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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

16～30 item / All 73 items

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[Original Technology] Characteristics of NV Nitride

[Original Technology] Characteristics of NV Nitride

The applicable steel types are wide-ranging, environmentally friendly, and low-cost! Low-temperature treatment is possible, and it can accommodate various treatments.

We would like to introduce the characteristics of the revolutionary nitriding mass production process "NV Nitriding," which covers all the shortcomings of conventional methods. It is applicable to a wide range of steel types, environmentally friendly, and low-cost. By combining gas activation treatment and gas nitriding, it achieves a high-performance nitrided layer through powerful nitriding capability and control technology. Additionally, it allows for low-temperature treatment and can accommodate various processes. 【Characteristics】 ■ Wide range of applicable steel types ■ Environmentally conscious ■ Excellent mass production capability and can be in-house produced = Cost reduction is possible ■ Capable of low-temperature treatment ■ High productivity ■ Excellent stability of hardening depth ■ Free control of compound layer *For more details, please refer to the PDF document or feel free to contact us.

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Kn Control Nitriding Treatment (Nitrex)

Kn Control Nitriding Treatment (Nitrex)

Nitrogen treatment tailored to your needs, controlled by nitrogen potential (Kn)! *Large products up to Φ1000×H1400 can be processed.

Our company is the only contract processing manufacturer in Japan that has a licensing agreement with NITREX. The state-of-the-art nitriding treatment can control the Kn (nitriding potential) to change the nitriding composition. In particular, by using the Le Chatelier diagram (equilibrium phase diagram), we can control the diffusing nitrogen concentration to easily produce: - Nitrided structure with only a diffusion layer without a compound layer - Adjustment of nitrogen concentration in the diffusion layer - Generation of a dense compound layer (with minimal porosity) For more details, please contact us or download the PDF.

  • Surface treatment contract service

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Plasma nitriding treatment (ion nitriding treatment)

Plasma nitriding treatment (ion nitriding treatment)

This is an introduction to environmentally focused nitriding treatment using plasma energy in a vacuum.

At Asahi Heat Treatment Industry Co., Ltd., we conduct environmentally conscious nitriding treatment using plasma energy in a vacuum. When a direct current voltage is applied between the furnace wall and the workpiece in the vacuum furnace, glow discharge occurs. Hydrogen and gas are used as reaction gases to initiate the glow discharge. When nitrogen gas is introduced as the nitriding reaction gas into the excited plasma, nitrogen atoms are similarly excited and converted into N+ ions. These N+ ions are charged on the surface of the workpiece, allowing activated nitrogen elements to diffuse and harden the surface. Typically, the treatment is performed under a vacuum pressure of 1 to 10 torr at temperatures ranging from 400°C to 570°C. 【Features】 ■ The heat source used for treatment is plasma, which is energy-efficient. ■ Gas concentration can be easily adjusted, allowing for the tuning of nitriding characteristics. ■ By using carburizing gas, carburizing can be performed alongside nitriding. ■ Nitriding treatment can be conducted at low temperatures below 500°C, resulting in minimal dimensional changes and distortion. ■ Masking (nitriding prevention) can be easily achieved with jigs, allowing for partial nitriding. ■ The process is pollution-free and uses very few gases that contribute to global warming. *For more details, please refer to the PDF document or feel free to contact us.

  • Plasma surface treatment equipment
  • Surface treatment contract service
  • Other surface treatment equipment

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Technical Data: Gas Soft Nitriding Treatment (SN Process)

Technical Data: Gas Soft Nitriding Treatment (SN Process)

Introduction of technical materials that include detailed descriptions of the organization generated by SN processing!

This document introduces "Gas Soft Nitriding Treatment (SN Process)." It includes easy-to-understand examples such as "Photographic examples of nitrided layers by type of steel material" and "Structural details generated by SN treatment." Asahi Heat Treatment Industry is a group of professionals in heat treatment and surface treatment. Please feel free to contact us when needed. [Contents] ■ Photographic examples of nitrided layers by type of steel material ■ Detailed explanation of structures generated by SN treatment *For more details, please refer to the PDF document or feel free to contact us.

  • Processing Contract
  • Surface treatment contract service

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Soft nitriding treatment for stainless steel (PSN treatment)

Soft nitriding treatment for stainless steel (PSN treatment)

No vacuum treatment or removal of passive films by halides is necessary. Soft nitriding treatment for stainless steel.

When performing soft nitriding treatment on stainless steel, the nitriding is inhibited by the passive chromium oxide film on the surface. Therefore, it is usually necessary to create a vacuum to remove the passive film or to remove the passive film using halides before proceeding with nitriding. However, with our precision low-temperature nitriding treatment (PSN treatment), we create an atmosphere that reduces the passive film during thermal decomposition and use a powder material that generates gas for soft nitriding, making it possible to achieve soft nitriding of stainless steel. If you are considering soft nitriding treatment for stainless steel, please feel free to contact us. 【Other Features】 ■ Low-temperature treatment (400℃ to 530℃) minimizes dimensional changes and deformation. ■ Subsequent processes such as shot peening and PVD treatment are possible, allowing for synergistic effects through composite treatments. ■ Improvement of mechanical properties, mainly enhancing wear resistance, fatigue strength, and heat resistance. ■ Improved release properties in resin molds. *For more details, please refer to the PDF materials or feel free to contact us.

  • Other metal materials
  • Other surface treatment equipment
  • Surface treatment contract service

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Plasma carburizing, nitriding

Plasma carburizing, nitriding

Mass processing of a large number of small parts! We can perform nitriding treatment suitable for the intended use of the materials.

Introducing "Plasma Carburizing and Nitriding," developed by Kuniyu Thermal Engineering, which makes the impossible possible. This is a system technology developed during the 2008 fiscal year Saboin research for "Plasma Carburizing" and "Plasma Nitriding Treatment." It imparts wear resistance without compromising the excellent corrosion resistance of austenitic stainless steel. Currently, it is primarily implemented for surface modification of molds and machine parts that require high precision. Moving forward, we aim to improve the productivity of plasma treatment and further enhance its functionality and practical application. 【Features】 ■ Simultaneous processing of a large number of small parts ■ "Barrel-type plasma treatment" that prevents the occurrence of scratches and dents ■ Low-temperature treatment around 500 degrees, resulting in minimal distortion and dimensional changes ■ Nitriding treatment tailored to the application of materials, such as improved chipping resistance ■ Imparts wear resistance without compromising the excellent corrosion resistance of austenitic stainless steel *For more details, please refer to the PDF document or feel free to contact us.

  • Other surface treatment equipment

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S Coat - NV Night

S Coat - NV Night

Since there is no compound layer (white layer), heat check resistance is improved! This is a technology that has non-magnetic and non-corrosive properties.

Our "S Coat" is a low-temperature nitriding technology using austenitic stainless steel, characterized by non-magnetic properties, high hardness, and corrosion resistance. It uses a marble etching solution. Additionally, "NV Nite" is a very shallow nitriding technology using a gas method. Nitriding is performed without forming a compound layer (white layer) on the surface, preventing surface roughness. 【NV Nite Features】 ■ Improved resistance to pitting due to the absence of a compound layer (white layer) ■ Improved resistance to heat checking due to the absence of a compound layer (white layer) ■ Effective as a pretreatment for dry coating ■ Nitriding with minimal dimensional changes ■ Good surface finish *For more details, please refer to the PDF document or feel free to contact us.

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Various Mold-Compatible Surface Treatment "KOSUMO-Process"

Various Mold-Compatible Surface Treatment "KOSUMO-Process"

Fiscal Year 2009 Manufacturing Small and Medium Enterprises Product Development Support Project! We will introduce V1/V2 processing and V1-P/V2-P processing.

The "KOSUMO-Process" is an optimized surface treatment method that conducts detailed examinations of processing conditions and gas compositions based on the usage conditions and specific areas of the mold. Furthermore, the "V1-P and V2-P treatments" are composite nitriding processes that enhance aluminum melt loss resistance characteristics by adding a ferric oxide film to the gas soft nitriding layer. For more details about the technology, please contact us. 【V1 Treatment Details】 ■ Surface Hardness: 1000–1100 HV ■ Nitriding Diffusion Layer Depth: 130–170 μm ■ Compound Layer Present ■ Wear Resistance, Light Melt Loss Resistance ■ Sliding Parts, General Purpose Components *For more information, please refer to the PDF document or feel free to contact us.

  • Surface treatment contract service

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Nitriding Method "S.P.N. Method"

Nitriding Method "S.P.N. Method"

It can be safely applied to mirror-finished products and textured surfaces with minimal skin irritation from processing.

The "S.P.N. method" is a nitriding process for steel that utilizes plasma energy, differing from the conventional ion nitriding method that uses traditional plasma power. It causes less roughness on the surface of the treated material and can suppress the formation of compound layers, which are considered a drawback in the case of alloy steel. Therefore, it features reduced "dimensional changes" and "brittleness" compared to conventional methods. [Features] ■ Nitriding is possible for almost all types of steel, including stainless steel. ■ Stable glow can be maintained even for slit processed products, resulting in less variation. ■ Welding corrections can be performed directly after treatment. ■ By applying it to cutting tools and dies, and using it as a pretreatment for hard coatings such as PVD and DLC, greater effects can be achieved. *For more details, please download the PDF or contact us.

  • Surface treatment contract service
  • Plasma surface treatment equipment

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Soft nitriding treatment (Tuftride)

Soft nitriding treatment (Tuftride)

Processing is possible for various types of steel! It is a treatment that results in extremely little deformation compared to carburizing and conventional quenching.

Our company offers "soft nitriding treatment (Tufftriding)." This process is conducted at a lower temperature (generally between 550 and 580°C) than the transformation point temperature (the austenite transformation temperature during quenching), resulting in extremely minimal deformation compared to carburizing or conventional quenching. Unlike the phenomenon of hardening through quenching, this treatment hardens by diffusing nitrogen into the surface and forming a layer of iron nitride compounds on the surface. (This differs from the form of hardening that utilizes the transformation of steel as in quenching.) Soft nitriding aims to improve fatigue strength, wear resistance, and corrosion resistance. The finish appears gray to light gray (the color of the nitrided layer). The treatment methods include salt bath nitriding, gas nitriding, and plasma nitriding. 【Features】 ■ Soft nitriding treatment can be applied to most materials (various steel types including carbon steel, cold-rolled steel, structural steel, stainless steel, cast iron, etc.) ■ Due to salt bath nitriding, it is easy to apply to small quantities of diverse products. ■ We can also handle polishing treatment after Tufftriding in-house. ■ We can accommodate small precision parts and diverse small-batch processing with short lead times. *For more details, please refer to the external link or feel free to contact us.

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Logic N processing

Logic N processing

We will automate the atmosphere gas for gas soft nitriding using KNKN control technology with an H2 sensor.

This technology is a nitriding treatment method that maintains the low distortion characteristic of nitriding while allowing for arbitrary changes in the compound layer composition to enable enhancements according to specific purposes. The composition of ε(Fe2-3N), which is typical for gas soft nitriding, achieves hardness with its hexagonal crystal lattice but has the property of being brittle due to its high porosity. Therefore, this technology generates a compound layer with the composition of γ’(Fe4N), which significantly reduces porosity by increasing γ’, imparting excellent fatigue strength and wear resistance characteristics. 【Features】 ■ Strengthening of the compound layer from gas soft nitriding ■ Improved fatigue strength and wear resistance ■ Low distortion, a benefit of nitriding, is maintained ■ Arbitrary changes in compound layer composition allow for enhancements according to specific purposes ■ Effective for improving fatigue in high alloy steels like SKD molds, where embrittlement of the compound layer is a concern *For more details, please refer to the PDF document or feel free to contact us.

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Plasma nitriding

Plasma nitriding

Wide selection of processing temperatures! It is possible to obtain mechanical properties tailored to your purpose.

"Plasma nitriding" is a treatment that effectively improves wear resistance, galling resistance, and fatigue strength. Due to the processing in a vacuum, the surface obtained after treatment is in a non-oxidized state, resulting in minimal reduction in surface roughness and slight distortion, allowing for the omission or simplification of post-processing. It can be used for nitriding special metals such as stainless steel and titanium. Additionally, partial nitriding (anti-nitriding) can be easily performed, and in some steel types, it can enhance corrosion resistance. 【Features】 ■ Effective treatment that improves wear resistance, galling resistance, and fatigue strength ■ Capable of nitriding special metals such as stainless steel and titanium ■ Easy to perform partial nitriding (anti-nitriding), and can improve corrosion resistance depending on the type of steel *For more details, please refer to the PDF document or feel free to contact us.

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Mold: Optimal Wear Resistance Solution - PVD and Nitriding Treatment

Mold: Optimal Wear Resistance Solution - PVD and Nitriding Treatment

Dramatically improve the quality and productivity of metal forming through surface treatment.

Metal forming tools used for stamping and pressing require surface treatments that provide high durability, reliability, and rust resistance. The BALINIT and BALITHERM series from Oerlikon Balzers cater to a wide range of applications such as deep drawing, blanking, trimming, and punching, achieving high precision and efficiency in processing. Advantages of Oerlikon Balzers' BALINIT and BALITHERM: ■ Excellent wear resistance reduces wear on cutting edges and drawing radii, extending the lifespan of molds. ■ High stroke rate compatibility contributes to shorter cycle times and reduced manufacturing costs. ■ The structure of high hardness base layer plus low friction top layer reduces the amount of lubricant used. ■ Reduces the load on tools and allows for visual monitoring of wear. ■ Suppression of cold welding improves the quality of the product surface.

  • Surface treatment contract service
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SOFT-NITE Gas Soft Nitriding Treatment

SOFT-NITE Gas Soft Nitriding Treatment

A surface hardening method that reduces costs and is resistant to wear! There are no pollution issues from wastewater since it does not use cyanide salts.

Gas soft nitriding treatment is one of the soft nitriding methods developed to solve the quality issues associated with traditional salt bath nitriding and to reduce environmental impact while achieving equal or superior quality characteristics. Generally, at a treatment temperature of around 570°C, a mixed gas primarily composed of ammonia gas is added to form a compound layer of carbides and nitrides on the surface of the processed material, generating a diffusion layer beneath it. This nitrided layer significantly improves the mechanical properties of steel components, such as wear resistance, corrosion resistance, and fatigue resistance. Gas soft nitriding treatment is an environmentally friendly method that allows for the acquisition of effective quality characteristics in a short time, making it a processing method that considers environmental aspects and responds to the lightweight and miniaturization of components due to the spread of electric vehicles. It is a surface hardening method that will increasingly be applied in a wide range of markets. For more details, please contact us or refer to the catalog.

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Nitriding Method: 'Acid Nitriding ON, ONO, ONOR Process'

Nitriding Method: 'Acid Nitriding ON, ONO, ONOR Process'

Environmentally friendly, pollution-free heat treatment for the Earth! A new type of nitriding method that exhibits excellent properties.

Acid nitriding is a nitriding method that differs from conventional nitriding methods by adding an appropriate amount of oxygen or air to ammonia gas. Our acid nitriding is based on the ON process and includes three types of processes: ONO, ONOR, each with excellent characteristics. Compared to gas soft nitriding, acid nitriding shows almost the same properties in wear resistance and fatigue strength, but it has the added features of excellent corrosion resistance, seizure resistance, compatibility, and a beautiful black appearance. 【Features】 ■ Pollution-free heat treatment ■ High surface hardness and excellent wear resistance ■ Improved fatigue strength due to surface residual compressive stress ■ Enhanced compatibility and seizure resistance due to the porous acid nitriding layer formed on the surface ■ A beautiful glossy black appearance is achieved *For more details, please refer to the catalog or feel free to contact us.

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