FASTENING COPPER ALLOY

A copper alloy for fastening wherein the alloy has a structure of a mixture of ±-phase and a ²-phase; and wherein the alloy has a composition represented by the general formula: Cu bal .Zn a Mn b , where bal., a, and b are expressed in % by mass, bal. represents the balance, 34 ‰¤ a ‰¤ 40.5, 0.1 ‰¤...

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Bibliographische Detailangaben
Hauptverfasser:	KIYOHARA,JUN, OGIHARA,ATSUSHI, YOSHIMURA,YASUHARU, KIDO,KOUTA, MIKADO,KOUICHI, KOIZUMI,TAKUYA, FUKUYAMA,TAKAHIRO, TAIRA,YOSHIO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS HABERDASHERY HUMAN NECESSITIES JEWELLERY METALLURGY TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A copper alloy for fastening wherein the alloy has a structure of a mixture of ±-phase and a ²-phase; and wherein the alloy has a composition represented by the general formula: Cu bal .Zn a Mn b , where bal., a, and b are expressed in % by mass, bal. represents the balance, 34 ‰¤ a ‰¤ 40.5, 0.1 ‰¤ b ‰¤ 6, and inevitable impurities may be contained; and the composition satisfying the following equations (1) and (2): b ‰¤ (-8a + 300)/7, where 34 ‰¤ a < 37.5 -(1), b ‰¤ (-5.5a + 225.25)/5, where 35.5 ‰¤ a ‰¤ 40.5 - (2) .