H13 steel is a C-Cr-Mo-Si-V steel, and its application in the world is extremely common.

Huge stacks of H13 tool steel in Dongguan China

H13 steel is a C-Cr-Mo-Si-V steel

H13 steel application in the world is extremely common. At the same time, many scholars in various countries have conducted extensive research on it and are exploring the improvement of chemical composition. Steel is widely used and has excellent characteristics, which 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 1550MPa, the sulfur content of the material is reduced from 0.005% to 0.003%, which will increase the impact toughness by about 13J. Obviously, 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.

Carbon: American AISI H13

UNS T20813, ASTM (latest version)H13 steel and FED QQ-T-570 H13 steel have 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 GB / T 1299 and YB / T 094 in China are (0.32 ~ 0.42)% and (0.32 ~ 0.45)%, which are the same as SKD61 and AISH13, respectively. In particular, the North American Die Casting Association NADCA 207-90, 207-97, and 207-2003 standards specify the carbon content of H13 steel as (0.37 ~ 0.42)%.

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Ms Sharon Wan

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