Zibo Dongsheng Casting and Forging Co., Ltd. is a professional steel ball manufacturer and exporter in China. Our main products are Forged Steel Grinding Balls and Alloyed Casting steel Balls. The products are exported to over 15 countries and regions around the world. Forged steel grinding ball Chemical elements: C: 0.52-0.65 Si: 0.15-0.37 Mn: 0.6-1.2 S: ≤0.04 P: ≤0.04 Cr: ≤0.25 Hardness: HRC 50-63 Size: DIA 20-150mm Packing: 1000kgs/bag or according to your requirement Casting steel ball: 1.High Chrome Cast Steel Balls: Chrome Content: 12-18%. The hardness and Chrome content can be changed as per customer&＃039;s request. size: 20—120mm 2.Low chrome cast balls Size: 20mm-120mm Hardness: HRC45-55; Chrome content: 1-3.5% We can offer excellent quality and competitive price, welcoming your enquiry and cooperation.