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Yellow bronze


#1

What exactly is yellow bronze? I made an inquiry about a toggle clasp
and was told it’s yellow bronze with a little bit of copper in it, no
brass present. Huh? So that would make it (mostly) copper with tin or
zinc?

Thanks for any comments anyone can make, Carol


#2

Copper alloy nomenclature can be confusing! Brass is nominally copper
and zinc. Classic bronze is nominally copper and tin. Then it gets
confusing—commercial bronze is 90% copper 10% zinc. Copper alloys
lose the copper red color quickly when combined with other metals.
Yellow brass can be a lot of things but it is generally called that
at about 65% copper 35% zinc. The best web source on copper alloys
is: http://copper.org the site has a lot of but it may
take
a little looking around it.

jesse