... HRB500 and so onSpecification: 10-40mm ProcessingProductsSpecificationGradeStandardHotrolledsteelRound barDia 12mm to 300mmSS400,Fe360,C22-C80,41Cr4,SAE5140,42CrMo4,SAE4140,SUP9 ... /T11263-1998,ASTM and BSForged steelRound barDia 200mm to 1000mmC22-C80,C22-C80,41Cr4,SAE5140,42CrMo4,SAE4140 ... ,20CrNiMo,2CR13,4Cr13GB, DIN, JIS, ASTMSteel billetBillet100*100mm,120*120mm,130*130mm,150*150mmSS400,Q235,C20,C45 ...