This reddish metal is a main ingredient of both brass & bronze
[DOC] [TLE] Guide to Brass - Online Metal Store | Small Quantity Metal Orders ... [PAR] Other alloys of copper where the main alloying ingredient is tin are usually 
referred to ... With few exceptions, most notably C230 Red Brass and C770 
Nickel Silver, ... of both workability and machinability (the latter due to the 
presence of lead).