The microstructure of copper base corrosion resistant alloy should be single-phase to avoid electrochemical corrosion caused by the second phase in the alloy. For this reason, the added alloy elements should have great solid solubility in copper bars, even infinitely miscible elements. Single phase brass bars, bronze bars and white copper bars used in engineering have excellent corrosion resistance and are important heat exchange materials.

Different zinc content will have different colors. For example, 18% - 20% zinc content will be red and yellow, while 20% - 30% zinc content will be brown and yellow. In addition, brass has a unique sound, so gongs, cymbals, bells, horns and other instruments in the East and brass instruments in the West are all made of brass.