How To Clean Stainless Steel After Welding. The nitric acid used in these treatments will also leave the steel surface in the passive condition. This process involves the oxidation of an acidic electrolyte on a metal surface with the help of electricity.
Electropolishing will also remove heat discoloration and render the surface more corrosion resistant then passivation or pickling alone. This covers the surface with an iron-free chromium oxide layer and gives it the shine that. It will also brighten the surface.
The removal of heat tint from stainless steel fabrications using brush-on pastes or gels spray or immersion acid pickling or electrolytic methods will normally be satisfactory.
The nitric acid used in these treatments will also leave the steel surface in the passive condition. It will also brighten the surface. This process involves the oxidation of an acidic electrolyte on a metal surface with the help of electricity. The best way to clean stainless steel after welding is through a process called electropolishing.