YG11 in one of the mold steel, concrete classes are tungsten carbide, without heat treatment, inside and outside uniform hardness. For volume production, suitable for production of stamping dies, such as stamping silicon steel, Q195, SPCC and other materials and the need for good wear resistance of the mold. Suitable for production of stamping dies, such as stamping silicon steel, Q195, SPCC and other materials and the need for good wear resistance of the mold. WC: 89%, CO: 11% YG11 average particle: 1.2, the particle density g/cm3 13.4-13.80 YG11 YG11 bending strength: ≈ 3400 YG11 Hardness: ≥ 88HRA