Dia30-200mm Forged Steel Round Bar Grinding Steel Rod for Rod Mill Sheng Ye grinding media includes forged grinding balls (forged steel ball, hot rolled steel ball and casting grinding ball), grinding steel rod. casting grinding ball has strong wear resistance, wear resistance and impact resistance, and damage rate With the characteristics of low and no deformation, supplemented by advanced manufacturing equipment and scientific manufacturing technology, the quality is most stable and exported to more than 30 such as the United States, Canada, Peru, Chile, Mexico, Indonesia, the Philippines, Australia, the Middle East, Zambia, Zimbabwe, etc. country. Product Process Raw material: high quality round steel Forming: Roll to roll rolling Quenching: Quenchant Tempering: Continuous tempering furnace Technical Parameters Hardness: Hrc 55-65 Impact toughness: ≥ 12 AK.J/c m^2 Drop times: ≥ 20000 times Density: 7.9g/cm3 Working temperature: Within 80 Packing & D…