... +Rough Turned+Q/T. Or Only black Hot Forged Steel Round Bar (C45/SAE8620/16MnCr5)Grade:c45Size:300-1200MM ;Grade: ... the customer's requirment;Other specification:Carbon Steel:C45, CK35,C60, C22Alloy Steel: 42CrMo4, 34CrNiMo6,39CrNiMo3,18CrNiMo5,17CrNiMo6,41Cr4, ... ,S355J2,41Cr4,51CrV4,41CrAlMo7,40NiCrMo7,40NiCrMo3;40CrMoV4-6Tool Steel: H13,1.2714 Hot Forged Steel Round Bar (C45/SAE8620/16MnCr5)