Use of a brass alloy for sanitary pipes

Details Use of a brass alloy for sanitary pipes Use of a brass alloy for sanitary pipes

1998-04-22

1999-10-05

Ip, Sikyin

Metal treatment

Stock

Copper base

420477, C22C 908

Patent

active

059617497

ABSTRACT:
The invention relates to the use of a brass alloy with a high degree of cold workability for sanitary pipes, comprising 60.5-63.2% Cu, 2%-3.7% Pb, the balance Zn, plus normal impurities, wherein the effective copper equivalent is 63%-64.5% Cu. The use of cheap scrap in production of the alloy is possible by virtue of admitting lead and impurities. A very good degree of cold workability is afforded by virtue of the copper equivalent which is comparable to that of MS 63. The use of cheap return scrap causes the production costs for the alloy to be significantly below those of MS 63.

REFERENCES:
patent: 3963526 (1976-06-01), Lunn
patent: 5445687 (1995-08-01), Sukegawa et al.
patent: 5507885 (1996-04-01), Sakai et al.
Bowers, J.E; Oseland, P.W.R.; Davies, G.C. "Development of a hot-stamping brass resistant to dezincification," Br. Corros. J. (1978), 13(4), 177-85 (provided abstract only).

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