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The TS USA facility in Springfield, OH provides Liquid Nitriding treatments that meet the exacting process & quality control standards of the aerospace industry.

To view our TS 16949 certificate, please click here.


HEF Group acquires Abrisa Technologies

December, 2020

HEF Group acquired Abrisa Technologies, adding Optical PVD coatings and Technical Glass Solutions capabilities to its portfolio. Abrisa has approximately 150 employees and operates two facilities (one for coatings, one for glass fabrication) – 125,000 sq. ft. – in the Los Angeles metropolitan area.

Abrisa Technologies’ precision glass optics are found in a wide variety of products, from entertainment lighting to biomedical optics; cockpit display panel solutions to silicon wafer fabrication; window heater solutions to sensors and imaging component optics. Abrisa’s coatings for industrial, commercial, and optoelectronic applications, as well as integrated glass fabrication capabilities can be customized for application-specific needs, from Anti-Reflective and Hot Mirror Coatings to Index-Matched Indium Tin Oxide (IMITO) Coatings to Dichroic Coatings; and CNC Machining to Chemical and Heat Strengthening of glass. Visit: abrisatechnologies.com.

HEF Group customers now have access to an expanded range of combined capabilities, coatings, and glass fabrication solutions. Abrisa Technologies’ customers will also benefit from HEF’s extensive materials engineering know-how, wide range of protective coating solutions and commitment to investment in manufacturing technology and development. These factors will enable Abrisa Technologies to provide more innovative solutions and the capacity to support the growing, changing needs of its customers.


HEF Group expands its footprint in South-West Michigan

June 1, 2018

  • Tech Nickel Inc. – located in Benton Harbor, MI – about 2-hours from Chicago, IL – a long-standing provider of HEF’s trademarked Liquid Nitriding treatments; electroless nickel platings, hard chrome and nickel-chrome platings, is now part of the HEF Group as a fully-owned subsidiary. In addition, Tech Nickel has also developed Tech-Kote - a thermo-chemical treatment for ferrous metals which improves resistance to weld spatter.
  • The Tech Nickel facility is ISO 9001:2008 certified and provides electroless nickel to meet AMS 2404, ASTM B733 and Mil-C-26074 specifications. Hard Chrome platings meet AMS 2460 and AMS QQ-C-320 specifications.
  • For application and sales inquiries, please contact: sales@hefusa.net


TS USA starts a new Liquid Nitriding facility in Phoenix, AZ

January 1, 2017

  • TS USA now has a Liquid Nitriding facility in Phoenix, AZ operating under the name of TS WEST. This facility is operated in partnership with Controlled Thermal Technology (CTT - http://www.cttaz.com), a company that provides a diverse range of heat treatment services out of this facility. So, this dual service facility can heat treat and subsequently nitride customer components.
  • TS WEST offers HEF’s trademarked MELONITE® treatments.
  • For application and sales inquiries, please contact: sales@hefusa.net


TS USA starts a new Liquid Nitriding facility in Chattanooga, TN

September 1, 2017

  • 35,000 sq. ft. facility.
  • 50-ft ceiling clearance: equipped to handle large & heavy parts.
  • 5-minutes off the I-27 freeway – near downtown Chattanooga.
  • Adequate floor space for future expansion into other surface engineering technology solutions, such as PVD coatings.
  • Largest operating equipment in North America. Part size capability:
    • Maximum Length: 8 feet (2.5 m). With flipping: 15 feet (4.6 m)
    • Weight: 4,000 lbs. (1,800 kg.) With special arrangement: 6,000 lbs.
  • Fully instrumented, computer controlled and capable of remote monitoring. Batch-to-batch traceability and process recording.
  • Designed to treat parts using the Quench-Polish-Quench (QPQ) process (originally developed by HEF Durferrit); and other Liquid Nitriding variations including HEF trademarked ARCOR®/MELONITE® treatments.
  • An in-line, post-nitriding impregnation process can provide an added level of corrosion protection and surface lubricity to the nitrided components.
  • The facility is equipped with a variety of post-nitriding surface finishing processes to ensure a customer and application specific surface finish can be achieved after nitriding.
  • An on-site lab is equipped to mount and polish treated samples for metallographic examination and micro-hardness evaluation of the nitrided layer.
  • Facility to be Automotive TS 16949 certified by July 2018.
  • For application and sales inquiries, please contact: sales@hefusa.net
State-of-the-art Liquid Nitriding (Salt Bath Nitriding) Line