On-Site Heat Treatment Services Company in the USA

135+ Years of Excellence

Axiom Heat Treatment is a leading on-site heat treatment services company providing Post Weld Heat Treatment (PWHT), preheat, bake-out, and induction heat treatment for energy, chemical, refinery, and industrial projects across the United States.

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About Axiom HT

Two industry leaders have joined forces to become the premiere provider of heat treatment equipment and furnace products to the U.S. market. Through a distributorship agreement, Axiom Heat Treatment (Axiom HT) and Finland-based Heatmasters, are on point to lead the industry with innovative products as well as on-site service solutions.

AxiomHT, creators of the patented blended heating and cooling method, Axi-Therm, are fast becoming the go-to in the energy sector when cost and schedule challenges arise.

Heatmasters – The Wizards of Metal have been a leading innovator in heat treatment products and services to the global market since 1974

Want to learn more? Reach out to sales@axiomht.com and let us help you find the right product or service for your project!
www.heatmasters.net

Axiom Heat Treatment and Heatmasters Collaboration

Our Heat Treatment Services

We specialize in the following heat treatment applications:

Pre-Heat

Is a process of heating the metal to the desired temperature and maintaining this before and during the welding process.

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P.W.H.T

PWHT is the relaxation of residual stress caused during the welding or in other processes such as high-pressure piping and is also effective for hydrogen removal.

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Bake Out

(Hydrogen Bake Out) Is a heat treatment process that drives out any hydrogen that may have occurred during welding or has seeped into the parent metal in an in-service process pipe, vessel or structure.

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Post Heating

Is the maintenance of preheat after the weld has been completed, which allows hydrogen dissolution from the weld to occur. The post-heat temperature may be the same as, or greater than, the original preheat temperature specified.

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Line Thaw

Is applied heat to help liquify congealed or solidified product in a process system.

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Electrical Resistance

Heating that uses low-voltage ( 80volt) flexible ceramic heating elements placed around the component controlled by multi-point heat treatment control consoles.

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Induction

Is heating that uses an electromagnetic field to create a disturbance in the molecules of the metal that creates heat, the frequency of the electromagnetic field can be quicker than traditional electric resistance heating, the system is quicker to set up and is a good tool for some heat treatment applications.

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Combustion

Is used to heat large structures inside temporary furnaces, vessels, lime kilns, and other large structures because of its efficiencies. Utilizing gas and air to force the heat into the area requiring the heat treatment creates a uniformity that heats the intended area.

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Download P91 Expert Resources

Expert Resource Guide · PDF

P91 Survival Guide

Bonus

The Ultimate Guide · PDF

Ultimate P91 Survival Guide

4 Hours

Cooling time from 800F to 120F. Get back to production quicker.

30% Savings

Average savings with our Patent Pending cooling technology.

135+ Years

Experience. Executive leadership team & subject matter experts.

No Impact to Material Integrity

Industry-standard is 8-48 hours of cooling, with our solution it can be cut to under 4 hours!

Patent Pending Technology

AxiomHT’s patent-pending technology REDUCES COST, IMPROVES SCHEDULE, and gets you back to PRODUCTION QUICKER.

Brochure Whitepaper

An Average of 30% savings

Less KW Usage

Less heating elements

Less personnel

Less heat treatment modules

Heating and Cooling Solution

AxiomHT delivers a safe, cost effective, engineered heating and cooling solution that exceeds industry standards and delivers a service of excellence. Our executive leadership team and subject matter experts consist of over 135+ years of experience.

Our Unique Services

Axi-Therm Blended Heating & Cooling

Axi-Therm Blended Heating & Cooling is a new Heat Treatment method utilizing the use of 1, 2 or all 3 heating methods simultaneously to help maximize temperature dissipation into the heated area and a cooling method once the metal design criteria have been met.

Reducing costs on the front end and improving your time back to production on the back end.

Maximize Temperature Dissipation

Unique, custom solutions

Reduce Costs

Back to production faster

Our Heat Treatment Methods

While we pride ourselves on our patented cooling solutions, we also offer full service on-site heat treatment services.

Our experts in Resistance, Combustion, Induction and Pressure Vessels are ready to help make your next project a success.

Electrical Resistance

Uses flexible low voltage electrical resistance heating elements.

Traditionally the most utilized, the low-voltage electrical resistance services model helps with a quick and precise control of the heat by using small flexible ceramic resistance heating elements of 40 to 80-volt power. The varying sizes of the flexible ceramic elements often provide a suitable approach for many components and for those with complex geometries, whether it is Preheat, Bake Out, or PWHT.

Combustion

Uses high-velocity gas and air mixture creating high and or low heat through applying positive pressure causing a scrubbing action and a positive pressure which forces heat across the face of, and through the thickness of components.

By utilizing high-velocity burners placed strategically through firing ports, the combustion method is a very cost-effective application that can be utilized for refractory dry-outs, furnace heat-ups, start-ups, and a myriad of other applications in many global industries including refining, chemical, cement, and pulp and paper.

Induction

Uses high-frequency currents through various air and water-cooled coils, creating a safe, efficient, and rapid heating application.

Becoming more prevalent in field service applications, high-frequency electrical currents create a magnetic field and molecule movement in the component metal that heats faster than other more conventional heating methods. The quicker heating and air or water-cooled coils used on the workpiece make this a safe and practical application for high production activities.

Pressure Vessels & Tanks

Using a patent-pending method where all heat transfer types, as well as various cryogenic cooling solutions, are considered to reduce cost and schedule and get you back to production quicker.

Read our whitepaper on how our patent-pending method of heating and cooling your pressure vessels and tanks can reduce cycle time by 30%.

Industries We Serve

Axiom Heat Treatment works across multiple industrial sectors where code compliance and uptime are critical:

Oil & Gas

Energy & Power Generation

Chemical Processing

Cement & Mining

Heavy Fabrication

Pipeline & Infrastructure

Refineries

Pulp & Paper

Pressure Vessel Manufacturing

Why Choose Axiom as Your Heat Treatment Company

Unlike traditional heat treatment companies, Axiom HT combines advanced heating methods with patented cooling technology to shorten project schedules while maintaining metallurgical integrity.

What makes Axiom HT different

Patent-pending Axi-Therm blended heating & cooling

Average 30% reduction in heat treatment cycle time

Nationwide on-site heat treatment services

Zero compromise to material properties

Proven results in energy, chemical, and heavy industry sectors

Experts in resistance, induction, combustion, and pressure vessels

What Heat Treatment Achieves

Heat treatment directly affects the mechanical properties and service life of metal components. Proper heating and controlled cooling ensures metals meet required design and safety standards.

The key metallurgical objectives include:

Strength – Resistance to deformation under load

Ductility – Ability to stretch without fracture

Malleability – Ability to shape and machine safely

Hardness – Resistance to wear and penetration

Incorrect heating or cooling can lead to cracking, embrittlement, or failure in service.

Latest Insights

July 29, 2026

Normalizing Heat Treatment: Process, Temperatures & Benefits

Azmi Anees

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Normalizing is a heat treatment method widely used to refine grain structure and reduce residual stresses in metals. With a controlled heat-and-air-cool cycle, it resets the internal structure of metals before service loads. In this blog, discover how normalizing heat treatment actually works, with temperatures, benefits, and more. You Might Also Like: 10 Innovative Heat […]

July 27, 2026

How Does Heat Treating Steel Work?

Azmi Anees

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Discover how heat treating steel works and why it's one of the most important processes for improving steel’s strength, hardness, and durability. What looks like a simple cycle of heating and cooling is actually a precise process that permanently reshapes the steel's microstructure. In this blog, we'll break down how heat treatment of steel works, […]

June 29, 2026

What is P91 Welding?

Azmi Anees

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P91 welding is the process of joining P91 steel pipe using controlled preheat, interpass temperature, and post weld heat treatment (PWHT). It is one of the most demanding jobs in industrial fabrication. Get it wrong and cracked welds can show up months or years later. This blog is a simple, beginner-friendly breakdown of why the […]

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Frquently Asked Questions

What makes Axiom Heat Treatment different from other heat treatment companies?

Axiom Heat Treatment combines over 135+ years of field experience with patent-pending blended heating and cooling technology. Our engineered solutions reduce cycle time by up to 30% while maintaining full material integrity and code compliance

How much experience does your team have in on-site heat treatment?

Our executive leadership and subject matter experts bring more than 135+ years of combined experience in metallurgy, welding support, and field heat treatment services across energy, chemical, and industrial sectors.

Do your heat treatment services comply with industry standards and codes?

Yes. All projects are performed according to customer specifications and applicable industry standards such as ASME, API, and project-specific metallurgical requirements, with full temperature monitoring and documentation provided.

Is on-site heat treatment safe for critical industrial equipment?

When performed by qualified professionals using engineered heating plans and certified equipment, on-site heat treatment is safe and widely used for pressure vessels, piping, and structural components in critical industries.

What industries do you primarily serve?

We support oil and gas, energy, chemical processing, refineries, pressure vessel manufacturing, pulp and paper, cement, and heavy industrial fabrication projects throughout the United States.

How does your patent-pending cooling technology reduce downtime?

Our Axi-Therm blended heating and cooling system accelerates controlled cooling after heat treatment, reducing traditional cooling times from 8–48 hours to under 4 hours in many applications without affecting metallurgical properties.

Do you provide full documentation and reporting for each project?

Yes. Every project includes temperature charts, hold times, ramp rates, and full traceability documentation to support quality control and regulatory compliance.

Can you handle large or complex heat treatment projects?

Our team specializes in complex geometries, pressure vessels, tanks, and large industrial structures using resistance, induction, and combustion heat treatment methods.

Where do you provide on-site heat treatment services?

Axiom Heat Treatment provides on-site heat treatment services nationwide across the United States, with rapid mobilization for urgent and shutdown projects.

How do clients know they can trust Axiom Heat Treatment?

Clients trust Axiom HT because of our proven results, patented technology, safety-first culture, experienced leadership, and long-standing partnerships with major industrial operators and engineering teams.