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.
Gases used in welding and cutting processes include: 1  shielding gases such as carbon dioxide, argon, helium, etc. 2  fuel gases such as acetylene, propane, butane, etc.  oxygen, used with fuel gases and also in small amounts in some shielding gas mixtures.