Stainless Q&A

Q: What effect does shielding gas composition have on stainless steel weld metal composition, and can 316L be gas metal arc welded with C-25 (75% Ar/25% CO₂) shielding gas?

A: ARC Specialties, Houston, Tex., performed some preliminary research on this topic recently, enabling a good opportunity to present results.

While specifications such as AWS A5.18, Specification for Carbon Steel Electrodes and Rods for Gas Shielded Arc Welding, includ..