APPARATUS INVOLVING HOT WATER, ELECTRIC AND MACHINE PARTS AND PARTS FOR SHIP USING COPPER BASE ALLOY EXCELLENT IN CORROSION RESISTANCE AND MACHINABILITY

摘要

PROBLEM TO BE SOLVED: To provide a copper base alloy having machinability characteristic of brass contg. Pb, capable of reducing the raw material cost and furthermore excellent in dezincification-resistance and to provide a copper base alloy suitable for apparatus concerning warm water, electric and machine parts and parts for ships. ;SOLUTION: As for apparatus involving hot water using a copper base alloy excellent in corrosion resistance and machinability, a copper base alloy having a compsn. contg., by weight, 61.0 to 63.0% Cu, 2.0 to 4.5% Pb, 0.05 to 0.25% P, 0.05 to 0.30% Ni, and the balance Zn with inevitable impurities is used as the raw material to produce apparatus concerning to warm water.;COPYRIGHT: (C)1999,JPO