... Normalized+Rough Turned+Q/T. Or Only black Forged steel round bar S20CSpecification:S20CSimilar grade:SAE1020,C20Size:300mm-1200mmDelivery condition; ... the customer's requirment;Other specification:Carbon Steel:C45, CK35,C60, C22Alloy Steel: 42CrMo4, 34CrNiMo6,39CrNiMo3,18CrNiMo5,17CrNiMo6,41Cr4 ... ,41Cr4,51CrV4,41CrAlMo7,40NiCrMo7,40NiCrMo3;40CrMoV4-6Tool Steel: H13,1.2714 Forged steel round bar S20C