What are the characteristics of welding wear-resistant steel plates?

Welding wear-resistant steel plate has the characteristics of high wear resistance, good impact resistance, excellent processing performance, and high cost-effectiveness, and is the core material for key equipment protection in the heavy industry field.

Ultra high wear resistance

The carbon content of the weld overlay reaches 4-6%, and the chromium content is as high as 25-30%, forming a large amount of Cr ₇ C Ⅲ carbides with a volume fraction of over 45%. The microhardness can reach HV1400-2000, and the macroscopic hardness can reach HRC58-65. The wear resistance is more than 20 times that of ordinary low-carbon steel, 10 times that of high manganese steel or stainless steel, and comparable to ceramics.

Good impact resistance and toughness

Adopting a "bimetallic" structural design: the low carbon steel or low alloy steel substrate provides toughness and load-bearing capacity, while the high hardness alloy wear-resistant layer resists wear. This structure enables it to withstand high drop impacts in material transportation and is suitable for heavy-duty conditions such as mining and metallurgy.

Excellent heat resistance

The ordinary type can operate stably under working conditions of ≤ 600 ℃; If vanadium, molybdenum and other elements are added to the alloy layer, high-temperature products can be made with a temperature resistance of ≤ 800 ℃, suitable for high-temperature wear environments such as boilers and hot rolling rolls.

Good corrosion resistance and anti adhesion

The alloy layer is rich in chromium element and has certain oxidation and corrosion resistance, which can be used in humid or weakly corrosive environments. At the same time, the surface is smooth and dense, which can effectively prevent the adhesion of materials such as coal and ash, and improve the conveying efficiency.

Excellent processing and connection performance

It can be processed by cutting, bending, rounding, punching, welding, etc. like ordinary steel plates, and supports various installation methods such as bolt connection, plug welding, and splicing. It can be processed into wear-resistant pipes, elbows, and irregular components, suitable for complex equipment structures.

High cost-effectiveness and long lifespan

Although the procurement cost is higher than ordinary steel plates, its service life can be extended by more than 15 times, significantly reducing maintenance frequency and downtime losses. Compared to high chromium cast iron parts, it has lower cost and is less prone to fracture, with significant comprehensive benefits.

Diversified product types

Divided into three types based on usage conditions: ordinary type, impact resistant type, and high-temperature type, to meet the needs of different scenarios. In 2024, a patented product with a lock tongue and spring structure for quick installation (CN220374045U) was also introduced to improve on-site assembly efficiency.