Explanation

The gray wear resistance cast iron with phosphorus content increased to 0.30-0.80%. Phosphorus mainly exists in cast iron in the form of phosphorus eutectic, which is distributed in an intermittent network and forms a hard framework, making cast iron have good wear resistance. In order to avoid the adverse effect of phosphorus on toughness and further improve wear resistance or corrosion resistance, it is often necessary to add various alloy elements. Most alloy grey cast iron contains high phosphorus, which is mainly used to make machine tool bed, guide rail, cylinder sleeve, piston ring, etc.

Classification