YG20 tungsten steel Overview: YG20 die steel is a specific category belong tungsten carbide, without heat treatment, inside and outside the uniform hardness. For volume production, suitable for production of stamping dies, such as stamping watch parts, musical instruments, springs, etc.; punching battery shell mold toothpaste and so on. Chemical composition: WC: 80% CO: 20% average particle: 1.8 Density g/cm3 :13.4-13 .80 bending strength: ≈ 3100 Hardness :85-87HRA Performance and use: silicon steel, upper and lower punch, suitable for production of stamping dies, watch parts such as stamping, musical instruments, springs, etc.; punching battery shell mold toothpaste and so on.