Tombac is an alloy of copper and zinc. This alloy is used by Russia in making medals (The 1980 Olympic 'Bronze' Medals were actually Tombac medals). During World War II, the same alloy was used to mint Canadian nickels.
Tombac is an alloy formed from copper (84 - 90%) and zinc (10 - 16%) - The addition of arsenic produces White Tombac. It is also used in the manufacture of projectiles at Barnaul Machine Tool-Plant Zavod, in Russia. Tombac is bonded in a heat process with steel to produce a bi-metallic projectile, giving the appearance of a copper jacket but having the added strength of steel.[citation needed]
The term tombac is derived from Malay word tĕmbaga, which means copper.
Wikipedia,
the free encyclopedia © 2001-2006 Wikipedia
contributors (Disclaimer)
This article is licensed under the GNU
Free Documentation License.
Last updated on Monday September 24, 2007 at 05:23:47 PDT (GMT -0700)
View
this article at Wikipedia.org - Edit
this article at Wikipedia.org - Donate
to the Wikimedia Foundation