We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for Metal Heat Treatment.
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Metal Heat Treatment Product List and Ranking from 18 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

Metal Heat Treatment Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. 桜井興産 桜井興産株式会社 Aichi//Manufacturing and processing contract
  2. 丸眞熱処理工業 Yamanashi//Manufacturing and processing contract
  3. 浜松熱処理工業 Shizuoka//Manufacturing and processing contract
  4. 4 NPO諏訪圏ものづくり推進機構 Nagano//others
  5. 4 南信熱錬工業 Nagano//Machine elements and parts
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Metal Heat Treatment Product ranking

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. From structural special steel to nuclear-related materials, we can handle a variety of metal heat treatments. 桜井興産 桜井興産株式会社
  2. Metal Heat Treatment: Heating Treatment of SUJ2 Round Bars by μ High-Frequency Quenching 丸眞熱処理工業
  3. Sakurai Kousan Co., Ltd. Company Profile 桜井興産 桜井興産株式会社
  4. Business activities 南信熱錬工業
  5. 4 Marushin Heat Treatment Co., Ltd. Business Introduction: "Metal Heat Treatment" 丸眞熱処理工業

Metal Heat Treatment Product List

16～30 item / All 31 items

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Glossary of Terms for Metal Heat Treatment: Explanation of 7 Types of Metal Heat Treatment!

Glossary of Terms for Metal Heat Treatment: Explanation of 7 Types of Metal Heat Treatment!

"Annealing," also known as "softening," will unravel the "mystery" of heat treatment when you read this!

Our company explains seven types of metal heat treatment. We introduce processes such as "quenching and tempering," "sub-zero treatment," "high-temperature tempering," and "aging treatment." Reading this will unravel the "mysteries" of heat treatment. Please take a moment to read it. 【Contents (partial)】 ■ Quenching and tempering ■ High-temperature tempering ■ Sub-zero treatment ■ High-temperature tempering ■ Stress relief *For more details, please refer to the PDF document or feel free to contact us.

  • Other surface treatment equipment
  • Contract manufacturing

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[Case Study] Development of Special Material Quenching Technology 'DF Quench'

[Case Study] Development of Special Material Quenching Technology 'DF Quench'

Newly developed heat treatment method "DF Quench"! It has been commercialized after undergoing various mechanical tests.

Here is a case study solved by Kuniyu Thermal Engineering. For the steel materials used in seismic reinforcement hardware for large buildings, simply applying standard heat treatment was insufficient to balance the mechanical properties at a high level. Additionally, considering the carbon equivalent from the perspective of welding and construction, the available steel materials were limited, and we received a request asking if we could find a solution. Since the customer had already considered various means, our company designed a microstructure that could meet the requirements. We newly developed a heat treatment method called "DF Quench" to realize that microstructure, and after various mechanical tests, we were able to commercialize the product. [Case Study] ■ Solution Points - Improved strength of seismic reinforcement hardware for large buildings - Developed new technology that could not be solved with standard heat treatment! ■ Technology Used - Dual-phase quenching "DF Quench" *For more details, please refer to the PDF document or feel free to contact us.

  • Other surface treatment equipment
  • Surface treatment contract service

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Marubishi Electronics Co., Ltd. Business Introduction

Marubishi Electronics Co., Ltd. Business Introduction

JISQ9100:2009 certified company! Leave it to the experts in metal heat treatment.

Marubishi Electronics Co., Ltd. offers metal heat treatment processing. We accommodate everything from precision parts to large items over 10 tons. We also handle single items and lot management with short delivery times. While constantly honing our technology, we utilize traditional techniques and advanced technologies to meet our customers' needs, so please feel free to consult us when you have requests. 【Business Items】 ■ High-frequency hardening and carbon hardening ■ Carbon nitriding hardening ■ Gas soft nitriding and gas nitriding ■ Bright hardening ■ Frame hardening and solidification, etc. *For more details, please download the PDF or feel free to contact us.

  • Steel
  • Other metal materials
  • Other machine elements

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Introduction to the "Heat Treatment Technology" Materials

Introduction to the "Heat Treatment Technology" Materials

A document featuring heat treatment technology that breathes life into metals!

This document provides an overview of heat treatment technology offered by the Japan Metal Heat Treatment Association. Metal heat treatment is a processing technology that improves the properties of metal materials through a combination of heating and cooling without changing the shape of the product. Among the metal materials subjected to heat treatment, iron has been the most widely used, and non-ferrous alloys (such as aluminum alloys and titanium alloys) are also subjected to heat treatment. [Contents] ■ Types of metal heat treatment processes - General heat treatment (heat treating the entire product) - Surface heat treatment (heat treating only the surface) ■ Heat-treated products commonly used in automobiles ■ Everyday heat-treated products *For more details, please download the PDF or feel free to contact us.

  • Contract manufacturing
  • Processing Contract

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[Proposal / Solution Case] Product Distortion

[Proposal / Solution Case] Product Distortion

Case Study 2: "Improving mechanical properties leads to strain."

We would like to introduce a case study of metal heat treatment that our company proposed. The inquiry was about preventing significant "distortion" in parts with uneven wall thickness, which was causing residual scale during subsequent machining processes. The greater the temperature difference within the product during heating and cooling, the more significant the "distortion" that occurs after heat treatment. Our company ensures that the entire product is uniformly heated and cooled by aligning and setting the products for heat treatment, whether in continuous furnace processing or batch furnace processing. [Case Study] ■ Issue Significant "distortion" in parts, leading to residual scale during subsequent machining processes. ■ Solution Conducting heat treatment by aligning and setting the products to ensure uniform heating and cooling of the entire product. *For more details, please feel free to contact us.

  • Processing Contract
  • Other machine elements

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Logic processing

Logic processing

It is our unique technology that bridges the gap between "soft nitriding" and "carburizing hardening (carburizing nitriding)."

This technology is an ultra-low temperature carburizing and nitriding quenching process that achieves both low distortion and high strength through our unique atmosphere/temperature control technology. It has lower distortion than carburizing and nitriding and higher strength than soft nitriding. It allows for a significant increase in strength compared to conventional soft nitriding. It addresses issues such as insufficient strength in conventional soft nitriding and excessive thermal distortion in conventional carburizing (carburizing and nitriding). 【Features】 ■ Lower distortion than carburizing quenching ■ Higher strength than soft nitriding ■ Improved internal hardness ■ Capable of bridging the gap between "soft nitriding" and "carburizing quenching (carburizing and nitriding)" ■ Achieves both low distortion and high strength *For more details, please refer to the PDF document or feel free to contact us.

  • others

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LODIC (Logic) processing

LODIC (Logic) processing

Lower distortion than carburizing nitriding, higher strength than soft nitriding! Ultra-low temperature carburizing nitriding hardening treatment.

LODIQ (Low Distortion Quenching) is our unique surface heat treatment method that fills the gap between "soft nitriding" and "carburizing hardening (carburizing nitriding)." It addresses issues such as "normal soft nitriding does not provide sufficient strength" and "normal carburizing (carburizing nitriding) results in excessive thermal distortion." Additionally, while maintaining the low distortion characteristics of LODIQ, we have achieved an increase in the strength of alloy steel with "LODIQ-AS," and we also offer "LODIQ-N," which allows for arbitrary changes in the compound layer composition to enable strengthening according to specific objectives. **Characteristics of LODIQ-AS** - Significantly reduces heating distortion and hardening distortion through ultra-low temperature treatment. - Increases resistance to temper softening of the re-surface, improving anti-seizing and anti-pitting properties. - Enhances effective hardened layer depth, internal hardness, and fatigue strength for low carbon steel LODIQ. - Enables the omission of finishing processes due to the suppression of abnormal grain boundary oxidation layers and the low distortion effect. *For more details, please download the PDF or feel free to contact us.*

  • LODIQ2.jpg
  • LODIQ3.jpg
  • Processing Contract

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Minimal distortion, maximum material properties! Heat treatment in Osaka! [Vacuum Heat Treatment]

Minimal distortion, maximum material properties! Heat treatment in Osaka! [Vacuum Heat Treatment]

We specialize in the heat treatment of die steel for metal press molds, optimally controlling the heating and cooling processes to accommodate various shapes.

Since our establishment, we have specialized in the heat treatment of die steel for metal press molds, effectively controlling the heating and cooling processes to accommodate various shapes. We offer vacuum hardening that minimizes distortion in complex three-dimensional automotive molds while maximizing the material's properties. Additionally, our vacuum heat treatment furnace can manage the temperature distribution inside the furnace with extremely high precision, making it ideal for heat treatment of precision parts. Please feel free to contact us if you have any requests. If you need heat treatment in Osaka, the Kansai region, or the Kinki region, do not hesitate to reach out! 【Features】 ■ Minimal distortion ■ Achieves traceable heat treatment ■ Supports everything from large molds to precision parts ■ Capable of handling small lots (starting from one piece) ■ Short delivery times *For more details, please download the PDF or feel free to contact us.

  • Processing Contract

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Marushin Manufacturing Co., Ltd.

Marushin Manufacturing Co., Ltd.

Specialized contractor for metal heat treatment and metal surface hardening.

We are specialists in metal heat treatment and metal surface hardening processes. If you have any issues related to metals, please feel free to consult us. Areas of Expertise: Various heat treatments for mass-produced items, heat treatments for precision tools and molds, heat treatments for precision small parts (e.g., 1mm x 1mm x 1mm or smaller), ion plating for high-load molds and low-temperature conditions. Products and Services: Vacuum heat treatment, general heat treatment, carburizing treatment, gas soft nitriding treatment, super nitriding treatment, MX treatment, ion plating treatment, MX-IP treatment, various brazing, machining. Main Processed Products: Automotive parts, precision parts for home appliances, office automation, and IT, tools and molds, welding units for welding robots, torque drivers.

  • others

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Okaya Heat Treatment Co., Ltd.

Okaya Heat Treatment Co., Ltd.

Vacuum treatments such as hardening, tempering, and annealing.

Vacuum treatments such as quenching, tempering, and annealing, as well as sub-zero treatments, are available. We also perform vacuum carburizing, vacuum carburizing nitriding, shot peening, and surface treatments like coating (ion plating), assisting in improving the quality and extending the lifespan of various products such as molds, cutting tools, automotive parts, and machine components. Areas of Expertise: - Bright quenching that minimizes dimensional changes - Vacuum carburizing and vacuum carburizing nitriding that enable uniform carburizing of complex shapes without surface grain boundary oxidation or carburizing unevenness - Coatings with rich film properties enhanced by ON lapping treatment for improved smoothness and adhesion - Integrated processing from heat treatment to surface modification and surface treatment, improving toughness, wear resistance, release properties, corrosion resistance, and sliding properties, thereby extending the lifespan of molds and cutting tools through ON treatment Product Offerings: Metal heat treatment (vacuum heat treatment), sub-zero treatment, vacuum carburizing and vacuum carburizing nitriding, coating (ion plating), ON treatment, precision shot peening, lapping treatment.

  • others

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TONEZ Corporation

TONEZ Corporation

Heat treatment specialist

Over a century of dedication to heat treatment. The technology and quality we have built at TONEZ have been pursued since our founding in 1909, specializing in the heat treatment of metals. Utilizing the technical skills we have honed over many years, we are now proud to receive solid evaluations across a wide range of fields, from automotive parts to precision small components, large materials measuring over ten meters in length and weighing several tons, and even aerospace components that require extremely high precision. In terms of quality, we have obtained "ISO 9001" and "JIS Q 9100" certifications, establishing a world-class quality management system.

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Sakurai Kousan Co., Ltd. Company Profile

Sakurai Kousan Co., Ltd. Company Profile

A large furnace capable of handling various shapes and materials for heat treatment has been installed. For finished parts, a vacuum furnace with pressurized gas quenching and a high-performance non-oxidizing furnace are available.

Sakurai Kousan consistently pursues "high precision, high quality, low cost, and short delivery times" based on the heat treatment technology and know-how cultivated over many years of tradition. We respond to increasingly complex and diverse customer needs to the fullest extent. We have installed large furnaces capable of heat treatment for various shapes and materials, including a mass production continuous furnace that accommodates round steel bars up to 12 meters in length, and large items weighing up to 5 tons, as well as small items measured in grams. We are always looking to the future of metal heat treatment and continue to be at the forefront of technology and equipment. Additionally, in 2006, we simultaneously acquired ISO 9001 and ISO 14001 certifications. 【Product Offerings】 ■ General Heat Treatment: Hardening and Tempering, Annealing, Normalizing, Spheroidizing Annealing, Solution Treatment, Carburizing Hardening and Tempering, Gas Nitriding, Carburizing Nitriding, Vacuum Hardening, Vacuum Annealing, Oxidation-Free Annealing and Normalizing ■ Straightening (Distortion Removal) ■ General Materials: Round Steel, Shaped Steel, Pipes, Coils, Cast and Forged Steel Products, High Alloy Steel ■ General Products: Molds, Automotive Parts, Construction Machinery Parts, and Other Machined Parts *For more details, please refer to the related links or feel free to contact us.

  • Other services

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From structural special steel to nuclear-related materials, we can handle a variety of metal heat treatments.

From structural special steel to nuclear-related materials, we can handle a variety of metal heat treatments.

Establishing a processing capacity of 100 tons per day! With over 90 years of experience and our unique heat treatment technology, we can offer proposals and responses tailored to various needs.

At Sakurai Kousan, we conduct general metal heat treatment processing. In our headquarters factory and materials division, we have a wide range of equipment, including continuous quenching furnaces for round bars and tempering furnaces with excellent temperature distribution that use city gas as a heat source, as well as batch-type annealing and normalizing furnaces, quenching furnaces, and solution treatment furnaces for stainless steel. We are capable of handling a variety of heat treatments, from structural special steels to nuclear-related materials, and we also flexibly accommodate heat treatment for not only round bar materials but also small forged items such as screws and bolts. Additionally, we actively promote the rationalization and acceleration of our production system, with advancements in automation. Our Arako factory, which operates 24 hours a day, meets mass production needs and has established a processing capacity of 100 tons per day. With a continuous heat treatment furnace measuring 38 meters in length, we can process round bars up to 8 meters long under various conditions, including annealing, spheroidizing annealing, and normalizing. Furthermore, we utilize state-of-the-art batch-type quenching and tempering furnaces to accommodate products that require very stringent temperature control, such as large molds and forged steel components related to oil drilling. *For more details, please download the PDF or contact us.*

  • Heating device

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[Metal Heat Treatment Guide] What is Annealing?

[Metal Heat Treatment Guide] What is Annealing?

Introducing "tempering," which increases strength and ductility and is also used as a preliminary treatment for quenching.

"Annealing" is a heat treatment that removes internal stresses caused by processing, restores the structure to a standard state, and refines it. By performing annealing, strength and ductility are increased, making it useful as a preliminary treatment for quenching. Additionally, steel is held in the austenite structure for a sufficient period and then cooled adequately in air. 【What is Annealing】 ■ Removes internal stresses caused by processing ■ Restores the structure to a standard state or refines it ■ Steel is held in the austenite structure for a sufficient period and then adequately cooled in air *For more details, please refer to the PDF document or feel free to contact us.

  • Heating device

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Metal Heat Treatment Guide: What is Nitriding?

Metal Heat Treatment Guide: What is Nitriding?

Surface hardening treatment for steel materials and titanium alloys! An introduction to the basics of heat treatment.

"Nitridization (nitriding)" refers, in a broad sense, to the overall process of permeating nitrogen into metals. In a narrow sense, it refers to surface hardening treatments for steel materials and titanium alloys. [Metal Heat Treatment (Excerpt)] ■ Quenching ■ Tempering ■ Annealing ■ Normalizing ■ High-Frequency Quenching ■ Carburizing ■ Shot Peening *For more details, please refer to the PDF document or feel free to contact us.

  • Heating device

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