Nitrogen is a non-flammable gas which does not support combustion. It is colourless, odourless and non-toxic; it is almost a totally inert gas. Nitrogen is produced with a food grade classification.
Nitrogen is commonly used as a shielding or assist gas for plasma cutting aluminium and stainless steel, as well as an assist gas for laser cutting.
Most common uses:
Purging vessels and pipelines
Blanketing and purging to displace air or other gases