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For The World, and The Future.

Nippon Steel & Sumikin SG Wire Co., Ltd. is a pioneer in the manufacture of specialty steel wire in Japan, producing a whole range of wire, including oil-tempered wire, hard-drawn steel wire, music spring wire, PC steel wire and strand, shaped wire, stainless steel, ultra fine gauge wire and many others.

Nippon Steel & Sumikin SG Wire was founded in May 1938 to respond to an anticipated increase in demand for music spring wire, a basic industrial material, for which Japan had been entirely dependent on import. One of the founders of the Company, Mr. Yutaro Murayama, was full of trailblazer spirit, and succeeded in the first domestic production of this product, a remarkable achievement at that time.

Since its establishment, Nippon Steel & Sumikin SG Wire has produced and sold more than 10,000 different kinds of steel wire for not only piano, but also for engines in vehicles ranging from motorcycles to passenger cars and trucks, and more recently, in environmentally friendly hybrid cars. Our products are also used in civil engineering work for bridges and high-rise buildings, precision machinery, home appliances, cameras, semiconductors, communication devices and other uses where strict quality control and advanced level of manufacturing are of paramount importance. 

Let us know what your dreams are. Nippon Steel & Sumikin SG Wire wishes to provide you, our valued customers with strong support in realizing your dreams by pursuing the highest quality in our products in satisfying the requirements of the global markets of today and tomorrow.