High-Temperature Alloy Steel for Lead Mold Casting

The adaptability of C5 (ASTM A217 C5) heat-resistant alloy steel under extremely high-temperature working conditions is particularly outstanding, and it can easily cope with various harsh usage environments. Under continuous high-temperature conditions with temperatures as high as 649℃, such as the radiant section furnace tubes of cracking furnaces, C5, with its molybdenum-enhanced creep resistance, can withstand high temperatures and medium pressures for a long time. After 10,000 hours of high-temperature operation, the creep deformation is controlled within 0.2%, which is far lower than the 0.5% limit of ordinary heat-resistant steels. Effectively prevent the expansion or rupture of the furnace tube diameter caused by creep. Under the alternating thermal fatigue conditions of cold and hot, such as in the tube bundles of high-temperature heat exchangers, the 9Cr-1Mo composition combination of C5 can reduce the internal stress caused by temperature fluctuations. After 1000 cold and ho…