Wear Resistant Steel Plate refers to a special plate product specially designed for use under large-area wear conditions. The commonly used wear-resistant steel plate is a plate product made of an alloy wear-resistant layer with a certain thickness of high hardness and excellent wear resistance on the surface of ordinary low-carbon steel or low-alloy steel with good toughness and plasticity by surfacing welding. In addition, there are cast wear-resistant steel plates and alloy quenched wear-resistant steel plates.

Performance description

1、The chemical composition of the alloy wear-resistant layer with excellent wear resistance has a carbon content of 4-5%, a chromium content of 25-30%, a volume fraction of Cr7C3 carbides in its metallographic structure of more than 50%, and a macroscopic hardness of HRC56~ 62. The hardness of chromium carbide is HV1400~1800. Since the carbides are distributed perpendicular to the wear direction, even compared with the cast alloy with the same composition and hardness, the wear resistance is more than doubled. The wear resistance comparison with several typical materials is as follows:

(1)with low carbon steel; 20～25:1 

(2)with as-cast high chromium cast iron; 1.5～2.5:1

2、The substrate of good impact resistance and wear-resistant composite steel plate is low carbon steel or low alloy. Tough materials such as stainless steel reflect the superiority of bimetal, the wear-resistant layer resists the wear of the abrasive medium, and the substrate bears the load of the medium, so it has good impact resistance. It can withstand the impact and wear of high-drop hoppers in material conveying systems.

3、The alloy wear-resistant layer with better heat resistance is recommended to be used under the working condition of ≤600°C. If vanadium, molybdenum and other alloys are added to the alloy wear-resistant layer, it can withstand high-temperature wear of ≤800°C. The recommended operating temperature is as follows: ordinary carbon steel substrates are recommended not to be used at temperatures higher than 380°C; low-alloy heat-resistant steel plates (15CrMo, 12Cr1MOV, etc.) are recommended to be used at temperatures not higher than 540°C; heat-resistant stainless steel substrates are recommended to be used at temperatures not higher than 800°C working condition.

4、Good corrosion resistance The alloy layer of the wear-resistant composite steel plate contains a high percentage of metallic chromium, so it has certain rust and corrosion resistance. It can prevent coal sticking when it is used in coal falling tubes and funnels and other occasions.

5、Complete varieties and specifications Wear-resistant steel plates have complete specifications and many varieties, and have become serialized commodities. The thickness of the wear-resistant alloy layer is 3-20mm. The thinnest thickness of the composite steel plate is 6mm, and the thickness is not limited. The standard wear-resistant steel plate can provide 1200 or 3800×12000mm, and can also be customized according to the drawing size according to the needs of users. Wear-resistant steel plates are now divided into three types: ordinary type, impact-resistant type and high-temperature type. When ordering high-temperature wear-resistant and impact-resistant composite steel plates, please explain.

6、Convenient processing performance The wear-resistant steel plate can be cut, bent or curled, welded and punched, and it can be processed into various parts that can be processed by ordinary steel plates. The cut wear-resistant steel plate can be tailored and welded into various engineering structural parts or parts.

7、Function and Features Can be welded, good wear resistance.