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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Bibliographic Details
Main Authors OISHI Keiichiro, HOKAZONO Takashi, NAKASATO Yosuke
Format Patent
LanguageEnglish
French
German
Published 20.03.2019
Subjects
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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Summary: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.
Bibliography:Application Number: EP20140849687