1.Material:steel
2.Place of Origin: Jiangsu, China (Mainland)
3.High hardness: The surface hardness can be 57- 67HRC: the volumetric hardness can be 56-64HRC, and the distribution of hardness gradient is even.
4.Low breakage rate: The peel resistance and breakage resistance are more than 10times than the peel resistance and breakage resistance of traditional steel balls. When the ball impacts more than 10000times, the actual breakage rate is less than 1% nearly no breakage.
5.High impact toughness
6.Good wear resistance
7.Dia:20mm-125mm
8.Appearance: Roundness, No crack and scars on the surface
9.Metallurgical Structure: microstructure is uniform from edge to center