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Nitriding Companies

IQS Directory provides a comprehensive list of nitriding companies. Use our website to review and source top nitriding companies with roll over ads and detailed product descriptions. Find nitriding companies that can design, engineer, and provide nitriding services to your companies specifications. Then contact the nitriding companies through our quick and easy request for quote form. Website links, company profile, locations, phone, product videos and product information is provided for each company. Access customer reviews and keep up to date with product new articles. Whether you are looking for manufacturers of nitrite hardening, salt bath nitriding, liquid nitriding, or customized nitriding of every type, this is the resource for you.

  • 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

Nitriding

Nitriding is a case hardening operation that diffuses nitrogen into metal parts and components to create a strong and durable outer layer. Unlike other coatings and plating techniques, there is no risk of delaminating with nitriding as the nitrogen is actually fully alloyed or incorporated into the surface of the metal.

While steel and its alloys have long been treated through nitriding, it is gaining popularity for applications involving other metals such as cast iron, aluminum, molybdenum and titanium. Metallurgical, construction, shipping, tool and die and other high stress machining applications frequently use nitriding which is faster, more precise and more readily reproduced than many other case forming heat treatments.  Cold wall and hot wall furnaces are used to heat parts and nitrogen rich gases, liquids or solids in order to enact case hardening. With either type of furnace temperature regulation is integral to the success of nitriding as it is with many other forms of heat treating. Non-uniform temperatures can lead to increased distortion and uneven stresses which could result in unpredictable product performance and even potentially hazardous mechanical failure. Uneven surface hardness, thickness and case depth may also result from inadequate temperature regulation during the nitriding process. Technological advancements allow for careful temperature monitoring of both the furnace atmosphere and the part itself to ensure the most effective treatment. Progressively more advanced, the nitriding process allows for a broad range of materials to be case hardened via the introduction and diffusion of nitrogen into the surface layers of industrial parts and components.


There are three main methods used to effectively infuse parts with nitrogen for increased hardness and durability. Each process is named for the technique used to implant nitrogen into the substrate. Gas nitiriding is a popular technique in which the gas ammonia is put in contact with a heated work piece. The heat allows the nitrogen present in ammonia to dissociate from the hydrogen and instead bond chemically and physically with the metallic component. Another technique is what is known as salt bath nitridng or cyaniding. Unlike other processes which may take hours, cyaniding takes as little as 30 minutes depending upon the metal and part being hardened. The process for salt bath nitriding is very simple. The part is placed in the bath of sodium cyanide which is heated to a temperature between 550 and 590 °C (1,022 - 1,094 °F). The component remains submerged for a period of time which is determined by the desired effect of nitriding. Though it was once exceedingly common, the use of cyanide salt baths continues to diminish as more environmentally friendly materials gain preference over the highly toxic cyanide. The third and final type of nitriding is known as plasma nitriding. This process, also known as ion nitriding or glow discharging is quickly becoming the most popular avenue for case hardening with nitrogen. At high voltage, nitrogen atoms are dissociated and accelerated to diffuse in the part. This heats the working surface which cleans and hardens it. In addition to improved strength and structural integrity, each of these nitriding methods offers enhanced performance, strain limits, fatigue strengths and product longevity when performed properly.