2520化学成份 C≤0.08,Si≤1.00,Mn≤2.00,P≤0.035,S≤0.030,Ni≤19.00-22.00,Cr≤24.00-26.00
因为有25%Cr,20%Ni,所以叫2520,也叫310S.
相当于国内的0Cr25Ni20