Buy high-quality forged steel ball B2,60mn, 45 # all in all dimensions free to send samples welcome inquiry: 13953120393 QQ mailbox: Feature 848687422qq.com forged steel balls and production processes: 1, material stability: Forged steel balls required raw material - round, all ordered from a large national steel mills, and may require special wear-resistant steel balls of different materials, for special processing. 2, the raw material is heated: We use energy-efficient induction bar heating furnace heating block ensures temperature uniformity and greatly reduce raw material consumption, uniform temperature ensures uniform hardness in the heat treatment process. 3, forging: The air hammer forging the raw materials to a certain variable, increasing the compression ratio, so that the organizational structure is more dense ball wear and improve toughness and hardness. 4. Heat treatment: self-developed by water quenching heat treatment production line and scientific process, so forging wear-ball from the surface to the core of higher hardness and high toughness at the same time, the rate of polar broken, in a variety of harsh environments wear and maintain the stability ball. Forged steel ball technical parameters: 45 # C: 0.42-0.50 Si: 0.17-0.37 Mn: 0.5-0.8 S / P: ≤0.035 Cr: ≤0.025 hardness (HRC): 50-55 crushing rate: <1% toughness: ≥12 60mnC: 0.55-0.62 Si: 0.17-0.37 Mn: 0.7-1.0 S / P: ≤0.04 Cr: <0.25 hardness (HRC): 58-62 crushing rate: <1% toughness: ≥12 B2 C: 0.72 -0.85 Si: 0.17-0.37 Mn: 0.7-1.0 S / P: ≤0.035 Cr: 0.4-0.6 hardness (HRC): 58-63 crushing rate: <1% toughness: ≥12