0Cr18Ni10Ti (0Cr18Ni11Nb): Anti-within a temperature range of 400 ~ 900 ℃ high temperature corrosion oxidation 718H, can be used for operating temperatures below 850 ℃ fittings 0Cr23Ni13:. Antioxidant temperature until 980 ℃, used to fire the burner tubes, turbine blades, furnace body, methane conversion devices, high-temperature separation device 0Cr25Ni20:.. anti-oxidation temperature up to 1035 ℃, for furnace parts; operating temperature below 950 ℃ gas transmission system components 0Cr17Ni12Mo2 (0Cr19Ni13Mo2): Antioxidant temperature not lower than 870 ℃ work temperature of 600 ~ 750 ℃ ??chemical, oil refining heat exchanger tube furnace tube. 0Cr17Ni7Al:. Working temperature below 550 ℃ high temperature bearing member in thermal shock conditions of service of hot die forging hundreds or thousands of times 718H prices, many small-groove surface cracks appear, the shape of the network radial, parallel shape. These cracks are generally only a few millimeters deep, does not extend to depth. Such as forging die during service, contact the hot-groove surface rough, its surface temperature to rise rapidly heated 4007000C, while the inner layer is still at a relatively low temperature. But subject to the heat expansion of the surface of the inner constraints, resulting in compressive stress in the surface plate 718H, forging after demolding, the mold surface due to a coolant and a lubricant spray 718H material, so that the surface has dropped to 150-200 ℃ and contraction, When the inner surface of the contraction also limited, they produce back to the stress, so-groove in the surface layer of metal to produce tensile stress, because the role of alternating compressive stress is caused by thermal fatigue of the underlying causes. Plus the high temperature oxidation, friction coolants and lubricants as well as deformation of the metal electrochemical corrosion, more accelerated thermal fatigue process. Thus, thermal fatigue process is extremely complex physical and chemical processes. 718H steel _ Maoming 718H_ AsiaVest steel mold provided by the Dongguan City An Yongwei steel mold shop. Dongguan City An Yongwei mold steel shop (www.dgyongwei.com) strong, credible, in Dongguan, Guangdong special steel industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement AsiaVest innovative ideas will lead you hand into the mold steel and brilliant for a better future!