Material: SAE1060, SAE1065, SAE1070, 60#, 65#, 65Mn, 70#, 72A, 72B, 80#, 82B Diameter: ... 50mm~7.00mm Standard: GB18983-2003 Material: SAE1060, SAE1065, SAE1070, 60#, 65#, 65Mn, 70#, 72A, 72B, 80#, 82BDiameter: 0. ... StandardCarbon%Silicon%Manganese%Phosphorus%Sulphur %Chromium%Nickel%Cuprum%60#0.60-0.610.18-0.220.52-0.590.0120 ... #0.650.210.560.0130.0080.050.040.1465Mn0.60-0.700.10-0.250.70-1.000.0300 ...