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Liquid nitrogen cryogenic tank and vaporizers
Metals and Materials Processing


Expert solutions to help you succeed

Inerting atmospheres in metals and materials processing manufacture refers to non-reactive gases or gas mixtures, that minimize undesirable reactions with oxygen during the process and allow non-oxidative reactions to occur.

Typical inert gases are nitrogen, argon and helium, although for processes involving reactive metals like titanium, aluminum or magnesium, only argon or helium can be used. Inert gases also provide an important safety benefit for flammable atmospheres by purging oxygen from the furnace at the beginning of the process and eliminating opportunities for explosion.

​Inerting Expertise and Solutions

Applying innovation and our expertise to solve our customers’ problems is our core strength

Full range of gas supply options and technical services

Full range of nitrogen, argon, and helium supply options and technical services for small and large inerting processes

Optimized gas use and improved product quality

Our applications engineers can work with you to understand your inerting process and recommend improvements

Product supply for small and large operations

To determine if liquid or on-site generation suits your needs, we consider your usage pattern, flowrate, pressure, and purity


Ask the Expert

Don Bowe
Don Bowe

Applications Engineer

Which nitrogen supply makes sense—on-site generation or liquid delivery?

If your operation uses nitrogen, you may wonder when on-site generation makes sense instead of liquid delivery. Here’s some information to help you understand if on-site nitrogen generation may be the supply mode for you. The appropriateness of on-site gas generation depends on many factors—nitrogen flow and purity are the most important ones. Flows with a steady or sufficient baseline rate can be great fits for on-sites. Periodic or erratic flow patterns can also be appropriate if there is a suitable baseline flow or the volumes, pressure and purity are sufficient to allow gas storage that covers peak flows. Also, the lower the purity requirement, the greater the fit (although high purity is okay at higher volumes). Other factors you should consider include local power cost and the pressure that’s required. There are no firm rules defining when you should switch from delivery to an on-site system. However, with our extensive experience in on-site technologies and gas delivery, we can help you determine your optimal supply mode.