Differences between 09CuPCrNi-A steel and hardened wear plate
1. Difference between 09CuPCrNi-A steel and hardened wear plate in category
09CuPCrNi-A weathering steel refers to the composite high-alloy wear-resistant layer on the substrate of ordinary steel plates by the overlay welding method, combining the wear resistance of the wear-resistant layer and the bearing, deformation and weldability of the substrate. The hardness of the wear-resistant layer of 09CuPCrNi-A steel is generally between HRC52-64.
Hardened wear steel plate refers to the steel plate that is quenched and hardened during the rolling process or heat-treated and hardened on the low-alloy steel plate, also known as quenched and tempered steel plate. Hardness-like in HB350-500.
2. Difference between 09CuPCrNi-A steel and hardened wear plate in abrasion resistance
The wear-resistant layer of 09CuPCrNi-A weathering steel is a high-alloy component, and a large amount of high-hardness alloy carbides (around HV1600) are embedded in the matrix in the metallographic structure, and the main carbides play an anti-wear function. The actual micro hardness of the wear-resistant layer of 09CuPCrNi-A steel is much higher than the measured macro hardness. Its strengthening method is the same as that of cemented carbide.
The hardened wear steel plate is overall quenched and hardened. The martensite in the metallurgical structure improves the overall hardness, and the micro hardness and the macro hardness are basically the same.
3. Difference between 09CuPCrNi-A steel and hardened wear plate in their temperature resistance
The hardened wear steel plate gradually anneals and loses its hardness when used above 250 ℃, which greatly reduces the wear resistance. The welding process will also reduce the hardness near the weld;
The wear-resistant layer of 09CuPCrNi-A steel is a high alloy component, and it has the effect of secondary hardening at a certain temperature, and can generally work below 650 ℃.
4. Difference between 09CuPCrNi-A steel and hardened wear plate in their process performance
Hardened wear-resistant steel plates can be punched mechanically, but 09CuPCrNi-A weathering steel cannot be drilled mechanically.
