Daido Steel

What Daido Steel does

Daido Steel Co., Ltd. is a Japanese special steel manufacturer founded in 1950 and headquartered in Nagoya, listed on the Tokyo Stock Exchange with 10,000+ employees and operations across Japan, Vietnam, and Thailand. The company produces a broad portfolio spanning structural steel, stainless steel, tool steel and mold materials (including the DHA-GIGA ultra-large die casting and S-STAR plastic mold grades), high alloys, strip steel, titanium alloys, shape memory alloys, alloy powder for additive manufacturing, thin film targets, soft magnetic materials, permalloy foil, and isotropic SmFeN bonded magnets. These materials feed downstream into die forgings, precision components, and industrial furnaces such as the STC line and the newly commercialized STARQ electric furnace for steelmaking CO2 reduction.

Daido serves a diversified B2B customer base across automotive (including EV motors and magnets), aerospace, energy and power generation, industrial tools and manufacturing, semiconductor capital equipment, and medical devices. Revenue mechanics are anchored in direct enterprise sales to industrial OEMs, with proprietary quotation handling rather than published pricing. The company operates its own sales offices in Nagoya and Tokyo for the domestic market and wholly-owned manufacturing and sales subsidiaries in Ho Chi Minh City (Vietnam, opened October 2023) and Bangkok (Thailand, opened July 2022) for ASEAN growth-market coverage.

Recent strategic activity reflects a pivot toward growth verticals and decarbonization. Daido announced a tender offer for Tohoku Special Steel (May 2026) to consolidate domestic capacity, completed delivery of its STARQ electric furnace to JFE Steel (June 2026), achieved a 78% CO2 reduction hydrogen-DRI breakthrough with Vallourec (April 2026), and entered EV motor rotor co-development with NHK Spring (May 2026). It also expanded its SmFeN rare-earth-reduced bonded magnet lineup and continues to invest in semiconductor manufacturing equipment materials. The company holds ISO 9001 and ISO 14001 certifications across all factories and group manufacturing entities, and transitioned to an Audit & Supervisory Committee governance structure in June 2022.

Name

Daido Steel

Legal name

Daido Steel Co., Ltd. (大同特殊鋼株式会社)

Website

https://daido.co.jp

Company type

Public

Founded year

1950

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Daido Steel is a Japanese special steel manufacturer producing structural, tool, stainless, and high-alloy steels, magnetic materials, titanium alloys, and forged components for automotive, aerospace, energy, semiconductor, and industrial machinery customers, with manufacturing operations in Japan, Vietnam, and Thailand.

Ownership category

akta.pro rank

Product category

Specialty Steel Manufacturing

NAICS

Iron and Steel Mills and Ferroalloy Manufacturing (3311), Steel Product Manufacturing from Purchased Steel (3312), Plate Work and Fabricated Structural Product Manufacturing (33231)

SIC

Miscellaneous Primary Metal Products (3390), Miscellaneous Fabricated Metal Products (3490)

akta.pro primary industry

Specialty & Alloy Steel (Stainless, Tool Steel, Electrical Steel, High-Strength/HSLA) (IMAKABAJ)

akta.pro secondary industries

Coated & Plated Steel (Galvanized, Galvalume, Tinplate, Electrogalvanized, Color-Coated) (IMAKABAG), Metal Forming & Fabrication Machines (Presses, Bending, Shearing, Stamping) (IMAHADAC)

Keywords

• Specialty steel manufacturing
• Tool steel materials
• Bonded magnets production
• Precision forgings
• Industrial furnace systems

Headquarters

HQ city

Nagoya

HQ country

Japan

HQ region

Asia

Offices8 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Special Steel Products: Manufacture and sale of special steel products including structural steel, stainless steel, tool steel, high-speed steel, and high alloys to industrial manufacturers
2. Forged Products and Components: Die forgings, structural forgings, and precision components for automotive, aerospace, and industrial applications
3. Magnetic Materials and Electronic Materials: Soft magnetic materials, SmFeN bonded magnets, permalloy foil, thin film targets for electronics and electric motor applications
4. Industrial Equipment: Industrial furnaces and environmental equipment including the STARQ electric furnace for steelmaking CO2 reduction

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Daido Steel manufactures and sells specialty steel products including structural steel, stainless steel, tool steel, high-speed steel, high alloys, strip steel, precision forgings, alloy powders, welding materials, titanium and shape-memory alloys, soft magnetic materials, SmFeN bonded magnets, permalloy foil, thin film targets, and industrial furnaces (STARQ electric furnace, STC furnace). These are supplied to industrial manufacturers in the automotive, EV, aerospace, energy, semiconductor, industrial machinery, and medical device sectors through direct sales and overseas subsidiaries.

Product overview

Daido Steel is a comprehensive special steel manufacturer offering a broad portfolio of specialty steel products and advanced materials. The company operates a platform-based approach with core steel products (structural steel, stainless steel, tool steels, high alloys, strip steel) complemented by finished components (forgings, alloy powders, welding materials) and advanced materials (titanium alloys, soft magnetic materials, bonded magnets including rare-earth-free SmFeN technology, thin film targets). Supporting products include industrial furnaces (STC furnaces) and LED lighting. The product lineup serves diverse sectors including automotive, aerospace, railways, ships, industrial machinery, medical devices, digital electronics, energy, and semiconductor manufacturing.

Differentiator

Problem solved

Functional benefit

Products and services

• Structural Steel (構造用鋼) Special structural steel products used in automotive, railway, shipbuilding, and industrial machinery applications.
• Stainless Steel (ステンレス鋼) Corrosion-resistant stainless steel materials for various industrial and consumer applications.
• Tool Steel and Mold Materials (工具鋼・金型材料) High-performance tool steels including DHA-GIGA (ultra-large die casting mold steel) and S-STAR (high-hardness, ultra-mirror finish corrosion-resistant plastic mold steel) for precision manufacturing and moldmaking.
• High Alloys (高合金) High-alloy specialty steels for demanding applications in aerospace, energy, and industrial sectors.
• Strip Steel (帯鋼) Specialty strip steel products for various industrial applications.
• Forgings (素形材製品) Precision forged components and structural forgings for automotive, industrial machinery, and infrastructure applications.
• Die Forgings (型鍛造品) Die forgings for automotive, industrial machinery, and infrastructure applications.
• Alloy Powder (合金粉末) Metal powders for additive manufacturing, powder metallurgy, and thermal spray applications.
• Welding Materials (溶接材料) Specialty welding consumables and materials for industrial welding applications.
• Titanium Alloys and Shape Memory Alloys (チタン合金・形状記憶合金) Titanium alloys and shape memory alloys for aerospace, medical, and industrial applications.
• Thin Film Targets (薄膜ターゲット) Sputtering targets for thin film deposition in semiconductor and electronics manufacturing.
• Industrial Furnaces and Environmental Equipment (工業炉・環境設備) Industrial heating equipment including STC furnaces for steel processing, and environmental systems for manufacturing facilities.
• STC Furnace (STC炉) New STC industrial furnace model combining energy savings and environmental performance for steel processing customers.
• Soft Magnetic Materials (軟磁性材料) Soft magnetic materials for electrical equipment, motors, and transformer applications.
• Permalloy Foil (パーマロイ箔) High-permeability permalloy foil for magnetic shielding and electronic applications.
• Isotropic SmFeN Bonded Magnets (等方性SmFeNボンド磁石) Rare-earth-free bonded magnets using samarium-iron-nitrogen technology that complement neodymium-based bonded magnets for various motor and electronics applications.
• Point Light LED (点光源LED) LED point light sources for lighting applications.
• Semiconductor Manufacturing Equipment Materials (半導体製造装置用材料) Specialty materials for semiconductor manufacturing equipment.
• Electric Furnace STARQ (電気炉STARQ) Electric furnace system for steel production that contributes to CO2 emissions reduction in steelmaking processes, supplied to JFE Steel's East Japan Works (Chiba area).
• Next-Generation Motor Rotors for EVs (次世代モーター向けローター) Next-generation motor rotors for electric vehicles co-developed with NHK Spring, utilizing hot-formed magnets with enhanced shape flexibility to meet diverse EV drive motor needs.

Quantifiable outcome

• 78% CO2 reduction in wellhead forging production through hydrogen-DRI breakthrough
• +1 more outcomes

Named customers3 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered core.

• JFE Steel CorporationcoreStrategic or Co-development Partner · 1 June 2026Supply of STARQ electric furnace to JFE Steel East Japan Works (Chiba area), contributing to CO2 emission reduction in steelmaking process through innovative electric furnace technology.
• NHK Spring Co., Ltd. (Nippatsu)coreStrategic or Co-development Partner · 13 May 2026Joint development of next-generation motor rotors for electric vehicles, utilizing hot-formed magnet technology to create shape freedom for new value creation in EV drive motors.
• ValloureccoreStrategic or Co-development Partner · 23 April 2026Hydrogen-DRI breakthrough collaboration achieving 78% CO2 reduction in wellhead forging production. This partnership demonstrates Daido Steel's technology development for decarbonization in the oil and gas equipment sector.

Scale indicators8 records

Recent moves7 records

Expansion highlights7 records

Direct peers

• Allegheny Technologies (ATI): US-based specialty materials producer in nickel-based alloys, titanium, and high-performance steel. Direct competitor in aerospace and energy-grade specialty alloys.
• Voestalpine: Austrian specialty steel producer with leading position in tool steel and high-speed steel. Co-holder of ~41% global die steel market share with Daido Steel; directly comparable product mix and end markets.
• Swiss Steel Group: European specialty steel manufacturer focused on tool steel, stainless steel, and engineering steel. Direct peer in die steel market and similar customer base in automotive and industrial machinery.
• Kennametal: US-based manufacturer of tungsten carbide tooling and high-speed steel products. Competes with Daido in cutting tool materials and wear-resistant industrial consumables.
• Hitachi Metals: Japanese specialty steel and magnetic materials manufacturer. Direct competitor in tool steel, high-speed steel, and rare-earth magnets; named alongside Daido as a key player in the global magnetic materials market.
• Nachi-Fujikoshi: Japanese competitor in high-speed steel, cutting tools, and bearings. Overlapping product portfolio and customer base in industrial machinery and automotive sectors.
• TDK Corporation: Japanese electronic materials and magnetic materials giant. Direct competitor in soft magnetic materials and bonded magnets for EV motors and electronics; named alongside Daido as a key magnetic materials player.
• VACUUMSCHMELZE (VAC): German specialist in soft magnetic materials, permalloys, and rare-earth permanent magnets. Comparable product portfolio in electrical steel and bonded magnets serving EV and industrial customers.
• Crucible Industries: US producer of high-speed steel, tool steel, and specialty alloys. Named alongside Daido as a key player in the global high-speed steel market; similar end markets in cutting tools and industrial dies.

Emerging players

• Arnold Magnetic Technologies: US-based magnetic materials and rare-earth magnet producer. Competes with Daido in soft magnetic materials and SmFeN-style bonded magnet applications, particularly for motors and electronics.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xtwitter.com/daidosteel_pr
• YouTubeyoutube.com/@daidosteeljp
• Instagraminstagram.com/daidosteel_official

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Subsidiaries4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Daido Steel