Zinc
Brass is melted between 900 0C and 950 0C.
Brass is a solid solution. If you melted it, it would still be homogeneous, it wouldn't separate out...ever.
No acutally it is made of bronze melted together at a factory.
Copper and Zinc are melted down to liquid state. Then the two metals are combined in some difficult to explain process. When the liquid metal cools, the alloy Brass is formed.
homogenous
A real gold dollar from the 1800s would be worth at least $125 melted down, but would probably bring much more if sold to a collector. A modern Sacajawea or Presidential "golden" dollar is really made of brass. Melted down it would sell for about 15 cents!
The dodecagonal (12 sided) British brass Threepence was first issued in 1937. The Edward VIII coins dated 1937 were never released into circulation and were melted down. Some coins given to vending machine manufacturers for testing purposes, were never returned. The official first release of the brass Threepence was in 1937 with George VI.
Brazing is actually not a method of welding as it does not melt the joint metal together. Brazing is actually much closer to soldering. It is a process that (usually) uses a gas torch and a thin brass rod to bind two (or more) pieces of metal together. The torch heats the joints surface to the melting temperature of brass at which time the brass filler rod is melted into the joint to fuse them together.
Brass. If you want to be exact, low brass.
The trombone is classified as: low brass, and or brass.
The trumpet and trombone both belong to the brass family.