Wear resistant steel plates are metallurgical bonding. The high hardness self-shielding alloy welding wire is welded evenly on the substrate by special equipment and automatic welding technology. The composite layer is one to two or even multi-layers. The uniform transverse cracks appear in the composite process because of the different alloy shrinkage ratio. This is the remarkable characteristic of wear-resistant steel plate.

The wear-resistant layer of the alloy mainly consists of chromium alloy, at the same time, manganese, molybdenum, niobium, nickel and other alloy elements are added. The carbide in the microstructure is fibrous and the fiber direction is perpendicular to the surface. The microhardness of the carbide can reach more than HV1700-2000, and the surface hardness can reach HRC58-62. The alloy carbide has strong stability at high temperature, maintains high hardness, and has good oxidation resistance. It can be used completely and normally within 500 ~C.