Carbon Steel Ball

Carbon steel ball is magnetic, it must be plated when it is out of surface,it can be plated with zinc,glod,nickle,chrome and so on.The frictional resistance is strong, the HRC is 50-55.The frictional resistance and hardness is worse than bearing steel ball(the HRC of GCR15 steel ball is 60-66):so the life is shorter. Detailed Product Description 1.material: AISI 1008 1018 2.element content:C:0.08%-0.20%,Si:0.03%,Mn:0.30%-0.7%,P: <=0.045%; S: <=0.050% 3.grade:G40, G60, G100, G200, G500, G1000, G2000 4.diameter:0.5mm-80mm 5.hardness:HRC 50-55 6.applied field:bicycle,chain wheel,crafwork,shelf,versatile ball,bags, small hardware STEELBALLGB308-89ISO32902002(E) GradeVdwsballdiavariationsphdeviationFromSphericalFromSurfaceRoughnessNoLargerThanum30.080.080.01250.130.130.02 10 0.25 0.250.025160.40.40.032200.50.50.04280.70.70.0540110.08601.51.50.101002.52.50.125200550.2