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UltraGlow® Gas Nitriding

Improve the corrosion and wear resistance in your steel parts with all-over gas nitriding coverage--even inside bores and holes!


The Gas Nitriding Process

UltraGlow® Gas Nitriding is a case-hardening process whereby nitrogen is diffused into the surface of a solid ferrous alloy by holding the metal at a suitable temperature in contact with a nitrogenous gas, usually ammonia.

Benefits of This Heat Treatment:

  • Extends part/tool life
  • Adds performance, fatigue strength and endurance
  • Enhances surface lubricity
  • Reduces erosion
  • Increases material flow in molds and dies
  • Improves corrosion resistance
  • No post-process machining
  • Improves wear resistance
  • Minimal growth/distortion
  • Precise and versatile
  • Phase controllable compound zone (or white layer)
  • For additional corrosion resistance, Advanced Heat Treat Corp's UltraOx® treatment can be combined with the gas nitriding process. Click here to learn more about ULTRAOX.

Common Materials for Gas Nitriding

Austenitic stainless steel (200, 304, 316, etc.); Martensitic stainless steel (410, 440, etc.); Cast materials (gray/ductile/nodular iron); Medium Carbon Steel (4140, 4142, 4340, etc.); Low Alloy/Low Carbon Steel (1018, 1020, etc.) & more. Talk to your AHT rep for a complete list.

AHT UltraGlow® Gas & Ion Nitriding Capabilities:

The working parameters of Advanced Heat Treat Corp.'s gas & ion nitriding equipment are very large:

  • 160" in diameter
  • 360" in length
  • 60,000 lbs. in weight

The heat treatment is offered at three AHT locations. Click the corresponding button below for a list of services & contact info. 


AMS Gas Nitriding Specifications 

AHT can currently certify to the AMS 2759/6, AMS 2759/10 and AMS 2759/12 specifications. Learn about our certifications, specifications and focus on quality here

Advanced Heat Treat Corp.'s UltraGlow® Gas Nitriding is your answer to an economical way of heat treating rolls, shafts, extruder screws & much more. Learn more about Gas Nitriding with these whitepapers, case studies & more.