中外常用鋼號對照表及化學成分 大野機械技術部 　 產品名 稱標準 牌號 化學成分% 國外產品牌號 C Si Mn Cr Ni Mo Cu Ti S P Al 美國 日本 德國 不銹鋼 GB1220-92 00Cr19Ni10 ≤0.03 ≤1.0 ≤2.0 18.0～20.0 8.0～12.0 - - - ≤0.03 ≤0.035 - 304L SUS304L X2CrNi -18.9 1Cr19Ni12 ≤0.12 ≤1.0 ≤2.0 17.0～19.0 10.5～13.0 - - - ≤0.03 ≤0.035 - 305 SUS305 X5CrNi -19.11 0Cr25Ni12 ≤0.08 ≤1.0 ≤2.0 24.0～26.0 19.0～22.0 - - - ≤0.03 ≤0.035 - 310S SUS-310S 0Cr17Ni12Mo2 ≤0.08 ≤1.0 ≤2.0 16.0～18.5 10.0～14.0 2.0～3.0 - - ≤0.03 ≤0.035 - 316 SUS316 X5CrNi -Mo18.1 00Cr17Ni14Mo2 ≤0.03 ≤1.0 ≤2.0 16.0～18.0 12.0～15.0 2.0～3.0 - - ≤0.035 ≤0.035 - 316L SUS316L X2CrN i-Mo18.1 1Cr18Ni12Mo2Ti ≤0.12 ≤1.0 ≤2.0 16.0～19.0 11.0～14.0 1.8～2.5 - 5*(c%-0.02～0.8 ≤0.03 ≤0.035 - X10CrNi -MoTi 0Cr18Ni12Mo2Ti ≤0.08 ≤1.0 ≤2.0 16.0～19.0 11.0～14.0 1.8～25 - 5*c%～0.7 ≤0.03 ≤0.035 - 316Ti SUS316Ti X10CrNi- MoTi18.0 1Cr18Ni9Ti ≤0.12 ≤1.0 ≤2.0 17.0～19.0 8.0～11.0 - - 5*(c%-0.02～0.8 ≤0.03 ≤0.035 - 321H SUS312H X12CrNi -Ti18.9 2Cr13 0.16～0.25 ≤1.0 ≤1.0 12.0～14.0 ≤0.6 - - ≤0.03 ≤0.035 - 420 SUS420J1 X20Cr13 9Cr18MoV 0.85～0.95 ≤0.8 ≤0.8 17.0～19.0 ≤0.6 1.0～1.3 - ≤0.03 ≤0.035 - 440B SUS440B X90CrMo -V18 0Cr17Ni7Al ≤0.09 ≤1.0 ≤1.0 16.0～18.0 6.5～7.75 - ≤0.5 ≤0.03 ≤0.035 0.75～1.5 17-7PH (631) SUS631 X7CrNi -A117.7 1Cr18Ni9 ≤0.15 ≤1.0 ≤2.0 17.0～19.0 8.0～10.0 - - - ≤0.03 ≤0.035 - 302 SUS302 Y1Cr18Ni9 ≤0.15 ≤1.0 ≤2.0 17.0～19.0 8.0～10.0 需要時加≤0.6 - ≤0.15 ≤0.20 - 303 SUS303 X12CrNi -S18.8 0Cr18Ni9 ≤0.07 ≤1.0 ≤2.0 17.0～19.0 8.0～11.0 - ≤0.03 ≤0.035 - 304 SUS304 X5Cr- Ni18.9   產品名 稱標準 牌號 化學成分% 國外產品牌號 C Si Mn Cr Ni Mo Cu Ti S P N 美國 日本 德國 普通碳素 結構鋼 GB700-88 Q215 (A2、C2) 0.09～0.15 ≤0.3 0.25～0.55 - - - - - ≤0.05 ≤0.045 - 1010 SBC300 C15 Q235 (A3、C3) 0.14～0.22 ≤0.3 0.3～0.65 - - - - - ≤0.05 ≤0.045 - 1015 SCD3 C22 Q255 (A4、C4) 0.18～0.28 ≤0.3 0.4～0.7 - - - - - ≤0.05 ≤0.045 - 1020 1023 1025 SCD4 C22 優質碳素 結構鋼 GB699-88 10 0.07～0.14 0.17～0.37 0.35～0.65 ≤0.15 ≤0.25 - ≤0.25 - ≤0.035 ≤0.035 - 1010 1012 SWRCH10A CK10 15 0.12～0.17 0.17～0.37 0.35～0.65 ≤0.25 ≤0.25 - ≤0.25 - ≤0.035 ≤0.035 - 1015 1017 SWRCH15A CK15 25 0.22～0.30 0.17～0.37 0.5～0.8 ≤0.25 ≤0.25 - ≤0.25 - ≤0.035 ≤0.035 - 1025 1026 1029 SWRCH25K CK25 30 0.27～0.35 0.17～0.37 0.5～0.8 ≤0.25 ≤0.25 - ≤0.25 - ≤0.035 ≤0.035 - 1030 1034 SWRCH30K CK30 35 0.32～0.40 0.17～0.37 0.5～0.8 ≤0.25 ≤0.25 - ≤0.25 - ≤0.035 ≤0.035 - 1034 1035 SWRCH35K CK35 45 0.42～0.50 0.17～0.37 0.5～0.8 ≤0.25 ≤0.25 - ≤0.25 - ≤0.035 ≤0.035 - 1045 SWRCH45K CK45 C Si Mn Cr Ni Mo Cu Ti S P V 彈簧鋼 GB1222-84 55SiMn 0.52～0.60 1.5～2.0 0.6～0.9 ≤0.35 ≤0.35 - ≤0.25 - ≤0.035 ≤0.035 - 9255 SUP6 SUP7 55Si7 60Si2Mn 0.56～0.64 1.5～20.0 0.6～0.9 ≤0.35 ≤0.35 - ≤0.25 - ≤0.035 ≤0.035 - 9260 SUP6 SUP7 60SiMn5 60Si2MnA 0.56～0.64 1.6～2.0 0.6～0.9 ≤0.35 ≤0.35 - ≤0.25 - ≤0.03 ≤0.03 - 碳素工具鋼 GB1298-86 T8、T8A 0.75～0.84 ≤0.35 ≤0.4 ≤0.25 ≤0.2 - ≤0.3 - ≤0.03 ≤0.03 - W1-8 SK5 C85W T9、T9A 0.85～0.94 ≤0.35 ≤0.4 - - - - - ≤0.03 ≤0.03 - W1-8.5 SK4 T10、T10A 0.95～1.04 ≤0.35 ≤0.4 - - - ≤0.03 ≤0.03 - W1-9.5 SK3 C105W2