Materials
Common problems when welding stainless steel
Quick answer
Common stainless steel welding problems: sugaring (back-side oxidation), distortion from retained heat, and carbon-steel contamination that rusts later. Fix with purge, heat control and dedicated consumables.
Problem → cause → fix
| Symptom | Cause | Fix |
|---|---|---|
| Sugaring | no back purge | argon purge or flux paste |
| Warpage | slow travel, high heat | less amps, faster, clamp |
| Rust at weld | wrong filler/contamination | match grade, clean tools |