Are the leftover materials from brass being cut on a lathe. Turnings may also contain chips or solids (small pieces of brass).
Old yellow brass consists of taps, faucets, p-traps, chrome plated plumbing accessories, shower heads, keys, padlocks,and figurines to list a few. Must be free of plastic, steel and other contaminants.
Material left over from plumbing changes to your home, whether it be from a leaky pipe or simply an upgrade can be used for scrap metal. Old plumbing is usually comprised of copper tubing and brass fittings.
Big brass gears mostly used in elevating installations. Gear brass is alloyed with tin.