Olin Corporation

John Shabarack

Derek E Tyler

Michael J Pryor

Stanley Shapiro

Brazing preforms are disclosed which may take the form of wire, sheet or strip, and which are useful for joining copper, ferrous and nickel base alloys. The preforms of this invention are prepared from an alloy which contains manganese from 22 to 40%, iron from 0.1 to 2%, aluminum from 0.1 to 5%, zinc from 2 to 10%, balance essentially copper. A method of brazing is also disclosed which may be performed with or without a flux, and which is conducted in an inert atmosphere, at a temperature of from about 900.degree. to 1100.degree.C. The brazed products of this invention possess reduced brittleness and improved resistance to corrosion.

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Branford, CT, United States of America

John Shabarack