Ball mill steel ball is the grinding material medium of ball mill equipment, which plays an important role in the development of ball mill steel ball through the collision friction between ball mill steel ball and material. Important basic parts, especially precision industrial steel ball, play an important role in the development of national and ball mill steel ball. Widely used in cement plants, power plants, etc. High and low chromium multi-element alloy steel ball, high and low chromium multi-element alloy casting and forging. Due to the addition of Mo, the steel bar has good corrosion resistance, atmospheric corrosion resistance and high temperature strength, which can be used under harsh and cool conditions.