GB-T12 ASTM-W1-1.2C JIS-SK2 DIN-C125W碳素工具钢碳素弹簧钢SK2   碳素工具钢中国:T7 T8 T8Mn T9 T10 T11 T12 T13合金工具钢 9SiCr 8MnSi Cr06 Cr2 9Cr2 4CrW2Si 5CrW2Si 6CrW2Si Cr12 Cr12Mo1V1 Cr12MoV Cr5Mo1V 9Mn2V CrWMn 9CrWMn 5CrMnMo 5CrNiMo 3Cr2W8V 4Cr3MoSiV 4Cr5MoSiV 3Cr2Mo
    碳素工具钢国标: TC70 TC80 TC90 TC105 TC120 TC140 100Cr2 210Cr12 160CrMoV12 100CrMoV5 90MnV2 105WCr1 30WCrV9 40CrMoV5 H6 35CrMo2
    碳素工具钢美国: W1-7 W1A-8 W1-8 W1A-8.5 W1-0.9C W2-8.5 W1A-9.5 W1-9 W2-9.5 W1-1.0C W1A-10.5 W1A-11.5 W1-12 W1-1.2C T72301
    碳素工具钢日本:SK6 SK7 SK5 SK4 SK3 SK2 SK1
    碳素工具钢德国:C70W1 C70W2 C80W1 C80W2 C85W 080W2 C75W3 C85W2 C90W3 C100W2 C105W1 C105W2 C125W C135W
    碳素工具钢英国法国: 060A81 BW1A BW1B D1 1407 C70E2U C80E2U Y75 C90E2U C105E2U C120E3U C140E3U 
  GB-T12 ASTM-W1-1.2C JIS-SK2 DIN-C125W碳素工具钢碳素弹簧钢SK2