Kurimoto, Ltd.

Yoshimasa Hirai

Masaaki Yamamoto

Takeshi Kobayashi

Toru Maruyama

Tomohiro Sato

Hiroaki Maedono

Chizuko Maedono, Legal Representative

A copper alloy having excellent sliding performance is produced without relying on lead or molybdenum. The copper alloy contains a sintered CuFeSmaterial produced by sintering a raw material powder that comprises Cu, Fe and S and is produced by a gas atomizing method.

Copper alloy for sliding materials

A member for water works is proposed in which the content of lead is limited to a very small values while maintaining its mechanical properties, castability, machinability, pressure resistance, etc. to levels equivalent to those of conventional copper alloys containing lead. A copper alloy is produced which contains not less than 2.0% by weight and not more than 5.9% by weight of tin, not less than 1.5% by weight and not more than 5.0% by weight of nickel, not less than 5.0% by weight and not more than 12.1% by weight of zinc, not less than 0.4% by weight and not more than 3.3% by weight of bismuth, and not less than 0.009% by weight and not more than 0.15% by weight of phosphorus, the balance being copper and impurities.

Copper alloy water supply member

Growing community of inventors

Osaka, Japan

Yoshimasa Hirai