Duplex Welding: Processes, Parameters, and Equipment Guide
Welding duplex stainless steel comes down to one thing: heat control. Duplex gets its corrosion resistance from a 50/50 ferrite/austenite balance, and welding heat can throw that balance off fast. Too much heat triggers sigma phase and embrittlement. Too little, and you’re left with excess ferrite and a weld that won’t hold up in service. […]