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Nitriding Product List and Ranking from 31 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

Nitriding Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

  1. 極東窒化研究所 Kanagawa//Manufacturing and processing contract
  2. 旭千代田工業 技術本部 Aichi//Ferrous/Non-ferrous metals
  3. HEF DURFERRIT JAPAN Kanagawa//Manufacturing and processing contract
  4. 4 小山鋼材 Osaka//Trading company/Wholesale
  5. 5 ミリオン化学 Osaka//Chemical
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Nitriding Product ranking

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

  1. The difference between gas nitriding treatment and gas soft nitriding treatment. 極東窒化研究所
  2. Salt bath soft nitriding treatment "Isonite TF treatment" 旭千代田工業 技術本部
  3. Various Mold-Compatible Surface Treatment "KOSUMO-Process" 小山鋼材
  4. 4 Salt bath soft nitriding + oxidation treatment "Isonite SQP/QPQ treatment" 旭千代田工業 技術本部
  5. 5 Nitriding treatment ≪Tuftride, QPQ≫ HEF DURFERRIT JAPAN

Nitriding Product List

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Gas Soft Nitriding Treatment "SOFT-NITE"

Gas Soft Nitriding Treatment "SOFT-NITE"

Wear-resistant! Eco-friendly surface heat treatment.

"SOFT-NITE" is an environmentally friendly surface heat treatment that replaces the salt bath nitriding process (Tufftride method). Since it is a dry method that does not use cyanide salts such as KCN or NaCN, there are no pollution issues from wastewater, making it a very stable process. In particular, the surface condition and cleanliness are extremely good, contributing to cost-effectiveness. 【Features】 ■ High surface hardness and excellent wear resistance ■ Presence of compressive residual stress on the surface increases fatigue strength ■ High corrosion resistance due to the properties of the compounds ■ Treatment temperature is in the ferrite region, resulting in minimal deformation ■ Improved anti-seizing properties due to the presence of a porous layer on the surface *For more details, please refer to the catalog or feel free to contact us.

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Surface modification nitriding treatment "Sem Plasma Nitriding"

Surface modification nitriding treatment "Sem Plasma Nitriding"

Improving the lifespan of molds and enhancing the wear resistance of machine parts! – Even for complex-shaped components, there is no nitride unevenness and quality is stable. *Free prototypes available.

This is a surface hardening method that generates glow discharge in a dilute mixed gas atmosphere of nitrogen and hydrogen at several hundred pascals, simultaneously heating the workpiece and promoting nitriding due to ion impacts. Plasma nitriding is a processing method that is completely different from conventional nitriding methods, and it is currently being widely used for various mechanical parts, precision components, injection molding machine parts, and various molds, including automotive parts. In particular, our equipment features a built-in heater that allows for separate control of nitriding temperature and discharge conditions, making it a groundbreaking system that ensures uniform and excellent quality even in large capacity processing and large part treatment. - Features of Plasma Nitriding - (1) Nitriding can be performed only on the necessary parts (ensuring reliable anti-nitriding) (2) Minimal thermal distortion (3) A tough compound layer is obtained (4) It is the cleanest manufacturing method.

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【New Technology for Long-lasting Molds】 Hard Coating Formation Process 'DC Coat-R'

【New Technology for Long-lasting Molds】 Hard Coating Formation Process 'DC Coat-R'

Achieved "approximately twice the mold lifespan" compared to previous hard coating methods! Accepting test machining!

We have developed a plasma nitriding technology called "DC Coat R," which combines traditional PVD treatment. This new technology can shorten processing time compared to other nitriding treatments. Additionally, it significantly improves longevity, stress limits, and fatigue resistance. Moreover, during processing, it is an environmentally friendly surface modification process with no direct carbon dioxide emissions. ■Features ◎Reduction of oxidative wear with Cr-based films (high-temperature oxidation resistance) ◎Low friction coefficient achieved through finishing processes before and after treatment ◎Improved adhesion of CrN films through controlled plasma nitriding treatment ◎Increased compressive strength of the substrate due to controlled plasma nitriding treatment, enhancing resistance to high surface pressure strength ■Specific Product Examples ◎Cold forging dies ◎Press dies (high-tensile steel plates, general SUS materials, drawing dies, etc.) 【Effects】 Fatigue strength, adhesion, wear resistance, heat resistance 【Applicable Steel Types】 Applicable to all iron-based metals *For more details, please request documentation or view the PDF data available for download.

  • Processing Contract

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Salt bath soft nitriding treatment "Isonite TF treatment"

Salt bath soft nitriding treatment "Isonite TF treatment"

Effective for all metal products! Improved wear resistance, seizure resistance, fatigue strength, and corrosion resistance.

"Isonite TF treatment" is a soft nitriding process conducted in a salt bath, which is an effective surface treatment for all iron-based metals. Since the treatment is performed at a relatively low temperature of 580°C, which is far below the quenching temperature of steel, it is very advantageous in terms of deformation and dimensional changes. The nitrogen and carbon elements generated by the reactions in the salt bath penetrate and diffuse into the workpiece, forming a compound layer (iron nitride) on the very surface, with a diffusion layer just beneath it. The diffusion layer significantly improves fatigue strength, with improvements of more than twice observed, especially in carbon steel. [Characteristics] ■ Tough wear resistance ■ Anti-galling and anti-seizing properties ■ Improved fatigue strength ■ Enhanced heat resistance ■ Improved corrosion resistance, etc. *For more details, please download the PDF or feel free to contact us.

  • Surface treatment contract service

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Gas atmosphere soft nitriding "gas soft nitriding"

Gas atmosphere soft nitriding "gas soft nitriding"

It is suitable for processing iron-based materials such as low carbon steel and alloys, significantly improving wear resistance, fatigue strength, and corrosion resistance.

"Gas soft nitriding" is a soft nitriding treatment method conducted in a gas atmosphere using a process, utilizing NH3 and CO2 as reaction gases. It is suitable for treatment of low carbon steel and alloy steel, providing excellent wear resistance and improving fatigue strength. It is difficult for scale to form, resulting in a good surface finish, and it is possible to eliminate the scale removal process. 【Characteristics】 ■ Tough wear resistance ■ Anti-galling and anti-seizing properties ■ Improved fatigue strength ■ Enhanced heat resistance ■ Improved corrosion resistance, etc. *For more details, please download the PDF or feel free to contact us.

  • Surface treatment contract service

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[Case Study] Extension of Mold Lifespan through CH Plus Treatment

[Case Study] Extension of Mold Lifespan through CH Plus Treatment

Simultaneous treatment of mold nitriding and coating.

Extending the lifespan of molds Integrated treatment of nitriding and coating [Challenge] There are two types of surface treatment processes for molds: nitriding and coating. However, since they cannot be processed in the same chamber, the delivery time was taking over a week. [Solution] By introducing our equipment, we implemented "CH Plus Coating," allowing nitriding and coating to be performed in the same chamber. [Effect] This led to a reduction in delivery time of about 2 to 3 days. *There are additional materials not available online. For more details, please download the PDF or feel free to contact us. *Case study materials can be downloaded from the catalog of I.C.S. case studies.

  • Other molds

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If you want to improve the metal's sliding properties, use sulfide nitriding.

If you want to improve the metal's sliding properties, use sulfide nitriding.

In addition to the nitride compounds formed by conventional gas nitriding, a sulfide film coating is formed!

- The sulfide layer is relatively soft, improving initial compatibility during friction and exhibiting solid lubrication effects. - As a result, the sulfurized layer enhances compatibility and shows good seizure resistance and galling resistance. - For gears that require quiet operation, a reduction in gear noise can be achieved. - Gas soft nitriding of austenitic stainless steel is also possible.

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For prototyping and development! Precision heat treatment "gas nitriding" for single items and small lots.

For prototyping and development! Precision heat treatment "gas nitriding" for single items and small lots.

Ideal for prototyping and development! Heat treatment "gas nitriding" improves corrosion resistance and wear resistance. *We can accommodate single items and small lots!

"Gas soft nitriding treatment" is a heat treatment process that maintains a temperature range of 550 to 600°C in a mixed atmosphere of carburizing gas and NH3 (ammonia), allowing nitrogen and carbon to diffuse into the surface to form carbonitrides and achieve surface hardening. By leveraging the characteristics of the Unizof method, it can perform precise heat treatment without inconsistencies, even for one-off and small lot products. It is actively adopted for heat treatment in prototypes, development, and one-off or small lot products, such as sliding parts, wear-resistant components, and resin molds. **Features** - Strong improvement in wear resistance and corrosion resistance - Effective in suppressing distortion, suitable for products with strict dimensional accuracy - Adopts retort peripheral cooling method to reduce the load on products - Minimal nitriding unevenness, resulting in a beautiful (silver-gray) finish - Capable of handling sizes up to Φ600mm × 1000mm

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Plasma nitriding technology "Raster processing"

Plasma nitriding technology "Raster processing"

The nitrided surface has only a diffusion layer, resulting in a good surface finish and maintaining a glossy appearance!

"Raster processing" is a technology that forms only a tough diffusion layer without creating a compound layer. Since the process of polishing away the compound layer can be reduced, it contributes to cost savings. Additionally, by applying it to the substrate, the lifespan of molds and cutting tools can be extended several times compared to when only coating is applied, so we recommend composite hardening treatment using raster processing and PVD coating. [Features] ■ The nitrided surface consists only of a diffusion layer ■ The finished surface has good roughness and maintains gloss ■ Nitriding is possible in narrow slits and fine pores ■ Nitriding of cutting tools is possible ■ The release properties of resin molds are improved *For more details, please refer to the PDF document or feel free to contact us.

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Relationship between nitriding treatment time, treatment temperature, and hardness (nitrided steel)

Relationship between nitriding treatment time, treatment temperature, and hardness (nitrided steel)

Surface hardening treatment that hardens the surface of steel. Introduction of nitriding treatment time and the hardness transition curve of nitrided steel.

The Kyokuto Nitriding Research Institute Co., Ltd., which conducts gas nitriding treatment, annealing treatment, and more, will explain the relationship between nitriding treatment time, treatment temperature, and hardness (nitrided steel). A diagram shows the hardness distribution based on the nitriding treatment temperature. As the temperature increases, the surface hardness decreases. We have summarized the "nitriding treatment (SACM645) treatment time of 30 hours" in a table, and the "hardness transition curve of nitrided steel (SACM645)" is presented in a graph for explanation. *For more details, please download the PDF or feel free to contact us.

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  • Surface treatment contract service

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Nitriding treatment and gas nitriding treatment as surface hardening processes

Nitriding treatment and gas nitriding treatment as surface hardening processes

Enhance the surface of steel and achieve a deep and stable hardened layer! Introducing gas nitriding treatment!

"Nitriding treatment" is a surface hardening process that strengthens the surface of steel. Our company performs "gas nitriding treatment," which achieves a deep and stable hardened layer. It results in minimal thermal deformation and can significantly reduce the need for polishing. Often, it can be used without polishing. This process improves the material's fatigue resistance, and particularly, the high compressive residual stress of the nitrided layer significantly enhances the fatigue resistance of notched areas. 【Features】 - Surface hardening treatment that strengthens the surface of steel - Minimal thermal deformation, allowing for reduced polishing - High wear resistance, with almost no hardness reduction at temperatures up to 500°C - Sufficient corrosion resistance against superheated steam up to around 550°C - Low tendency for galling with counterpart materials in sliding parts - Gas nitriding has fewer environmental and health safety issues *For more details, please refer to the PDF document or feel free to contact us.

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You can understand how to choose surface hardening treatments! "Examples of gas nitriding applications."

You can understand how to choose surface hardening treatments! "Examples of gas nitriding applications."

[Presentation of Achievement List] Are you unsure about it? Solving the troubles of design engineers! Case studies categorized by industry, field, part name, material, and application of nitriding treatment.

Not sure what to choose? Solve the troubles of design engineers! Case studies of gas nitriding applications categorized by industry, part name, material, and nitriding treatment. From a list of achievements organized into three categories, you can quickly understand when to choose gas nitriding treatment. Gas nitriding, gas soft nitriding, carburizing, high-frequency hardening, thermal spraying, coating, hard chrome plating. Among various surface hardening treatments, gas nitriding has been continuously chosen for many years due to its excellent balance. We have compiled a list of the achievements of gas nitriding treatment, which boasts a high repeat rate, detailing the fields, parts, and materials for which it is selected. 【Reasons for Continued Selection】 - Compared to other surface hardening treatments, it has a lower processing temperature, resulting in less deformation. This may eliminate the need for subsequent correction processes. - Unlike methods such as coating or plating that involve adhesion, it hardens organizationally, reducing the risk of peeling. - It does not soften in high-temperature environments (around 200°C) like carburizing or high-frequency hardening. - Since it is processed in a gas atmosphere, it has less variation compared to physical hardening methods and can achieve deep hardening within the inner diameter. For more details, please download the catalog or contact us.

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Thermochemical treatment "Nitriding"

Thermochemical treatment "Nitriding"

Achieving excellent corrosion resistance! Nitriding process with an environmentally friendly treatment process.

The HEF Group is a worldwide leader in environmentally conscious "nitriding treatment." HEF applies CLIN (Control Liquid Ionic Nitriding) technology, which conducts environmentally friendly nitriding treatment by controlling liquid ions. Hard chrome plating can be replaced with soft nitriding treatment. 【Features of HEF Nitriding Treatment】 ○ Excellent corrosion resistance ○ High wear resistance ○ Environmentally friendly process For more details, please contact us or download the catalog.

  • Surface treatment contract service
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Innovative technology for plasma nitriding: "Atom Nitriding"

Innovative technology for plasma nitriding: "Atom Nitriding"

Nitriding of cutting tools is possible! We recommend composite hardening treatment using Atom nitriding and PVD coating!

Metal nitriding refers to a treatment that diffuses nitrogen atoms into the metal to improve surface hardness, with an expected lifespan increase of 2 to 3 times. "Atom Nitriding" is an innovative technology for plasma nitriding. In conventional nitriding methods, it is difficult to avoid the formation of a compound layer, necessitating the polishing removal of this layer. However, since tools and molds have complex shapes, polishing removal is challenging. This technology forms only a tough diffusion layer without creating a compound layer. [Features] - Nitrided surface consists only of a diffusion layer: the finished surface has good roughness and maintains gloss. - Nitriding is possible in narrow slits and fine pores. - Nitriding is possible for cutting tools. - Improved release properties for resin molds. *For more details, please refer to the PDF document or feel free to contact us.

  • Plasma surface treatment equipment

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Hybrid surface modification treatment method "MM Process Type S" for sulfur immersion nitriding.

Hybrid surface modification treatment method "MM Process Type S" for sulfur immersion nitriding.

The power of wear resistance + solid lubrication! A composite treatment that generates nitrides and sulfides on the surface of steel materials.

The "MM Process Type S" is our proprietary technology that has been improved upon the MM process (sulfurizing nitriding). The "MM Process" enhances friction resistance by generating a lubricating sulfide on the surface of steel products, followed by a hard nitride. "Type S" further improves anti-seizing, anti-galling, and wear resistance compared to conventional methods by concentrating sulfur components in the sulfurizing nitriding layer. 【Features】 ■ The synergistic effect of the sulfide layer on the surface and the nitride layer formed inside provides heat resistance to the hardened layer. ■ It combines anti-seizing and wear resistance. ■ We accept test trials. *For more details, please refer to the PDF document or feel free to contact us.

  • Surface treatment contract service

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