How To Welding Stainless. 308L is also an acceptable choice. When butt backing in order to prevent the back of the bottom weld pass from being oxidized the back also needs to be protected by gas.
Just make sure you use the right gas mixture wire and tweak the voltage little higher than you would normally use for regular steel. How To TIG Weld Stainless Steel. In fact for some it is the only way.
Choose the correct electrode for the workpiece again 316 308 or 312 grade are typical.
Just make sure you use the right gas mixture wire and tweak the voltage little higher than you would normally use for regular steel. Changes that take place the principal objective in welding stainless steels is to provide a sound joint with qualities equal to or better than those of the base metal allowing for any metallurgical changes that take place in the base metal adjacent to the weld and any differences in the weld filler metal. According to experienced welders the best way to weld stainless steel is with a MIG welder and the tri-mix shielding gas. When butt backing in order to prevent the back of the bottom weld pass from being oxidized the back also needs to be protected by gas.