0~23.0<\/td>\n2.5~3.5<\/td>\n4.5~6.5<\/td>\n–<\/td>\n0.10~0.22<\/td>\n–<\/td>\n–<\/td>\nD6<\/td>\n<\/tr>\n
4481-312-60-J<\/td>\n0.03<\/td>\n1<\/td>\n1.5<\/td>\n0.04<\/td>\n0.03<\/td>\n24.0~26.0<\/td>\n2.5~3.5<\/td>\n5.5~7.5<\/td>\n–<\/td>\n0.08~0.30<\/td>\n–<\/td>\n–<\/td>\nD6<\/td>\n<\/tr>\n
4410-327-50-E<\/td>\n0.03<\/td>\n1<\/td>\n2<\/td>\n0.035<\/td>\n0.015<\/td>\n24.0~26.0<\/td>\n3.0~4.5<\/td>\n6.0~8.0<\/td>\n–<\/td>\n0.24~0.35<\/td>\n–<\/td>\n–<\/td>\nD8<\/td>\n<\/tr>\n
4501-327-60-I<\/td>\n0.03<\/td>\n1<\/td>\n1<\/td>\n0.03<\/td>\n0.01<\/td>\n24.0~26.0<\/td>\n3.0~4.0<\/td>\n6.0~8.0<\/td>\n0.5~1.0<\/td>\n0.20~0.30<\/td>\n–<\/td>\n–<\/td>\nD8<\/td>\n<\/tr>\n
4507-325-20-I<\/td>\n0.03<\/td>\n0.7<\/td>\n2<\/td>\n0.035<\/td>\n0.015<\/td>\n24.0~26.0<\/td>\n3.0~4.0<\/td>\n6.0~8.0<\/td>\n1.0~2.5<\/td>\n0.20~0.30<\/td>\n–<\/td>\n–<\/td>\nD8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
<\/div>\n<\/div>\n<\/div>\n<\/div>\n

Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ecbu nhi\u1ec7t cao v\u00e0 h\u1ee3p kim niken<\/h2>\n

B\u1ea3ng 3 tr\u00ecnh b\u00e0y c\u00e1c th\u00e0nh ph\u1ea7n v\u1eadt li\u1ec7u cho c\u00e1c \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao, bao g\u1ed3m th\u00e9p mactenxit v\u00e0 th\u00e9p austenit t\u00f4i c\u1ee9ng b\u1eb1ng k\u1ebft t\u1ee7a v\u1edbi h\u1ee3p kim niken. C\u00e1c v\u1eadt li\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho nhi\u1ec7t \u0111\u1ed9 cao, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng r\u00e3o v\u00e0 b\u1ea3o v\u1ec7 ch\u1ed1ng oxy h\u00f3a.<\/p>\n

C\u00e1c nh\u00f3m bao g\u1ed3m CH0, CH1, CH2, V ho\u1eb7c VH, VW, SD, SB v\u00e0 718. \u0110\u1ed1i v\u1edbi h\u1ee3p kim niken 2.4668 (718), C c\u00f3 h\u00e0m l\u01b0\u1ee3ng 0,02~0,08, v\u1edbi h\u00e0m l\u01b0\u1ee3ng Ni cao (50,00~55,00) v\u00e0 Mo cao (2,80~3,30). Ph\u1ea7n ghi ch\u00fa n\u00eau chi ti\u1ebft c\u00e1c nguy\u00ean t\u1ed1 b\u1ed5 sung nh\u01b0 V, Al, B, Co, Fe v\u00e0 Nb cho c\u00e1c m\u00e3 c\u1ee5 th\u1ec3.<\/p>\n

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M\u00e3 ISO<\/th>\nC<\/th>\nSi<\/th>\nMn<\/th>\nP<\/th>\nS<\/th>\nCr<\/th>\nMo<\/th>\nNi<\/th>\n\u0110\u1ed3ng<\/th>\nN<\/th>\nNb<\/th>\nTi<\/th>\nNh\u00f3m<\/th>\n<\/tr>\n<\/thead>\n
Th\u00e9p kh\u00f4ng g\u1ec9 Martensitic<\/td>\n<\/tr>\n
4021-420-00-I<\/td>\n0.16~0.25<\/td>\n1<\/td>\n1.5<\/td>\n0.04<\/td>\n0.03<\/td>\n12.0~14.0<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\nCH0<\/td>\n<\/tr>\n
4028-420-00-I<\/td>\n0.26~0.35<\/td>\n1<\/td>\n1.5<\/td>\n0.04<\/td>\n0.03<\/td>\n12.0~14.0<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\nCH1<\/td>\n<\/tr>\n
4057-431-00-X<\/td>\n0.12~0.22<\/td>\n1<\/td>\n1.5<\/td>\n0.04<\/td>\n0.03<\/td>\n15.0~17.0<\/td>\n–<\/td>\n1.50~2.5<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\nCH2<\/td>\n<\/tr>\n
4923-422-77-E<\/td>\n0.18~0.24<\/td>\n0.5<\/td>\n0.40~0.90<\/td>\n0.025<\/td>\n0.015<\/td>\n11.0~12.5<\/td>\n0.8~1.2<\/td>\n0.30~0.80<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\nV ho\u1eb7c VH<\/td>\n<\/tr>\n
1.4913<\/td>\n0.17~0.23<\/td>\n0.5<\/td>\n0.40~0.90<\/td>\n0.025<\/td>\n0.015<\/td>\n10.0~11.5<\/td>\n0.50~0.80<\/td>\n0.20~0.60<\/td>\n–<\/td>\n0.05~0.10<\/td>\n0.25~0.55<\/td>\n–<\/td>\nVW<\/td>\n<\/tr>\n
Th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 h\u1ee3p kim niken \u0111\u01b0\u1ee3c t\u00f4i c\u1ee9ng b\u1eb1ng k\u1ebft t\u1ee7a Austenit<\/td>\n<\/tr>\n
4980-662-86-X<\/td>\n0.08<\/td>\n1<\/td>\n2<\/td>\n0.04<\/td>\n0.03<\/td>\n13.5~16.0<\/td>\n1.0~1.5<\/td>\n24.0~27.0<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n1.90~2.35<\/td>\nSD<\/td>\n<\/tr>\n
2.4952<\/td>\n0.04~0.10<\/td>\n1<\/td>\n1<\/td>\n0.02<\/td>\n0.015<\/td>\n18.0~21.0<\/td>\n–<\/td>\n\u226565<\/td>\n0.2<\/td>\n–<\/td>\n–<\/td>\n1.80~2.70<\/td>\nSB<\/td>\n<\/tr>\n
2.4668<\/td>\n0.02~0.08<\/td>\n0.035<\/td>\n0.035<\/td>\n0.015<\/td>\n0.015<\/td>\n17.0~21.0<\/td>\n2.80~3.30<\/td>\n50.00~55.00<\/td>\n0.3<\/td>\n–<\/td>\n–<\/td>\n0.60~1.20<\/td>\n718<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
<\/div>\n<\/div>\n<\/div>\n<\/div>\n

C\u00e1c lo\u1ea1i th\u00e9p th\u01b0\u1eddng d\u00f9ng cho \u1ed1c v\u00edt d\u1eadp ngu\u1ed9i \u2013 Th\u00e9p Austenit<\/h2>\n

B\u1ea3ng A.1 li\u1ec7t k\u00ea c\u00e1c m\u00e1c th\u00e9p austenit th\u00f4ng d\u1ee5ng d\u00f9ng cho c\u00e1c lo\u1ea1i \u1ed1c v\u00edt d\u1eadp ngu\u1ed9i, \u0111\u1ed1i chi\u1ebfu c\u00e1c lo\u1ea1i, nh\u00f3m, m\u00e3 ISO, k\u00fd hi\u1ec7u ch\u00e2u \u00c2u, m\u00e3 ASTM, t\u00ean g\u1ecdi th\u00f4ng d\u1ee5ng c\u1ee7a M\u1ef9, v\u1ecb tr\u00ed GB\/T, m\u00e3 GB\/T 20878 v\u00e0 c\u00e1c ti\u00eau chu\u1ea9n li\u00ean quan. \u0110i\u1ec1u n\u00e0y gi\u00fap l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u cho s\u1ea3n xu\u1ea5t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn \u1ed1c v\u00edt v\u00e0 bu l\u00f4ng.<\/p>\n

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<\/div>\n\n\n\n\n\n\n\n
Lo\u1ea1i<\/th>\nNh\u00f3m<\/th>\nM\u00e3 ISO<\/th>\nB\u1ed9 lu\u1eadt Ch\u00e2u \u00c2u<\/th>\nTi\u00eau chu\u1ea9n Ch\u00e2u \u00c2u<\/th>\nM\u00e3 ASTM<\/th>\nT\u00ean ti\u1ebfng M\u1ef9<\/th>\nV\u1ecb tr\u00ed GB\/T<\/th>\nM\u00e3 GB\/T 20878<\/th>\nC\u00e1c ti\u00eau chu\u1ea9n li\u00ean quan<\/th>\n<\/tr>\n<\/thead>\n
Austenit l\u01b0u hu\u1ef3nh<\/td>\nA1<\/td>\n4305-303-00-I<\/td>\n1.4305<\/td>\nX8CrNiS18-9<\/td>\nS30300<\/td>\n303<\/td>\nCh\u01b0\u01a1ng 5, B\u1ea3ng 1<\/td>\nS30317<\/td>\nASTM A959, EN 10088-3<\/td>\n<\/tr>\n
A1<\/td>\n4570-303-31-I<\/td>\n1.457<\/td>\nX6CrNiCuS18-9-2<\/td>\nS30331<\/td>\n303Cu<\/td>\nGB\/T 3098.6 GB\/T 3098.15<\/td>\n–<\/td>\nEN 10088-3<\/td>\n<\/tr>\n
\u0110a d\u1ee5ng Austenit<\/td>\nA2L<\/td>\n4307-304-03-I<\/td>\n1.4307<\/td>\nX2CrNi18-9<\/td>\nS30403<\/td>\n304L<\/td>\nCh\u01b0\u01a1ng 5, B\u1ea3ng 1<\/td>\nS30403<\/td>\nASTM A959, EN 10088-3, EN 10263-5, EN 10269<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Introduction to the GB\/T 3098.25-2020 Standard GB\/T 3098.25-2020 is a critical national standard in China that provides a comprehensive guideline for the selection of stainless steel and nickel alloy fasteners based on their mechanical performance characteristics. This standard is part of the broader GB\/T 3098 series, which addresses mechanical properties of fasteners, and it specifically […]<\/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":[1],"tags":[],"class_list":["post-5655","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5655","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=5655"}],"version-history":[{"count":2,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5655\/revisions"}],"predecessor-version":[{"id":5657,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5655\/revisions\/5657"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/media?parent=5655"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/categories?post=5655"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/tags?post=5655"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}