Structural features of wear-resistant steel plate:

The wear-resistant steel plate is composed of low-carbon steel plate and alloy wear-resistant layer, which is generally 1/3~1/2 of the total thickness. During operation, the matrix provides comprehensive properties such as strength, toughness and plasticity against external forces, and the alloy wear-resistant layer provides wear-resistant properties that meet the requirements of specified working conditions.

The alloy wear-resistant layer of wear-resistant steel plate is metallurgically bonded with the substrate. High hardness self-protection alloy welding wire is uniformly welded on the base plate through special equipment and automatic welding process. The number of composite layers ranges from one to two or even multiple layers. Due to different alloy shrinkage ratios, uniform transverse cracks occur during the composite process, which is a significant feature of wear-resistant steel plates.

The alloy wear-resistant layer is mainly composed of chromium alloy, and manganese, molybdenum, niobium, nickel and other alloy components are also added. The carbide in the metallographic structure is distributed in the form of fibers, and the fiber direction is perpendicular to the surface. The micro hardness of carbide can reach HV1700-2000 or above, and the surface hardness can reach HRC58-62. Alloy carbide has strong stability at high temperature, maintains high hardness, and has good oxidation resistance. It can be used normally within 500 ℃.

The wear resistant layer is characterized by narrow (2.5-3.5mm), wide (8-12mm), curve (S, W), etc; It is mainly chromium alloy, and other alloy components such as manganese, molybdenum, niobium, nickel and boron are also added. Carbides in the metallographic structure are distributed as fibers, and the fiber direction is perpendicular to the surface. Carbide content is 40-60%, the microhardness can reach HV1700 or above, and the surface hardness can reach HRC58-62.

Wear resistant steel plates are mainly divided into three types: universal type, impact resistant type and high temperature resistant type; The total thickness of wear-resistant steel plate can reach 5.5 (2.5+3) mm at least and 30 (15+15) mm at most; The wear-resistant steel plate can be rolled into wear-resistant pipes with a minimum diameter of DN200, and can be processed into wear-resistant elbows, wear-resistant tees, and wear-resistant reducers.

Scope of application:

Wear resistant steel plate has high wear resistance and good impact performance. It can be cut, bent and welded. It can be connected with other structures by welding, plug welding and bolt connection. It is time-saving and convenient in the maintenance process. It is widely used in metallurgy, coal, cement, power, glass, mining, building materials, bricks and tiles and other industries. Compared with other materials, it has a high cost performance, It has been favored by more and more industries and manufacturers.