●化學(xué)成份:
鎳+鈷 Ni+Co:39.0~41.0
鉛 Pb:≤0.005
磷 P:≤0.005
錳 Mn:1.0~2.0
硅 Si :≤0.10
銻 Sb :≤0.002
硫 S :≤0.02
砷 As :≤0.010
碳 C:≤0.10
鉍 Bi:≤0.002
鎂 Mg:≤0.05
注:≤0.9(雜質(zhì))