Stainless Q&A

Q: In Certified Welding Inspector training, I’m often asked what weathering steel is and whether it is a type of stainless steel. Should it be welded with typical stainless steel filler metals, such as ER308?

A: Weathering steel is a low-alloy steel that produces a surface oxide that will not flake off. It is welded with filler metals that provide matching corrosion resistance and color.

What are Weathering Steels?

Stainless steels are ..