Name for an alloy of copper and zinc with approx. 65 to 95% copper and the rest zinc. Tombac gets its name from the Malaysian name for copper, tumbaga or tambaga. Tombac alloys have around 80% Cu and, compared to brass, always have a slightly redder color due to the higher percentage of copper which is why they are also called “red brass”.
This kind of red brass should not be confused with the group of copper-tin-zinc-lead alloys (DIN EN 1982) which are also sometimes called this.
Tombac alloys may be:
Deutsches Kupferinstitut (DKI), Düsseldorf, www.kupferinstitut.de
DIN EN 1982:1998, Kupfer und Kupferlegierungen, Blockmetalle und Gussstücke