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A multipurpose gas for the metals and materials processing industry

Nitrogen is used across numerous applications to help improve quality as well as increase efficiency and yield in metals and materials processing. Its inert nature allows it to be used to protect most molten and heated metals during processing.

We offer compressed nitrogen gas and liquid argon in a variety of purities and concentrations.

Our experienced applications teams across the globe can use their industry and application knowledge to provide you with a compressed or liquid nitrogen supply and technology solution to meet your unique needs.

​Nitrogen for Metals and Materials Processing

Nitrogen can be used in a wide range of applications across metals and materials component manufacturing:

  • Inerting atmosphere
  • Powder atomization
  • Gouging
  • Thermal and plasma spraying
  • Heat treating
    • Brazing
    • Annealing
    • Carburizing/Nitriding
    • Neutral Hardening
    • Quenching
  • Sintering
  • 3D printing
  • Shielding gas
  • Cooling
  • Cryo-treating

to provide numerous benefits, such as:

  • Reducing or eliminating surface oxidation
  • Improving product quality
  • Increasing efficiency and yields
  • Decreasing scrap

Ask the Expert

Tom Philips

Applications Engineer

“What nitrogen purity do I need for my heat treatment process?”
That depends on your process. Nitrogen based atmospheres for metals processing have been successfully proven over many years, and due to the enormous range of requirements in furnaces for various materials and surface needs, the use of gas mixtures is now an industry standard. Different products can tolerate differing concentrations of oxidizing components in the furnace atmosphere due to additional reducing or reactive components in the blend. For this reason, the use of on-site generated nitrogen with residual amounts of oxygen can be tolerated. By understanding your oxygen tolerance levels we can help you reduce your costs.  For most materials, although free oxygen is not tolerable, some oxidizing impurities may be permitted. In these cases, the on-site production of high purity nitrogen for the heat treatment of very sensitive materials may be commercially viable.

Supply Options

Air Products can help you determine the most economical supply option for your particular application and geographic location. Industrial gases are typically provided in gaseous and liquid form through a variety of supply systems.



CryoEase® マイクロバルク ソリューション

大規模な運用向けの便利で費用対効果の高いソリューション。 CryoEase® タンクはさまざまなサイズで利用できます。 CryoEase® サービスは、ボンベの取り扱い、棚卸し、注文を行う必要がなくなるため、ガス供給を簡素化します。




窒素発生器の供給オプションには、極低温、吸着、および膜技術が含まれます。 これらの製品により、現場での窒素ガス生成が最適な供給モードである一般的な流量、圧力、および純度の要件をすべて満たすことができます。

Industrial Gas Audits and Leak Detection Services

Audits and leak detection services can be comprehensive assessments of the entire gas supply system, or specific to gas or process equipment that use the gas.
Additional services

Get in touch with our technical experts.

Let us help you optimize nitrogen usage to improve quality and increase efficiency and yield.

Contact Us

SDS Library

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SDS Library