The red copper bar, the surface finish is not good, some black, what is the reason
In addition, brass sounds unique, so instruments such as gongs, cymbals, bells, and brass, as well as Western brass instruments, are made of brass.
The mechanical properties and wear resistance of brass are very good, can be used to manufacture precision instruments, ship parts, gun shells and so on. Different zinc content, there will be different colors, such as zinc content of 18%-20%, will be red and yellow, and zinc content of 20%-30%, it will be brownish yellow.
Brass rods are made from copper and zinc alloys, and they are named after the Yellow color. A brass with a copper content of 56%~68%, having a melting point of 934~967 degrees.
