MIG and TIG welding method due mainly to pure Ar as a protective gas, so the outside air, oxygen, nitrogen, hydrogen, and other harmful gases are difficult to enter the molten bath; argon gas or impurities does not produce harmful weld properties; the argon Welding Wire and molten pool the alloy oxidation few etc. welded joints have a very excellent physical and chemical properties. But it may be detrimental to the welding efficiency and weld penetration.
So to the constituent of the wire as much as possible close to the base material ingredient as the principle of the choice of the wire is suitable.
Stainless steel performance largely depends on the ingredients.
Ingredient of stainless steel submerged arc welding wire design considering the loss due to Brazing Alloy burning. The choice of the series of wire should be subject to the welding base metal composition, selection of the same alloy system; wire ingredients (equal to or slightly higher than) as close as possible to the base metal composition. Different stainless alloy system performance