Material Grade CK50,CK67,CK75, CK95,51CrV4,75Cr1 ,SK5, SAE1070,SAE1074,C67S ,C75S etc. Condition hardened and tempered, cold rolled annealed Hardness 18-55HRC Surface polish-blue,gery-blue,polished brightï¼?golden etc. Thickness 0.08-3 mm Width 3-1500 mm Tolerance thickness+/-0.01mm max,width +/-0.05mm max Tensile strength 540-1575N/mm2
