Wenderoth, Lind & Ponack, L.L.P.
Brass alloy for tap water supply member
A brass alloy is provided having good mechanical properties and castability, and excellent general-purpose properties, while its dezincification corrosion is inhibited. The brass alloy contains 0.4% by mass or more and 3.2% by mass or less of Al; 0.001% by mass or more and 0.3% by mass or less of P; 0.1% by mass or more and 4.5% by mass or less of Bi; 0% by mass or more and 5.5% by mass or less of Ni; 0% by mass or more and 0.5% by mass or less of Mn, Fe, Pb, Sn, Si, Mg, and Cd, respectively; and Zn; the balance being Cu and a trace element or elements. The zinc equivalent (Zneq) calculated from the content of Zn and other elements, and the content of Al (% by mass) satisfy the following Equations (1) and (2):Zneq+1.7×Al≥35.0  (1)Zneq−0.45×Al≤37.0  (2).
KURIMOTO, LTD.
C
C22C
inventional
Masaaki Hiroshi
Yamamoto Yamada