Welding Process of 12Cr1MoVG High Pressure Boiler Pipe
12Cr1MoVG belongs to pearlitic low alloy heat-resistant steel, which has high Cr content and high thermal strength and fatigue strength at 500~550 ℃. 1、 Welding method During the welding of alloy pipes of high-pressure boiler, the quality of the backing weld is required to be high, which requires not only the weld penetration and smooth…
