O1/1.2510 cold work mould steel EAF or ESR material,black ... =0.85~0.95,Si=0.20~0.40,Mn=1.00~1.30,Cr=0.40~0.60,W=0.40~0 ... )Comparable steel:O1(USA AISIS),9CrWMn(China),SKS3(Japan JIS),1.2510(Germany,DIN),90MnWCrV5(France,NF)3)Delivery condition: Hot ...