Welding Stainless Steel Discoloration. August 24 2019 Author. The three most important variables that determine stainless steel weld discolorationoxidation are amperage travel speed and quality of shielding gas coverage.
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Click to read more about these methods. Stainless Steel 316L Discoloration. Bear in mind that the susceptibility to corrosion and discoloration will increase with the material surface roughness. Heat tint temper colours on stainless steel surfaces.