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Nitriding treatment Product List and Ranking from 10 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 treatment 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. 旭千代田工業 技術本部 Aichi//Ferrous/Non-ferrous metals
  2. HEF DURFERRIT JAPAN Kanagawa//Manufacturing and processing contract
  3. ミリオン化学 Osaka//Chemical
  4. 4 メイネツ Aichi//Manufacturing and processing contract
  5. 5 パーカー熱処理工業 川崎事業所 Kanagawa//Manufacturing and processing contract
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Nitriding treatment 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. Salt bath soft nitriding treatment "Isonite TF treatment" 旭千代田工業 技術本部
  2. Salt bath soft nitriding + oxidation treatment "Isonite SQP/QPQ treatment" 旭千代田工業 技術本部
  3. Technical Explanation Document for Salt Bath Soft Nitriding "Tuftride Treatment / QPQ Treatment" HEF DURFERRIT JAPAN
  4. 4 Surface hardening method of salt bath soft nitriding "Isonite treatment" [Greatly improves heat resistance] ミリオン化学
  5. 5 Salt bath composite soft nitriding Isonite LS パーカー熱処理工業 川崎事業所

Nitriding treatment 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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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.

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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.

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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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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.

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  • 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
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  • Surface treatment contract service

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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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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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Salt bath soft nitriding + oxidation treatment "Isonite SQP/QPQ treatment"

Salt bath soft nitriding + oxidation treatment "Isonite SQP/QPQ treatment"

Improvement of heat resistance, corrosion resistance, and sliding properties! Composite treatment applying ferric oxide to the isonite surface.

"Isonite SQP/QPQ treatment" is a composite treatment of TF processing, specifically designed to enhance corrosion resistance. By immersing the material in an AB bath immediately after TF processing, an oxide film is formed directly above the compound layer, allowing for higher corrosion resistance, improved surface roughness, and reduced bending and distortion without compromising the characteristics of Isonite TF treatment. Additionally, in terms of corrosion resistance, it has capabilities exceeding those of hard chrome plating, and this treatment alone can satisfy both surface hardening and rust prevention effects. [Characteristics] ■ Isonite SQ - By applying surface polishing after Isonite SQ treatment, a glossy black appearance and good surface properties can be achieved. ■ Isonite QPQ - By immersing again in the AB bath after Isonite SQP treatment, a dense oxide film is formed on the surface, enhancing corrosion resistance. - The glossy black appearance is excellent, increasing product value, and it can also be used for decorative products. *For more details, please download the PDF or feel free to contact us.

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Comprehensive Catalog: Surface Hardness Technology

Comprehensive Catalog: Surface Hardness Technology

Introducing a variety of surface modification technologies that play a crucial role in enhancing functionality and quality across various industries!

This catalog features the surface hardening technology of Asahi Chiyoda Industries Co., Ltd., a comprehensive surface modification treatment manufacturer that boasts a top-class share in soft nitriding treatment. We provide appropriate surface modification technologies that can promptly respond to customer needs, including the "Isonite TF treatment," an effective surface treatment for all iron-based metals conducted in a salt bath, the "Vacuum Carburizing Quenching" using propane gas in a vacuum, and the "AC Coat," a thin film solid lubrication coating that demonstrates excellent friction performance even under unlubricated conditions due to its extremely high lubrication performance. [Contents] - Isonite TF treatment - Isonite SQP/QPQ treatment - Isonite LS treatment - Gas soft nitriding - AC Coat, etc. *For more details, please download the PDF or feel free to contact us.

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"Gas Soft Nitriding Treatment by the Unizoff Method" *Heat Treatment Case Studies Now Available!*

"Gas Soft Nitriding Treatment by the Unizoff Method" *Heat Treatment Case Studies Now Available!*

Improved corrosion resistance and wear resistance! "Gas soft nitriding treatment" using the Unisof method.

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. The Unizoff method generates this mixed atmosphere through the thermal decomposition gas of urea, creating a consistently stable environment. Compared to salt bath heat treatment, it does not use cyanide salts, making it an environmentally friendly heat treatment method that contributes to pollution prevention. Various set methods can be chosen according to the product, such as direct placement on fixtures, hanging, or alignment. Additionally, gas soft nitriding treatment using ammonia gas is also available upon request. 【Features】 - Strong improvement in wear resistance and corrosion resistance - Effective for products with strict dimensional accuracy while minimizing distortion - Adopts retort outer cooling method to reduce 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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Product Performance

Product Performance

Introduction to Meinet's Strengths and Product Achievements

We introduce Meinetz's products, which handle liquid carburizing, quenching, tempering, vacuum heat treatment, gas nitriding, various coatings, shot blasting, and more. On this page, we showcase our product achievements made through gas nitriding, salt bath heat treatment, solution heat treatment, and stress relief annealing, along with photos categorized by industry, material, delivery time, and type of heat treatment. For heat treatment processing and deep drawing press processing, we also accommodate sizes not listed, so please feel free to contact us. 【Published Achievements】 ■ Gas Nitriding - Product Name: Tap Base - Industry: Electrical Equipment Related - Material: SPCC - Delivery Time: 3-4 days - Heat Treatment: Gas Nitriding - Other: Zinc Plating

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Collection of examples of heat treatment processes such as gas nitriding and salt bath heat treatment *Free distribution

Collection of examples of heat treatment processes such as gas nitriding and salt bath heat treatment *Free distribution

A collection of 14 case studies on heat treatment processes, including gas nitriding and salt bath heat treatment. It includes types of heat treatment and the objects/industries involved! *Currently available as a free gift.

The "Case Studies of Heat Treatment" is a collection that includes 14 types of heat treatment methods and target objects, such as gas nitriding treatment and salt bath heat treatment, as well as the relevant industries. [Contents] ■ Gas Nitriding Treatment ■ Salt Bath Heat Treatment ■ Solid Bath Heat Treatment ■ Stress Relief Annealing ■ Range of Possible Heat Treatment Processes ■ Range of Possible Deep Drawing Press Processing *Please view the PDF of the heat treatment case studies available for download.

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Surface hardening method of salt bath soft nitriding "Isonite treatment" [Greatly improves heat resistance]

Surface hardening method of salt bath soft nitriding "Isonite treatment" [Greatly improves heat resistance]

Achieving heat resistance of over 500℃! "Isonite treatment" enables the rationalization and cost reduction of aluminum extrusion molds and die-cast mold components.

"Isonite treatment (low-temperature salt bath nitriding)" is a surface hardening method that forms a nitrided layer on metal surfaces. It significantly improves the fatigue strength of steel, cast iron, and sintered metals. The formation of the nitrided layer exhibits high heat and wear resistance even at temperatures ranging from 300 to 600°C, and aluminum extrusion molds and die-cast mold components treated with Isonite do not soften even when heated to 500°C. The improvements in heat resistance, wear resistance, and resistance to thermal cracking associated with Isonite treatment greatly contribute to rationalization and cost reduction. 【Features】 ■ Improved heat resistance and wear resistance ■ Increased fatigue strength ■ Enhanced resistance to thermal cracking ■ Improved corrosion resistance ■ Significant contribution to rationalization and cost reduction *For more details, please download the catalog or contact us.

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