牌號化學成分(%)
CSiMnPSNiCrMoCu其他
SCS1≤0.15≤1.50≤1.00≤0.04≤0.04①11.5~14.0②
SCSCS20.16~0.24≤1.50≤1.00≤0.04≤0.04①11.5~14.0②
SCS2A0.25~0.40≤1.50≤1.00≤0.04≤0.04①11.5~14.0②
SCS3≤0.15≤1.50≤1.00≤0.04≤0.040.50~1.51011.5~14.00.15~1.00
SCS4≤0.15≤1.50≤1.00≤0.04≤0.040.50~2.5011.5~14.0
SCS5≤0.06≤1.00≤1.00≤0.04≤0.043.50~4.5011.5`14.0
SCS6≤0.06≤1.00≤1.00≤0.04≤0.043.50~4.50~11.5~14.00.40~1.00
SCS10≤0.03≤1.50≤1.50≤0.04≤0.044.50~8.5021.0~26.02.50~4.00 N0.08~0.30③
SCS11≤0.08≤1.50≤1.00≤0.04≤0.044.00~7.0023.0~27.01.50~2.50
SCS12≤0.20≤2.00≤2.00≤0.04≤0.048.00~11.0018.0~21.0
SCS13≤0.08≤2.00≤2.00≤0.04≤0.048.00~11.0018.0~21.0
SCS13A≤0.08≤2.00≤1.50≤0.04≤0.048.00~11.0018.0~21.0
SCS14≤0.08≤2.00≤2.00≤0.04≤0.0410.0~14.017.0~20.02.00~3.00
SCS14A≤0.08≤1.50≤1.50≤0.04≤0.049.0~12.018.0~21.02.00~3.00
SCS15≤0.08≤2.00≤2.00≤0.04≤0.0410.0~14.017.0~20.01.75~2.751.00~2.50
SCS16≤0.03≤1.50≤2.00≤0.04≤0.0412.0～16.017.0～20.02.00~3.00
SCS16A≤0.03≤1.50≤1.50≤0.04≤0.049.00～13.017.0～21.02.00~3.00
SCS17≤0.20≤2.00≤2.00≤0.04≤0.0412.0～15.022.0～26.0
SCS18≤0.20≤2.00≤2.00≤0.04≤0.0419.0～22.023.0～27.0
SCS19≤0.03≤2.00≤2.00≤0.04≤0.048.00～12.017.0～21.0
SCS19A≤0.03≤2.00≤1.50≤0.04≤0.048.00～12.017.0～21.0
SCS 20≤0.03≤2.00≤2.00≤0.04≤0.0412.0～16.017.0～20.01.75~2.751.00~2.50
SCS 21≤0.08≤2.00≤2.00≤0.04≤0.049.0～12.0018.0~21.0
SCS22≤0.08≤2.00≤2.00≤0.04≤0.0410.0～14.017.0~21.02.00~3.00 Nb+Ta④
SCS23≤0.07≤2.00≤2.00≤0.04≤0.0427.5～30.519.0~22.02.00~3.003.00~4.00Nb+Ta④
SCS24≤0.07≤1.00≤1.00≤0.04≤0.043.00～5.0015.5~17.5 Nb+Ta0.15~0.45
①可加入1.00%以下的Ni。
�、谠试S含0.50%以下的Mo。
�、郾匾獣r可相應加入表中未列的合金元素。
④Nb+Ta總量的下限為含量的10倍，上限為1.35%。
