Heat Treatment


Contact eifeler: USA    Canada    Mexico


At voestalpine Thermo-Tech, we offer a wide range of vacuum heat treatment services. Our thermal processing center has an extensive line of vacuum heat treatment equipment to suit all of our customers’ requirements, accommodating tools and components of a wide range of size and/or complexity. We have built our success and reputation on value engineering, practical innovations, attention to detail, unparalleled product quality, and on long-term client relationships.

Our goal is to provide our customers with a complete experience, from the very first stages of material selection, to the final stages of post-heat treatment recommendations. Our engineers and metallurgists are available to our clients at all times to ensure that the heat treatment process is ideal for your company’s products.

Our organization remains at the industry’s forefront by maintaining memberships in major manufacturing and service associations such as: American Society for Materials (ASM), Canadian Plastics Industry Association (CPIA), North American Die Casting Association (NADCA), Ontario Aerospace Council, the Society of Manufacturing Engineers (SME), as well as other associations.

At voestalpine Thermo-Tech, we also understand that turnaround time can’t be overlooked. Our heat treatment facility operates 24 hours a day, 7 days a week. We strive to function as a natural extension of our customers’ supply chain. We focus on quality, while at the same time ensuring our clients’ heat treatment needs are fulfilled in a timely manner. We aim to exceed your expectations and provide you with outstanding customer service and quality assurance.

Our capabilities include:

  • Nitriding
  • ThermoniteSM (Gaseous Ferritic Nitro-Carburizing)
  • CryothermSM (Cryogenic Treatment)
  • ThermoxSM , Thermox II (Steam Oxidation Treatment)
  • Tempering (Vacuum, Atmosphere)
  • Stress Relieving (Vacuum, Atmosphere)
  • Annealing (Vacuum, Atmosphere, Bright)
  • Precipitation Hardening (Ageing, Solution Annealing)
  • Normalizing
  • Homogenizing
  • Welding
  • Customized Racks / Fixturing

Explore our Heat Treatment Capabilities

A Gaseous Ferritic Nitro-Carburizing Treatment

Thermonite is a unique Nitro-carburizing surface treatment that answers the needs of hot work and cold work tool manufacturers. Thermonite creates a high wear resistance in ferrous alloys, and is suitable for parts requiring high surface hardness, wear and erosion resistance, as well as resistance to atmospheric corrosion. Being a low temperature process, it creates minimal risk of distortion or loss of any vital engineering properties.

A Nitrogen Cryogenic Treatment

The Cryotherm process is a controlled sequence of repeated heating and cooling to cryogenic temperatures, which enhance tool performance in terms of higher fatigue strength, wear resistance hardness and dimensional stability. In this process, optimum properties are attained through a fine balance between the heat treatment process parameters, special tempering cycles and precise control over the cooling operations.


Our Thermox process is used to produce a stable thin layer of oxide on the surface of a component through a controlled oxidation process. We also offer Thermox II which is a duplex process for even greater surface integrity.

Learn more

Metallurgical Laboratory Services

Our metallurgical laboratory offers a wide range of inspection, testing and failure analysis services, designed to assist our clients in solving everything from the very simple to the most complex metallurgical issues. Our approach is to detect the root cause of the issue and offer realistic solutions to solve your metallurgical problems.

Learn more

Tool Steel Welding

Tool steel welding is often needed for die-casting dies, large forging dies, plastic molding, car body dies and blanking tools – in cases such as a repair or an engineering change, where welding can be done more cost effectively than producing new tooling.

Learn more

Quality Assurance

We are dedicated to providing Heat Treatment and metallurgical services that fulfill our customers’ individual needs and certification requirements.

We are certified to ISO 9001:2008 and AS 9100C standards and received Nadcap Accreditation in 2011.

Learn more