Introduction DC53 DC53 hardness after heat treatment is higher than SKD11, high temperature (520-530 ℃) after tempering up to 62-63HRC hardness, in intensity over SKD11.
2, the tenacity is SKD11 twice. DC53 die steel toughness in the cold is more prominent, therefore, made ​​little use of DC53 cracks and crack, greatly improving the service life.
3, after line cutting residual stress, high temperature annealing reduces the residual stress. Therefore, the requirements of large-scale precision die and mold line of the crack after cutting and deformation to be curtailed.
4, cutting more than SKD11. DC53 cutting better than SKD11. Therefore, the use of DC53 increase die life and reducing manufacturing processes. Purpose: mold planted red / cold mold / cold-drawn mold / molding roll / punch / wire cutting uses a variety of fine blanking and stamping mold / plastic deformation of materials difficult to machine tools.
Practical features:
(1) is cutting, grinding was good. By cutting, abrasive are better than SKD11 was excellent, so the processing tool life longer processing time than the number of provinces.
(2) heat treatment on the merits than the SKD11 hardened high, so we can improve the hardness of the vacuum heat treatment, lack of defects.
(3) the advantages of on-line cutting through the high-temperature tempering reduces residual stress and the elimination of residual austenite, to prevent the wire cutting cracks, deformation of the problems.
(4) the advantages of surface hardening on the surface hardness of the surface hardening treatment than SKD11 high, it can improve mold performance.
(5) repair welding operations on the merits because, after preheating and heating temperature than SKD11 low, so relatively easy to repair welding operations. Features: Common cold die steel, high hardness, high toughness