COPPER ALLOY AND COPPER ALLOY SHEET

Provided is a copper alloy containing 18% by mass to 30% by mass of Zn, 1% by mass to 1.5% by mass of Ni, 0.2% by mass to 1% by mass of Sn, and 0.003% by mass to 0.06% by mass of P, the remainder including Cu and unavoidable impurities. Relationships of 17¤f1=[Zn]+5×[Sn]-2×[Ni]¤30, 14¤f2=[2n]-0.5...

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Bibliographische Detailangaben
Hauptverfasser:	OISHI Keiichiro, HOKAZONO Takashi, NAKASATO Yosuke
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	Provided is a copper alloy containing 18% by mass to 30% by mass of Zn, 1% by mass to 1.5% by mass of Ni, 0.2% by mass to 1% by mass of Sn, and 0.003% by mass to 0.06% by mass of P, the remainder including Cu and unavoidable impurities. Relationships of 17¤f1=[Zn]+5×[Sn]-2×[Ni]¤30, 14¤f2=[2n]-0.5×[Sn]-3×[Ni]¤26, 8¤f3={f1×(32-f1)} 1/2 ×[Ni]¤23, 1.3¤[Ni]+[Sn]¤2.4, 1.5¤[Ni]/[Sn]¤5.5, and 20¤[Ni]/[P]¤400 are satisfied. The copper alloy has a metallographic structure of an ± single phase.