What's Yellow Brass ?
Shall consist of mixed yellow brass solids, including brass castings, rolled brass, rod brass, tubing and miscellaneous yellow brasses, including plated brass. Must be free of manganese-bronze, aluminum-bronze, unsweated radiators or radiator parts, iron, and excessively dirty and corroded materials.
Must also be free of any type of munitions including, but not limited to, bullet casings.
Yellow brass is 33% zinc and 67% copper.
Brass goes from dark reddish brown to light silvery yellow depending on the amount of zinc. The more zinc the lighter the color.
Yellow brass scrap value
The recycling of brass scrap is a basic essential of the economics of the industry.
Brass for extrusion and hot stamping is normally made from a basic melt of scrap of similar composition adjusted by the addition of virgin copper or zinc as required to meet the specification before pouring.
The use of brass scrap bought at a significantly lower price than the metal mixture price means that the cost of the fabricated brass is considerably less than it might otherwise be.
The presence in brass of some other elements such as lead is often required to improve machinability so such scrap is frequently acceptable.
Besides the common free-machining brasses, there are many others made for special purposes with properties modified to give extra strength, hardness, corrosion resistance or other attributes, so strict segregation of scrap is essential.
Brass scrap arising from machining operations can be economically remelted but should be substantially free from excess lubricant, especially those including organic compounds that cause unacceptable fume during remelting.