Helium is used for many purposes that require some of its unique properties, such as its low boiling point, low density, low solubility, high thermal conductivity, or inertness. Of the ***8 world helium total production of about *2 million kg (**3 million standard cubic meters) helium per year, the largest use (about *2% of the total in ***8) is in cryogenic applications, most of which involves cooling the superconducting magnets in medical MRI scanners. Other major uses (totalling to about *8% of use in ***6) were pressurizing and purging systems, maintenance of controlled atmospheres, and welding. Other uses by category were relatively minor fractions.

Controlled atmospheres

Helium gas arc welding

helium leak detection

helium flight gas

helium diving gas