By adding elements such as tungsten, molybdenum and vanadium, the hardness can reach 90-95HSD, and the service life is 2-3 times that of traditional Cr5 rollers. It features high hardness, high wear resistance and good thermal stability. High-speed steel contains a large amount of alloying elements such as tungsten, molybdenum, chromium and vanadium, forming complex carbides, which enables it to maintain high hardness and strength at high temperatures and withstand higher rolling speeds and rolling forces.
2. Scope of application: Mainly used for rolling high-precision and high-performance cold-rolled products (such as high-strength automotive steel), such as ultra-thin strip steel, precision alloy strip steel, etc. It is particularly suitable for high-speed rolling and the rolling of materials that are difficult to deform.