Basic introduction
1. The hardness of DC53 after heat treatment is higher than SKD11. After high temperature (520-530℃) tempering, it can reach 62-63HRC high hardness, and     it exceeds SKD11 in strength.
2. The machinability exceeds SKD11. The machinability of DC53 is better than SKD11. Therefore, the use of DC53 can increase the life of the mold and reduce       the processing steps. Application: blanking mold/cold forming mold/cold drawing mold/forming roller/punch/precision blanking of wire cutting and various         stamping molds/plastic deformation tools for difficult-to-process materials.

Characteristics
1. Heat treatment hardness is higher than SKD11
    After high temperature tempering, it can reach 62-63HRC high hardness. In terms of strength and wear resistance, DC53 exceeds SKD11.
2. Toughness is twice that of SKD11
    DC53's toughness is more prominent among cold working die steels. Tools made of DC53 rarely crack and crack, which greatly improves the service life.
3. Residual stress after wire cutting is small
    High temperature tempering reduces residual stress, and cracks and deformation after wire cutting are suppressed.
4. Cutting and grinding properties exceed SKD11
    DC53's cutting and grinding properties are better than SKD11. Using DC53 can increase the life of tools and molds and reduce processing procedures.

Heat Treatment
DC53 is a new type of cold working die steel that improves SKD11. Its technical specifications are contained in Japanese Industrial Standard (JIS) G4404. It overcomes the weakness of SKD11 in terms of insufficient hardness and toughness after high temperature tempering, and will completely replace SKD11 in the field of general and precision molds.

Nitriding treatment
After nitriding treatment, the surface of the workpiece obtains a dense hardened layer structure, which significantly improves the wear resistance and corrosion resistance of the workpiece. The surface hardness after gas nitriding treatment at 525℃ is about 1250HV, and the surface hardness after soft nitriding treatment at 570℃ is about 950HV.