We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for Nitriding.
ipros is IPROS GMS IPROS One of the largest technical database sites in Japan that collects information on.

Nitriding Product List and Ranking from 32 Manufacturers, Suppliers and Companies | IPROS GMS

Last Updated: Aggregation Period:Mar 25, 2026~Apr 21, 2026
This ranking is based on the number of page views on our site.

Nitriding Manufacturer, Suppliers and Company Rankings

Last Updated: Aggregation Period:Mar 25, 2026~Apr 21, 2026
This ranking is based on the number of page views on our site.

  1. HEF DURFERRIT JAPAN Kanagawa//Manufacturing and processing contract
  2. 極東窒化研究所 Kanagawa//Manufacturing and processing contract
  3. 朝日熱処理工業 Osaka//Manufacturing and processing contract
  4. 4 旭千代田工業 技術本部 Aichi//Ferrous/Non-ferrous metals
  5. 5 ミリオン化学 Osaka//Chemical

Nitriding Product ranking

Last Updated: Aggregation Period:Mar 25, 2026~Apr 21, 2026
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. Technical Explanation Document for Salt Bath Soft Nitriding "Tuftride Treatment / QPQ Treatment" HEF DURFERRIT JAPAN
  3. Kn Control Nitriding Treatment (Nitrex) 朝日熱処理工業
  4. Surface hardening method of salt bath soft nitriding "Isonite treatment" [Greatly improves heat resistance] ミリオン化学
  5. 4 Surface effect treatment SP that does not impair the properties of stainless steel. 極東窒化研究所

Nitriding Product List

31~60 item / All 77 items

Displayed results

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.

  • Surface treatment contract service
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

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.

  • Other factory equipment and parts
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

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.

  • Surface treatment contract service
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

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.

  • Surface treatment contract service
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Nitriding Treatment J-Nit (Radical Nitriding Method)

Nitriding Treatment J-Nit (Radical Nitriding)

<Overview> "J-Night" is a new nitriding treatment utilizing plasma, developed based on the theory of plasma nitriding reactions to improve the issues associated with conventional nitriding methods. This nitriding method is suitable for the treatment of high-speed tool steel and alloy tool steel. Its features are outlined below. ★ Six Points of J-Night ★ 1. It hardly changes the surface condition. 2. It can form only a diffusion layer without creating a compound layer. 3. It can minimize dimensional changes significantly. 4. Due to these features, post-processing after treatment is unnecessary. 5. It is a nitriding treatment conducted at temperatures below 500°C. 6. A hard coating can be directly formed on the treated surface using methods such as PVD. These features enhance the wear resistance of molds and machine parts, extend their lifespan, and improve productivity. ★ Benefits of J-Night Treatment ★ - No reduction in hardness or distortion - No polishing required after treatment - No peeling - Composite treatment is possible - Uniform nitriding depth *For more details, please refer to the catalog or contact us. ★ We also accept inquiries for sample coatings ★

  • Surface treatment contract service
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

"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

  • Other surface treatment equipment
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

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

  • Processing Contract
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

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.

  • Other surface treatment equipment
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Hatta Industries Ion Nitriding Treatment

Low-temperature treatment with minimal distortion, no post-processing required.

Using a vacuum furnace to heat and cool metals imparts hardness, toughness, and corrosion resistance. Compared to conventional processing systems, it is clean and safe. It is the best heat treatment method for metal products such as stainless steel and titanium, preventing oxidation without causing unnecessary chemical changes. Ion nitriding is a treatment method that hardens the surface of metals using low-temperature nitrogen ions. It results in minimal distortion, and the process is completed in a short time while maintaining the surface condition of the metal, eliminating the need for additional processing. It also allows for easy composition and control of the nitrided layer, which cannot be achieved with other nitriding methods.

  • Processing Contract
  • Surface treatment contract service
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

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.

  • Surface treatment contract service
  • Cleaning agents
  • Rust Inhibitor
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Kyokuto Nitriding Laboratory Co., Ltd. Business Introduction

We also support nitriding treatment for large parts from mass-produced components.

Kyokuto Nitriding Research Institute Co., Ltd. has specialized in "nitriding treatment" for over 50 years, conducting metal surface hardening and heat treatment for machine parts, aircraft components, and more. Leveraging our unique perspective as a precision machinery manufacturer and the know-how cultivated through rigorous manufacturing processes, we are engaged in research and development of technologies and systems that only we can provide. We aim to contribute widely to society as a company that sincerely tackles any challenges in all fields of machine parts, which are becoming increasingly complex and demanding high precision. 【Business Activities】 ○ Gas nitriding treatment (ordinary nitriding, SP treatment, UN treatment)  SP: SP treatment (special nitriding treatment for stainless steel)  UN: Ulnite (long-time treatment to thicken the nitrided layer) ○ Gas soft nitriding treatment (nitrogen-based) ○ Stress relief annealing treatment ○ Oxidation-free annealing treatment For more details, please contact us or download our catalog.

  • Surface treatment contract service
  • Processing Contract
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Technical book distribution now! Technical book "What is Nitride?"

What is nitriding treatment? A technical book explaining the characteristics of nitriding and gas nitriding treatments, including the relationship between processing time, processing temperature, and hardness.

Nitriding treatment is a chemical surface hardening method of surface hardening heat treatment, which combines with various metal elements to form hard nitrides that harden the surface. The purpose of nitriding treatment is to improve wear resistance, fatigue resistance, corrosion resistance, and heat resistance. The most popular special steel that is easy to nitridize is SACM645 (commonly known as nitriding steel), which contains Al, Cr, and Mo. Other suitable materials for nitriding include chromium-molybdenum steel, nickel-chromium-molybdenum steel, and stainless steel. [Contents] - What is gas nitriding? - History of nitriding - Characteristics of nitriding treatment and gas nitriding treatment as surface hardening processes - About nitriding steel - Relationship between treatment time, treatment temperature, and hardness For more details, please contact us or download the catalog.

  • Processing Contract
  • Surface treatment contract service
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Characteristics of nitriding treatment and gas nitriding treatment as surface hardening processes.

Surface hardening methods in heat treatment. A detailed introduction to the characteristics of each surface hardening treatment method.

Nitriding treatment is classified as one of the surface hardening methods in heat treatment. It is a process in which nitrogen diffused from the surface of steel combines with various metallic elements to form hard nitrides, thereby hardening the surface of the steel. The purpose of nitriding treatment is to improve wear resistance, fatigue resistance, corrosion resistance, and heat resistance. Here, we introduce the characteristics of nitriding treatment and gas nitriding as surface hardening treatments. 【Characteristics of Each Surface Hardening Method (Excerpt)】 ■ Nitriding Depth of hardened layer: ○ / Hardness: ○ / Fatigue resistance: ○ / Deformability: ○ / Wear resistance: ◎ / Spalling resistance: ◎ / Heat resistance: ○ / Corrosion resistance: ○ ■ Carburizing Depth of hardened layer: ◎ / Hardness: ○ / Fatigue resistance: ○ / Deformability: △ / Wear resistance: ○ / Spalling resistance: ○ / Heat resistance: △ / Corrosion resistance: △ ■ Siliconizing Depth of hardened layer: ○ / Hardness: ○ / Fatigue resistance: △ / Deformability: △ / Wear resistance: ○ / Spalling resistance: ○ / Heat resistance: ◎ / Corrosion resistance: ◎ ■ Flame Hardening Depth of hardened layer: △ / Hardness: △ / Fatigue resistance: △ / Deformability: △ / Wear resistance: ○ / Spalling resistance: ○ / Heat resistance: △ / Corrosion resistance: △ *For more details, please download the PDF or feel free to contact us.

  • Surface treatment contract service
  • Processing Contract
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

The relationship between nitriding treatment time, treatment temperature, and hardness.

Introducing the relationship between treatment time/temperature and surface hardness distribution in nitriding treatment.

In the "nitriding treatment" that strengthens the surface of steel, the hardness distribution changes depending on the treatment time and temperature. As the temperature increases, the surface hardness decreases. Additionally, as the treatment time increases, the nitrided layer becomes thicker, generally accompanied by a thicker brittle compound layer. [Features] ■ Hardness distribution changes with treatment temperature and time ■ Surface hardness decreases as temperature increases ■ Nitrided layer becomes thicker with longer time, but hardness does not change much *For more details, please refer to the PDF document or feel free to contact us.

  • Surface treatment contract service
  • Special Steel
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Nitrogen treatment of stainless steel is also effective as an alternative to plating processing.

As an alternative to plating treatment, it is also effective in preventing peeling.

We would like to introduce the "nitriding treatment for stainless steel" conducted at the Far East Nitriding Research Institute, which specializes in nitriding treatment primarily in the Kanto and Tokai areas. Stainless steel is a type of steel that excels in corrosion resistance. During the nitriding process, the entry of nitrogen is hindered by the passive film of chromium oxide on the surface, necessitating an activation treatment. To achieve a stable treatment layer, our company employs a combination of physical removal methods such as shot blasting and chemical removal methods. 【Chemical Removal Methods】 ■ Gas Nitriding Treatment - Does not require ensuring glow discharge - No need for shape, loading amount, or size classification - Provides a stable treatment layer ■ SP Treatment - Has a hardened layer of HV1000 or higher - Processed at lower temperatures than nitriding treatment, resulting in less deformation - Does not reduce corrosion resistance *For more details, please download the PDF or feel free to contact us.

  • Surface treatment contract service
  • Special Steel
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

The difference between gas nitriding treatment and gas soft nitriding treatment.

Introduction to the differences between gas nitriding treatment and gas soft nitriding treatment.

I will introduce the differences between "gas nitriding treatment" and "gas soft nitriding treatment." "Gas nitriding method" is a technique that achieves a high-hardness diffusion layer on the surface of steel through the diffusion of active nitrogen. It is performed on parts that require higher strength and precision, and is often used for high-grade materials such as nitrided steel and die steel. On the other hand, "gas soft nitriding method" was developed as an alternative technology to salt bath nitriding during the time when environmental issues arose from salt bath nitriding. It is used for treating lower-grade materials primarily made of carbon steel. [About gas nitriding] - Material: High-grade steel (SACM, SKH, SKD, SCM, SUP) - Desired structure: Diffusion layer (compounds of Al, Cr, and N) - Depth of hardened layer: Deep (0.1 to 1.0 mm) - Surface hardness: High (HV 700 to 1300) - Treatment time: Long (25 to 200 hours) *For more details, please refer to the PDF document or feel free to contact us.

  • Surface treatment contract service
  • Special Steel
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Nitride Treatment Q&A Collection

Surface hardening treatment to harden the surface of steel! Various Q&A regarding nitriding technology are published.

The "Nitriding Treatment Q&A Collection" introduces nitriding treatment technology, which is one of the surface effect methods for steel through heat treatment, demonstrating effectiveness in improving wear resistance, fatigue resistance, corrosion resistance, and heat resistance. From basic explanations of the treatment process and characteristics to various questions such as "Nitrided steel is a special steel, but what is special steel?" "Can cast iron be nitrided?" "What are the advantages and disadvantages of gas nitriding?" we provide answers. [Contents] ■ What is nitriding treatment ■ Surface hardness and depth of hardness layer ■ Origin of nitriding technology ■ Nitriding treatment process ■ Characteristics of gas nitriding treatment ■ Nitriding treatment Q&A *For more details, please refer to the PDF document or feel free to contact us.

  • Surface treatment contract service
  • Special Steel
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Surface effect treatment SP that does not impair the properties of stainless steel.

(Presentation of technical data) Suitable nitriding treatment for preventing corrosion of solder baths and components! It forms a special nitrided layer with a hardened layer of HV1000 or higher.

SP treatment is an effective process for austenitic stainless steel and is useful for preventing corrosion in soldering equipment and solder baths made from lead-free materials. Traditionally, nitriding treatment for stainless steel typically improves wear resistance but has the drawback of deteriorating corrosion resistance. However, SP treatment can enhance wear resistance without compromising corrosion resistance. **Features of SP Treatment** SP treatment is a type of nitriding process that is effective for austenitic stainless steels (such as SUS304, 310, 316). It forms a special nitrided layer, known as the SP layer, while maintaining a passive film (oxide film). This layer has a different structure from the typical nitrided compound layer. It excels in both wear and corrosion resistance and has the following characteristics: - It has a hardened layer with a hardness of HV1000 or higher. - Corrosion resistance does not decrease (it does not rust even after 30 days of salt spray testing). - It is processed at a lower temperature (below 450°C) than traditional nitriding, resulting in even less deformation. Currently, technical materials on nitriding, titled "What is Nitriding," can be downloaded for free. For more details, please download the catalog or contact us.

  • Surface treatment contract service
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Nitriding treatment to strengthen the machine tool industry and industrial machinery.

[Technical Data Presentation] Nitriding treatment that diffuses nitrogen into the surface of steel, dramatically strengthening the surface of the steel.

Kyokuto Nitriding Laboratory Co., Ltd. has specialized in "nitriding treatment" for over 50 years, conducting metal surface hardening and heat treatment for machine parts, aircraft parts, and more. Leveraging our unique perspective as a precision machinery manufacturer and the know-how cultivated through rigorous manufacturing processes, we are engaged in research and development of technologies and systems that only we can provide. We aim to contribute widely to society as a company that earnestly tackles any challenges in various fields of machine parts, which are becoming increasingly complex and demanding high precision. [Business Activities] - Gas nitriding treatment (ordinary nitriding, SP treatment, UN treatment) SP: SP treatment (special nitriding treatment for stainless steel) UN: Ulnite (long-time treatment to thicken the nitrided layer) - Gas soft nitriding treatment (nitrogen-based) - Stress relief annealing treatment - Oxidation-free annealing treatment We are currently offering downloadable technical materials for "Company Profile" and "What is Nitriding?" For more details, please contact us or download the catalog.

  • Surface treatment contract service
  • Processing Contract
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Nitriding treatment ≪Tuftride, QPQ≫

The classic salt bath soft nitriding treatment, Tuftride, and QPQ treatment are revived here. Significantly improves the sliding characteristics and corrosion resistance of machine parts. Complies with REACH regulations.

1. What is nitriding treatment: Nitriding is a process that involves permeating nitrogen ions into the surface of materials such as steel and titanium alloys to harden them. By allowing nitrogen ions to penetrate the metal, nitrides of the added elements in the base material (Cr, Al, Mo) are formed (CrN, AlN, Mo2N), creating a hard compound layer. The hardness of this compound layer depends on the amount of these additives, exceeding Hv1200 in alloy steels. There are methods that utilize salt baths, gas atmospheres, or ion environments. 2. Characteristics of salt bath soft nitriding treatment: - Unlike carburizing and high-frequency quenching, there is minimal deformation after treatment, eliminating the need for subsequent polishing. - There is no reduction in fatigue strength after treatment, as seen with hard Cr plating or zinc plating. Nitriding treatment not only improves resistance to galling, wear, and corrosion but also enhances fatigue strength. - In gas and ion nitriding, for complex-shaped parts, gases and ions may not circulate uniformly along the part's shape, leading to uneven nitriding. In a salt bath, abundant nitriding ions circulate uniformly over the entire surface of the part, forming a consistent nitriding layer. A dense and tough nitrided compound (ε-iron nitride) layer improves sliding properties. A porous layer of a few micrometers at the very surface retains lubricating oil, ensuring favorable sliding conditions. 3. Characteristics of Tuftride and QPQ: - Compliant with REACH regulations, zero use of toxic substances, and zero wastewater (all solid waste).

  • 廃液ゼロの生産ライン.jpg
  • タフトライド生産ライン.jpg
  • インコネルのタフトライド処理.jpg
  • ガススプリング.png
  • コモンレールシステムのカム.png
  • クランクシャフト.jpg
  • ブレーキパッドのバックキングプレート.jpg
  • ディスクブレーキ.jpg
  • ブレーキピストン.jpg
  • Other Auto Parts
  • gear
  • shaft
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Technical Explanation Document for Salt Bath Soft Nitriding "Tuftride Treatment / QPQ Treatment"

REACH regulation compliant! Reducing environmental impact with a unique salt bath agent. Also reduces disposal costs.

The "Tuftride treatment" is a salt bath soft nitriding process that uses a uniquely developed salt bath agent, compliant with the European environmental regulation "REACH." Compared to gas soft nitriding processes that use ammonia gas, it significantly reduces environmental impact. It offers many advantages in surface processing, such as improved wear resistance, corrosion resistance, and seizure resistance, and is adopted by major automobile manufacturers for shafts and ball screws, as well as by construction equipment manufacturers for hydraulic pistons. ★ We are currently offering a technical explanation document for free ★ [Contents of the document] ■ What is Tuftride treatment and QPQ treatment ■ Composition and thickness of the nitrided layer ■ Improvement of component characteristics and mechanical sliding properties ■ Plant technology ■ Consideration for the environment, etc. * The technical explanation document can be viewed via the download button below.

  • 廃液ゼロの生産ライン.jpg
  • タフトライド生産ライン.jpg
  • インコネルのタフトライド処理.jpg
  • ガススプリング.png
  • コモンレールシステムのカム.png
  • クランクシャフト.jpg
  • ブレーキパッドのバックキングプレート.jpg
  • ディスクブレーキ.jpg
  • ブレーキピストン.jpg
  • Surface treatment contract service
  • Processing Contract
  • Other surface treatment equipment
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

REACH regulation compliant 'Salt Bath Soft Nitriding Treatment Technology (CLIN Process)'

Improved wear resistance, corrosion resistance, and seizure resistance. Performance data will be provided.

The "Salt Bath Soft Nitriding Treatment Technology (CLIN Process)" is a technique that applies soft nitriding and oxidation thermochemically, strengthening the surface of iron materials with nitrogen and a small amount of carbon in a salt bath. It has a low environmental impact, compliant with REACH regulations, and can be used as an alternative to chrome plating. It contributes to improving wear resistance, seizure resistance, corrosion resistance, and fatigue strength in various products such as gas springs, hydraulic cylinders, and brake pistons. We are currently offering explanatory materials that introduce successful alternatives to chrome plating! 【Features】 ■ Closed treatment with no wastewater ■ Excellent corrosion resistance ■ Widely adopted by major automobile manufacturers and construction equipment manufacturers *The materials can be viewed immediately via "PDF Download." Please feel free to contact us for inquiries.

  • Surface treatment contract service
  • Processing Contract
  • Other surface treatment equipment
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Salt Bath Soft Nitriding Treatment Technology (CLIN Process) *Suitable for Home Appliances

For washing machine shafts, tubes, etc. Can impart corrosion resistance and friction/wear properties. Complies with REACH regulations.

The "Salt Bath Soft Nitriding Treatment Technology (CLIN Process)" is a technique that applies soft nitriding and oxidation thermochemically, strengthening the surface of iron materials with nitrogen and a small amount of carbon in a salt bath. It has a low environmental impact, compliant with REACH regulations, and provides excellent corrosion resistance. When applied to steel components, it can be used as a substitute for stainless steel. It also has high compatibility with sealing materials and is suitable for home appliances such as washing machine shafts and tubes, as well as in the automotive and military fields. 【Features】 ■ Alternative to chrome plating and gas soft nitriding treatment ■ Reduces friction, contributing to lower power consumption ■ No concerns about peeling that exposes the target material ■ Excellent treatment uniformity *For more details, please refer to the materials. Feel free to contact us with any inquiries.

  • Surface treatment contract service
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Nitride treatment for differential components

Improvement of mechanical strength and wear resistance! Salt bath soft nitriding treatment technology suitable for differential components.

We would like to introduce HEF's salt bath soft nitriding treatment technology suitable for differential components. The nitrided layers generated during the treatment (mainly the diffusion layer) improve mechanical strength and fatigue strength. Additionally, the compound layer formed during the treatment and its surface condition enhance wear resistance. The application and mass production of salt bath soft nitriding treatment for various differential components are progressing, and we have a track record of applications such as "application to differential cases" and "application to differential shafts." Please feel free to contact us when needed. 【Features】 ■ Improvement of mechanical strength ■ Improvement of wear resistance ■ Reduction of treatment costs (compared to electroless Ni plating) *For more details, please refer to the PDF materials or feel free to contact us.

  • Other Auto Parts
  • Engine parts
  • Processing Contract
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

ECO-CLIN

Achieving a circular economy with CLIN (salt bath soft nitriding treatment) in industrial waste recycling! Eliminating concerns about raw material procurement.

We would like to introduce the 'ECO-CLIN Process' developed by the HEF Group. This technology allows for the recycling of wastewater and solid waste generated from the gas nitriding treatment line, directly converting it into regenerated treatment salt. At the HEF Group's upcycling sites and Green Centers established around the world, this system minimizes the impact of gas nitriding treatment on the natural resource market while alleviating concerns over raw material procurement. 【Targets】 ■ Ensuring the sustainability of salt bath nitriding treatment technology ■ Achieving zero mineral waste emissions from the nitriding treatment line ■ Minimizing the impact of fluctuations in raw material market conditions ■ Reducing the carbon footprint of salt bath nitriding treatment technology *For more details, please refer to the PDF document or feel free to contact us.

  • Surface treatment contract service
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Air Water Inc. Company Introduction

Turning the impossible into possible with technology born from years of accumulated know-how in the gas business!

Energy conservation, miniaturization, and low fuel consumption are sought after in 21st-century society, along with securing resources and maintaining the environment, while technological innovation is advancing at a rapid pace. In the field of surface treatment, customer demands are diversifying, and new technologies are required. Our NV process aims to provide products that respond to various changes from our customers and to support problem-solving and new development in collaboration with them. 【Business Content】 ■ Metal surface treatment ■ Sale of technology and know-how related to metal surface treatment *For more details, please refer to the PDF document or feel free to contact us.

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

[Proprietary Technology] Performance and Power of NV Nitride

With low-temperature nitriding, surface roughness and thermal distortion after nitriding treatment can be minimized! The thickness of the compound layer can be controlled.

We will introduce the performance and effectiveness of "NV Nitriding." It provides a hardened layer with excellent wear resistance for various materials. Additionally, with low-temperature nitriding, surface roughness and thermal distortion after nitriding treatment can be minimized, making it suitable for mass nitriding of precision parts and thin plate products, while allowing control over the thickness of the compound layer without sacrificing the hardened layer. 【Performance and Effectiveness】 ■ Wide range of applicable steel types - Provides a hardened layer with excellent wear resistance for various materials. - Generates a very dense and uniform compound layer with minimal porosity. ■ Performance of low-temperature treatment - Low-temperature nitriding minimizes surface roughness and thermal distortion after nitriding treatment, making it suitable for mass nitriding of precision parts and thin plate products. ■ Control of nitriding layer - Allows control over the thickness of the compound layer without sacrificing the hardened layer. *For more details, please refer to the PDF document or feel free to contact us.

  • Processing Contract
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Japan Parkarizing Co., Ltd. Business Introduction

Creating the world of tomorrow. Leave metal surface treatment and surface modification to us.

Nihon Parkalizing Co., Ltd. has adopted the founder's principle of "valuing limited resources..." as its management philosophy, and has positioned itself as a technology-oriented company. Since its establishment, it has dedicated itself to research and development, making it its business to provide technology that protects metals from corrosion and wear. Now, with the aim of "creating new value" by not only preventing corrosion but also imparting functions to the surfaces of materials, we will continue to develop functions that meet the diverse needs of our customers. 【Business Activities】 ○ Metal heat treatment and surface processing ○ Sales of metal surface treatment agents ○ Outsourcing processing For more details, please contact us or download the catalog.

  • Surface treatment contract service
  • Processing Contract
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Gas Soft Nitriding Treatment (SN Process)

For improving the wear resistance, fatigue strength, and sliding performance of steel materials, gas soft nitriding treatment is recommended.

This is an introduction to the gas soft nitriding treatment (SN process) conducted by our company. When gas soft nitriding is performed, a compound layer (ε layer) of about 5μm to 20μm is formed on the metal surface. This compound layer consists of a layer made of nitrides and carbides, and the gas soft nitriding treatment is conducted in an atmosphere that contains not only nitrogen atoms but also carbon atoms. Furthermore, inside this compound layer, a layer of nitrides called the diffusion layer is formed, and these compound and diffusion layers enhance the wear resistance, fatigue strength, and sliding performance of steel material components. For this reason, it can be said that this is a widely used surface heat treatment for automotive parts, electronic components, general industrial equipment, molds, and more. 【Features】 ■ Shapes that are unsuitable for salt bath nitriding or plasma nitriding, such as deep holes and slits, can be easily treated. ■ The surface has a clean, milky white finish without the adhesion of impurities or oxide films. ■ Easily applicable from small lots to mass production, for both small and large parts. ■ Improvement of mechanical properties: enhanced wear resistance (effect of high hardness and low friction coefficient of the compound layer). *For more details, please refer to the PDF document or feel free to contact us.

  • Other Auto Parts
  • Other surface treatment equipment
  • Surface treatment contract service
  • Nitriding

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Precision low-temperature nitriding treatment (PSN treatment)

Introduction of precision low-temperature nitriding treatment targeting stainless steel precision parts and precision molds developed by our company.

The precision low-temperature nitriding treatment (PSN treatment) is a precision low-temperature nitriding process developed by our company, targeting stainless steel precision parts and precision molds. It is a groundbreaking treatment method that uses specially formulated plastic raw materials as a nitriding source. This method allows for effective utilization of raw materials and has minimal environmental impact. Currently, we are researching and developing a method to harden austenitic stainless steel without compromising its corrosion resistance, which is a global theme. 【Features】 ■ Easy nitriding treatment of stainless steel ■ Low-temperature treatment (400°C to 530°C) minimizes dimensional changes and deformation ■ Composite treatments can be easily performed, allowing for subsequent processes such as shot peening and PVD treatment, enabling improvements through synergistic effects ■ Improvement of mechanical properties - Enhanced wear resistance, fatigue strength, and heat resistance ■ Improved release properties in resin molds *For more details, please refer to the PDF document or feel free to contact us.

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

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Search Keywords Related to Nitriding