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Since its founding, KOUEI has been supplying high temperature / corrosion resistant alloys, magnetic materials, low-expansion alloys (Kovar, Invar), electronic metal parts and various special alloys to many different fields such as petrochemical, industrial machine, heat exchanger, electronics industry, marine development, electric power and aerospace industry and other industries.
At first, we have delivered raw materials in a shape of wire, bar, sheet, pipe and strip, and gradually as responding to various demands, we have been supplying processed parts.
Today, we also design and manufacture various industrial machineries and plant equipment.

Regarding to processing way for special metal alloys, there are variety of problems like poor machinability, difficult plasticity, specific heat treatment specification and special welding techniques.
We have improved and researched these processing techniques and application of the materials for a long time. And more, we have established network of cooperative factories.
In 2009, we opened a factory for rolling and heat treatment of strips, and for development of clad metals.
The factory can answer to customer’s requests such as small amount of custom-made products or from trial production to mass production.
In the field of advanced technology development, special alloys are playing an important role increasingly large every year.
KOUEI will contribute to development of technology through supplying highly- functional materials.

For nickel, nickel alloys and clad metals— ask KOUEI.

As the comprehensive manufacturer of nickel alloys, KOUEI stocks variety of nickel alloys such as pure nickel, permalloy- the magnetic alloy, Invar, Super invar and Kovar- the low expansion alloy. It is our feature that not only selling metal materials, we can also accomplish total management consistently from design, processing to assembly by ourselves. We can handle short delivery term orders or small amount of order, so please feel free to ask KOUEI for nickel alloys. Well-experienced staffs will respond to inquiries about materials and processing techniques. We are looking forward to your inquires, even asking for only our brochure documents is very welcome. You can make inquiries us through phone call or contact page.

KOUEI, the comprehensive manufacturer of nickel alloys

会社名 株式会社 光栄
創業 1977年03月
設立 1978年10月
資本金 4,800万円
事業内容 素材販売、機械加工、プラント設備・機械の設計と製造
従業員数 94名(役員含む)
決算期 3月31日

■本社 新館 (営業部・生産管理部)
〒132-0021 東京都江戸川区中央3-5-4

■本社 本館 (総務部・品質保証部)
〒132-0021 東京都江戸川区中央3-5-6

TEL(代表) 03-3674-5222
FAX 03-3656-0503
Company name KOUEI CO., LTD.
Foundation March 1977
Establishment October 1978
Capital 48,000,000 JPY
Services Design and production of precious metal contacts materials
Processing of metal materials, design and production of machineries
Number of employees 94 (including director)
Fiscal term March 31

■New Building
3-5-4, Chuo, Edogawa-ku, Tokyo, JAPAN 132-0021

■Main Building
3-5-6, Chuo, Edogawa-ku, Tokyo, JAPAN 132-0021

TEL +81-3-3674-5222(main number)
+81-3-5879-9927(for English call)
FAX +81-3-3656-0503