冷打或冷鍛用極低碳鋼與中碳—化學成份%
規格SiMnPCrAI
1035ACR0.35~0.390.01以下0.60~0.90  0.20~0.400.010以上
1040ACR0.40~0.44

 

碳素硼鋼及鉻釩硼合金硼鋼—化學成份%
規格SiMnPVB
10B200.18~0.230.10以下0.30~0.600.030以下0.035以下/0.0005以上
10B210.70~1.00
10B22
10B290.26~0.300.15~0.35
10B300.28~0.34
10B330.32~0.36
10B380.35~0.42
50BV180.15~0.200.10以下0.70~1.000.30以下0.35以下0.30~0.500.0005以上
50BV210.18~0.23
50BV300.27~0.33
50BV330.32~0.360.15~0.35

 

JIS G4105鉻鉬合金鋼—化學成份%
規格SiMnPCrMo
SCM4150.13~0.180.15~0.350.60~0.850.030以下0.030以下0.90~1.200.15~0.30
SCM4180.16~0.21
SCM4200.18~0.23
SCM4210.17~0.230.70~1.00
SCM4300.28~0.330.60~0.85
SCM4320.27~0.370.30~0.601.00~1.50
SCM4350.27~0.370.60~0.850.90~1.20
SCM4400.33~0.38
SCM4450.43~0.48
SCM8220.20~0.250.35~0.45

 

SAE/AISI條鋼、線材、鍛造用半成品碳鋼—化學成份%
SAE 記號CMnPS
10050.06以下0.35以下0.030以下0.050以下
10060.08以下0.25~0.40
10080.10以下0.30~0.50
10100.08~0.130.30~0.60
10120.10~0.15
10150.13~0.180.30~0.60
10160.60~0.90
10170.15~0.200.30~0.60
10180.60~0.90
10200.18~0.230.30~0.60
10210.60~0.90
10220.70~1.00
10230.20~0.250.30~0.60
10250.22~0.28
10260.60~0.90
10290.25~0.31
10300.28~0.34
10350.32~0.38
10370.70~1.00
10380.35~0.420.60~0.90
10390.37~0.440.70~1.00
10400.60~0.90
10420.40~0.47
10430.70~1.00
10440.43~0.500.30~0.60
10450.60~0.90
10460.70~1.00
10490.46~0.530.60~0.90
10500.48~0.55
10530.70~1.00
10550.50~0.600.60~0.90
10600.55~0.65
10650.60~0.70
10700.65~0.75
10780.72~0.850.30~0.60
10800.75~0.880.60~0.90
10860.80~0.930.30~0.50
10900.85~0.980.60~0.90
10950.90~1.030.30~0.50