Brass & Bronze or Copper

Bronze is "Copper with Tin" and other trace elements. Brass is "Copper with Zinc" and other trace elements.

 Bronze has a reddish tint.

 Brass has a yellow tint.


   There are hundreds of types of bronze and brass alloys, what they all have in common is copper base. By adding small amounts of other elements to a copper base, you change the characteristics of that alloy. When melting bronze or brass, they start to smoke just before they are ready to pour. This smoke is the low melting alloys turning to gas and escaping. As these low melting alloys are released, the alloy becomes less fluid.

 

Search for Scrap
There are casting alloys and extruded alloys.

Extruded alloys are engineered to be rolled, squeezed and smashed into their shape while being heated. Extruded alloys are plate, tube, angle, etc. Some extruded alloys do not cast very well, they pour thick, like soup no matter how hot they get. Look for scrap items that have been cast into their shape, these alloys are good for casting.
When searching for scrap bring along a file and scrape the part in question to reveal it's true color. Some scrap has patina so much, you can't see the color unless you scrape it. Try to keep red and yellow separated, although you can mix copper alloys.