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US 5,507,885 AGranted
Copper-based alloy
AssigneeKitz Corporation
InventorsSadao Sakai, Setsuo Kaneko, Kazuaki Yajima, Kazuhiko Kobayashi
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AssigneeKitz Corporation
InventorsSadao Sakai, Setsuo Kaneko, Kazuaki Yajima, Kazuhiko Kobayashi
Estimating the term…
A copper-based alloy, viz. a dezincification-resistant brass, excels in various properties such as resistance to dezincification, hot forgeability and machinability and, therefore, tolerates use particularly in the atmosphere of a corrosive aqueous solution. The brass of one species has a composition of 59.0 to 62.0 wt % of Cu, 0.5 to 4.5 wt % of Pb, 0.05 to 0.25 wt % of P, 0.5 to 2.0 wt % of Sn, 0.05 to 0.30 wt % of Ni, with or without 0.02 to 0.15 wt % of Ti, and the balance of Zn and unavoidable impurities. The brass of another species has a composition of 61.0 to 63.0 wt % of Cu, 2.0 to 4.5 wt % of Pb, 0.05 to 0.25 wt % of P, 0.05 to 0.30 wt % of Ni, with or without 0.02 to 0.15 wt % of Ti, and the balance of Zn and unavoidable impurities.
A copper-based alloy having a composition consisting of 59.0 to 62.0 wt % of Cu, 0.5 to 4.5 wt % of Pb, 0.05 to 0.25 wt % of P, 0.5 to 2.0 wt % of Sn, 0.05 to 0.10 wt % of Ni, and the balance of Zn and unavoidable impurities.
A copper-based alloy having a composition consisting of 59.0 to 62.0 wt % of Cu, 0.5 to 4.5 wt % of Pb, 0.05 to 0.25 wt % of P, 0.5 to 2.0 wt % of Sn, 0.05 to 0.10 wt % of Ni, 0.02 to 0.08 wt % of Ti, and the balance of Zn and unavoidable impurities and having the an .alpha.+.beta. structure finely divided uniformly.
A copper-based alloy having a composition consisting of 61.0 to 63.0 wt % of Cu, 2.0 to 4.5 wt % of Pb, 0.05 to 0.25 wt % of P, 0.05 to 0.15 wt % of Ni, and the balance of Zn and unavoidable impurities.
A copper-based alloy having a composition consisting of 61.0 to 63.0 wt % of Cu, 2.0 to 4.5 wt % of Pb, 0.05 to 0.25 wt % of P, 0.05 to 0.15 wt % of Ni, 0.02 to 0.08 wt % of Ti, and the balance of Zn and unavoidable impurities.
A copper-based alloy having a composition consisting of 60.5 to 61.5 wt % of Cu, 1.6 to 2.4 wt % of Pb, 0.07 to 0.10 wt % of P, 1.0 to 1.5 wt % of Sn, 0.05 to 0.10 wt % of Ni, and the balance of Zn and unavoidable impurities.
A copper-based alloy having a composition consisting of 60.5 to 61.5 wt % of Cu, 1.6 to 2.4 wt % of Pb, 0.07 to 0.10 wt % of P, 1.0 to 1.5 wt % of Sn, 0.05 to 0.10 wt % of Ni, 0.02 to 0.08 wt % of Ti, and the balance of Zn and unavoidable impurities and having an .alpha.+.beta. structure finely divided uniformly.
A copper-based alloy having a composition consisting of 62.2 to 62.6 wt % of Cu, 2.1 to 4.2 wt % of Pb, 0.07 to 0.2 wt % of P, 0.05 to 0.15 wt % of Ni, and the balance of Zn and unavoidable impurities.
A copper-based alloy having a composition consisting of 62.2 to 62.6 wt % of Cu, 2.1 to 4.2 wt % of Pb, 0.07 to 0.2 wt % of P, 0.05 to 0.15 wt % of Ni, 0.02 to 0.08 wt % of Ti, and the balance of Zn and unavoidable impurities.
Dependencies are inferred from the claim text.