White aluminum oxide # 36 # 30 # 24 for mold steel sandblasting
Mold steel is usually alloy steel containing multiple elements. It always goes with high-speed steel or carbon steel containing chromium, nickel, manganese, and molybdenum. Users have to choose the proper blasting media for blasting those steels. White aluminum oxide coarse grits such as # 36 mesh # 30 mesh # 24 mesh can efficiently grind and surface treat mold steel.