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Advanced Heat Treat Corp.'s UltraOx® treatment improves corrosion resistance properties. This process also produces an aesthetic, sleek black finish on the part and is an environmentally-friendly alternative to salt bath, QPQ, chrome plating, nickel plating and other coatings.


UltraOx Logo 2020What is UltraOx®

UltraOx® is Advanced Heat Treat Corp.'s heat treat process that provides an extra layer of corrosion and wear protection with a sleek black finish. It has been widely used to replace chrome plating, nickel plating, QPQ (quench-polish-quench) and melonite/salt bath.

Benefits of UltraOx®

  • Improves corrosion resistance and abrasion properties in automotive, agriculture, construction, firearms and many other applications
  • Reduces adhesive wear & increases fatigue strength
  • Environmentally-friendly alternative to chromium and nickel plating, melonite, qpq/salt bath nitriding, as well as powder coating
  • The UltraOx process can be customized to achieve both the metallurgical and aesthetic results you desire
  • UltraOx® is NOT A COATING, so there is no surface pitting, flaking or hydrogen embrittlement
  • Choose from multiple black finishes
  • Easily surpasses salt spray test of 240 hours per ASTM B117
  • Achieves a minimum surface hardness of 60+ HRC (or equivalent)
  • 100% part coverage
  • Produces thick compound zone (white layer) - up to 0.0015"
  • No salt residue, so parts are ready to assemble once they are back in your hands

Learn more about ultraOx

UltraOx® Size Capabilities:

Advanced Heat Treat Corp. can UltraOx® parts up to 25 feet tall and 5 feet wide. Sizes vary by location. Contact an AHT representative for additional details.


UltraOx® is offered at the following locations:


This video was made for firearms, but UltraOx is also commonly used in agriculture, construction, tooling and more.

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