Jennifer Bourn. This post is part of the Color Meaning Blog Series, detailing the meanings associated with colors such as red, orange, yellow, green, blue, purple, grey, black, white, brown, pink, turquoise, gold, silver, and beige.
Instructions. Know what metal you are welding. Welders have figured out that nitrogen, as well as hydrogen, works well with stainless steels. If your metal is stainless steel, then nitrogen welding gas is a good choice. Put on your protective gear. This includes gloves, a welding jacket and a welding mask.
In austenitic welding materials a determined amount of delta-ferrite is aimed to reduce the tendency of hot cracky. A material without delta-ferrite is bad for hot forming at increased temperatures. Nitrogen in the steel suppresses the formation of delta-ferrite.lpha-and delta-iron are both cubic body centered. In the microstructure of austenitic chromium-nickel and chromium-nickel-molybdenum-steels is occasionally a little amount of ferrite determineable.