Research on Welding and Heat Treatment Process of 10Cr9Mo1VNbN Steel Pipe
10Cr9Mo1VNbN steel is a high-quality raw material for manufacturing boiler tubes.However,it has poor weldability and is very sensitive to heat treatment temperature.Furthermore,it has a high propensity to cold crack,rendering it susceptible to the detection of unqualified mechanical properties such as impact toughness and hardness in the weld zone and heat-affected zone following welding.A comprehensive study was conducted on the welding process of 10Cr9Mo1VNbN.The welding process and heat treatment parameters for steel pipe were optimized through welding tests and welding process evaluations.This resulted in an improvement in the welding quality of 10Cr9Mo1VNbN steel pipe,which can provide a welding process reference for similar material products.
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