Our H13 STEEL -chapter 2
The application of h13 steel is basically the same as 9CRWMN mold steel, but because of H13 higher vanadium content, the medium temperature (600 degrees) performance is better than 4Cr5MoSiV steel. H13 steel is a representative steel number with a wide range of uses in hot work mold steel.
H13 die steel is used to manufacture forging dies, hot extrusion dies and precision forging dies with large impact loads; aluminum, copper and their alloy die-casting dies.
Quenching: 790 degrees + -15 degrees preheating, 1000 degrees (salt bath) or 1010 degrees (furnace controlled atmosphere) + -6 degrees heating, heat preservation for 5-15 minutes air cooling, 550 degrees + -6 degrees tempering; annealing, hot processing ;
H13 steel is a C-Cr-Mo-Si-V steel, and H13 application in the world is extremely common. At the same time, many scholars in various countries have conducted extensive research on h13 and are exploring the improvement of chemical composition. Steel is widely used and has excellent characteristics, h13 are mainly determined by the chemical composition of steel. Of course, the impurity elements in steel must be reduced. Some data show that when Rm is 1550 MPa, the sulfur content of the material is reduced from 0.005% to 0.003%,h13 will increase the impact toughness by about 13J. The NADCA 207-2003 standard stipulates that the sulfur content of the premium H13 steel is less than 0.005%, while the superior should be less than 0.003% S and 0.015% P. The composition of H13 steel is analyzed below.H13
Carbon: American AISI H13, UNS T20813, ASTM (latest version) H13 and FED QQ-T-570 H13 steel all have a carbon content of (0.32 ~ 0.45)%, which is the most carbon content range of all H13 steels. Wide. The carbon content of German X40CrMoV5-1 and 1.2344 is (0.37 ~ 0.43)%, and the carbon content range is narrow. German DIN17350 also has the carbon content of X38CrMoV5-1 (0.36 ~ 0.42)%. The carbon content of Japan SKD 61 is (0.32 ~ 0.42)%. The carbon contents of 4Cr5MoSiV1 and SM 4Cr5MoSiV1 in China’s GB / T 1299 and YB / T 094 are (0.32 ~ 0.42)% and (0.32 ~ 0.45)%, which are the same as SKD61 and AISI H13, respectively. In particular, the North American Die Casting Association NADCA 207-90, 207-97, and 207-2003 standards set the carbon content of H13 steel at (0.37 ~ 0.42)%.
