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Heat Treatment Companies

IQS Directory provides an extensive list of heat treatment companies. Utilize our website to review and source heat treatment companies with our easy-to-use features which allow you to locate heat treatment companies that will design, engineer, and provide heat treatment services for your exact specifications. Our request for quote forms make it easy to connect with leading heat treatment companies. View company profiles, website links, locations, phone number, product videos, customer reviews, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for salt bath heat treating, vacuum heat treating, or normalizing heat treatment.

  • Cleveland, OH 216-481-8444

    The Euclid Heat Treating Company offers a wide array of heat treating services to meet all of your needs. From case hardening to induction hardening to eddy current testing and gaging, we can accommodate sizes from the smallest rivet to the largest gear. Contact is today so we can meet all your heat treating needs!

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  • Mason, MI 877-335-7191

    Nitrex provides modern metal treating equipment and services to its valuable customers. We offer nitriding, nitrocarburizing and vacuum heat treating to the aerospace, automotive and defense industries. For more information about our quality products, please call or visit our website.

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  • Fairfield, OH 513-870-9111

    Byron Products is a leading supplier of fully integrated metallurgical products. Byron has state-of-the-art machinery and products and specializes in heat treating in addition to many other related services. Customers like you care about high quality products at a competitive price, and so does Byron Products. Call today for more information or visit Byron’s helpful website.

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  • WADSWORTH, OH (330)335-1600

    EBNER is one of the leading manufacturers worldwide of heat treatment facilities for the steel, copper, and aluminum semi-finished products industries. We manufacture continuous and batch-type furnaces featuring cutting-edge technology, i.e. systems delivering maximum performance and optimum anneal results.

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  • W Lafayette, OH (800)474-2142

    Our mission at Jones Metal is to be a world-class precision metal forming company, partnering with customers from diverse markets to design and produce top quality parts in a cost effective manner. Our innovative and value-added services, including heat treating, deep draw metal forming and hydroforming, contribute to the business success of our customers and our company.

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businessIndustry Information

Heat Treatment

Heat treatment is a broad term encompassing a number of thermally involved methods and processes used to modify the physical, mechanical and even chemical properties of industrial materials with the goal of adding hardness or ductility.

Through a series of timed heating and cooling cycles, heat treatment processes such as case hardening and annealing cause a realignment of internal atomic structures and in so doing create application specific parts that are softened or hardened as needed. Both formed parts and raw materials may be treated in this manner. Automotive, construction, military, tool and die, shipping, transportation and aerospace industries among others frequently utilize heat treating to produce parts with heightened capabilities required for harsh industrial applications. Not only hardness and ductility, but also tensile, impact and yield strengths are significantly improved or reduced by variable heat treating procedures. Post-production heat treating also relieves stress and tension that may have been an incidental byproduct of manufacturing processes such as cold-rolling, forging and welding. Although heat treating metals and their alloys such as aluminum, steel, copper and stainless steel are the most predominant applications for heat treatment, specialized technologies are commonly employed to alter the physical and mechanical properties of glasses, ceramics and polymers as well. This energy intensive process is extremely versatile, but must be carefully conducted to reduce the opportunity for mechanical failure due to insufficient heating or cooling.


Heat treatment providers often start by considering the end goal of heat treatment. Rather than request a certain procedure, clients dictate the desired results or requirements for a given part or material. Metallurgists and other heat treatment professionals then determine the operations necessary to produce hardened or softened, flexible or rigid components. Often more than one process is used. With the end goal in mind, clients and engineers look at the microstructure, or internal atomic infrastructure of the material to be treated. Grains or crystallites form a complex lattice, the structure of which is reflected in the properties of the pre-treated material. Heat treatment raises the temperature of these grains to what is known as the critical temperature, the point at which the lattice begins to come undone. The temperature, rate and duration of heating as well as the speed, rate and degree of cooling are then manipulated so as to realign the atoms. In general, fast cooling produced via cooled gas or liquids engulfing the material results in coarse grain which provides excellent strength and rigidity, but may also become brittle. Slow cooling, such as that used in annealing produces small grain structures that have impressive strength but are flexible. While heating and cooling are essential to all heat treatments, additional considerations include chemical restructuring.