Posted by Gerald J. on April 03, 2001 at 10:59:15:
In Reply to: Question for Metallurgists posted by Matt G on April 03, 2001 at 10:02:09:
Red brass: 85% copper, 15% zinc
Rose brass, not an industrial name.
Gold brass. Not an industrial name.
Yellow Brass: 65% copper, 35% zinc
Nickel Silver: Alloy 752: 65% copper, 17% zinc, 18% nickel
Nickel Silver: Alloy 750: 55% copper, 27% zinc, 18% nickel
Admiralty brass: 71% copper, 28% zinc, 1% tin
Naval brass: 60% copper, 39.25% zinc, 0.75% tin
Gilding: 95% copper, 5% zinc
Commercial bronze: 90% copper, 10% zinc
Low brass: 80% copper, 20% zinc
Cartridge brass: 65% copper, 35% zinc
Muntz metal: 60% copper, 40% zinc
Aluminum brass: 77.5% copper, 20.5% zinc 2% aluminum
Then there's a whole series with a bit of lead added for freer machining and easier
forming.
There's Phosphor bronzes with 1.25 to 10% tin, the remainder copper. Phosphor was added to remove oxygen.
Aluminum bronzes have 5 to 8% aluminum in copper, one has 7% aluminum, 2% iron.
The Naval and Admiralty bronzes are good in corrosive situations.
Gerald J.