What is the composition of composite steel plate? What are the advantages?

The chemical composition of the wear-resistant layer of the alloy is 4-5% in carbon, 20-30% in chromium. The volume fraction of Cr7C3 carbide in the metallographic structure is more than 50%, the hardness is hrc58-65, and the hardness of chromium carbide is hv1400-1800. Compared with the cast alloy of the same composition and hardness, the wear-resistant property is more than doubled.

1. Good impact resistance:
The base plate of wear-resistant composite steel plate is made of low carbon steel, low alloy, stainless steel and other ductile materials, which embodies the advantages of bimetal. The wear-resistant layer resists the wear of wear medium. The base plate bears the load of medium, so it has good impact resistance, and can bear the impact and wear of high drop in material conveying system.

2. Good heat resistance:
Alloy wear-resistant layer is recommended to be used under the working condition of ≤ 600℃. If vanadium, molybdenum and other alloys are added to the alloy wear-resistant layer, it can withstand high temperature wear of ≤ 800℃. The recommended operating temperature is as follows:
(1) Common carbon steel base plate is recommended to be used under the condition of not higher than 380℃;
(2) The base plate of low alloy heat-resistant steel plate (15CrMo, 12Cr1MoV, etc.) is recommended to be used under 540℃; the base plate of heat-resistant stainless steel is recommended to be used under 800℃.

3. Good corrosion resistance
The alloy layer of wear-resistant composite steel plate contains high percentage of metal chromium, so it has certain rust and corrosion resistance. Used in coal chute and funnel.