COLOR OF BRASS

For thousands of years, brass and bronze alloys have been used because of their pleasing colors. The rich warmth of polished brass is familiar to all.
By varying the composition of copper alloys. distinct color changes are possible; established and precise alloying techniques enable modern non-ferrous metal producers to provide ingot of almost any specified metallic color for a wide variety of appli­cations from plumbing fixtures to statuary.
Among the groups of common alloys, the copper~zinc brasses have the well-known golden color, although by varying the zinc content, color gradations from pinks to deep yellow can be produced.
The copper-tin alloys have the true bronze color, as do most
of the I~aded tin bronze alloys. Silicon bronze has a yellow cast when polished. Manganese bronze is normally golden yellow.
Nickel silvers, sometimes called "White Brasses", contain DO silver but are alloys of copper, lead. tin, nickel and zinc. They range from pale yellow to white as the zinc or niekel content is increased. For decorative purposes, the white alloy using 18 to 20 percent nickel is most popular.