DC53 hardness after heat treatment is higher than SKD11, high temperature (520-530 ℃) after tempering high hardness up to 62-63HRC, in strength than SKD11. 2, the tenacity of double SKD11. DC53 toughness in cold die more prominent, therefore, with the DC53 made little cracks and crack, greatly improving the life. 3, residual stress after wire cutting, by tempering reduce residual stresses. Therefore, the requirements of large molds and precision of mold line cutting after crack and deformation is suppressed. 4, machinability than SKD11. DC53 cutting better than SKD11. Therefore, DC53 can increase tool life and reduce the manufacturing processes. Usage: punching plant mold / cold mold / cold-drawn mold / molding rolls / punch / wire cutting, precision blanking and stamping dies for various purposes / difficult materials plastic deformation appliances. Practical features: (1) the machinability is good abrasive. Machinability, is abrasive than SKD11 are excellent, so a longer working life of the tool, the number of working hours than the province. (2) on the advantages of the heat treatment can be higher than in hardened SKD11, it is possible to improve the deficiencies vacuum heat treatment and hardness defect. Advantages (3) line cutting on it by tempering reduce residual stresses and eliminate residual austenite can prevent wire cutting cracks, deformation of distress. (4) on the surface of hardened advantage of the surface hardening treated surface hardness than SKD11 high, it can improve mold performance. (5) the advantages of the welding work on repair due to the warm-up and post-heat temperature lower than SKD11, so relatively easy to repair welding jobs. Features: Common cold die steel, high hardness, high toughness