Brass is a mixture of copper and zinc metals. Brass has a high tensile strength and is easy to machine. Its high corrosion resistance is good for outdoor use, plumbing components and naval/marine applications. Brass has a high tensile strength and is easy to machine. This makes it ideal for intricate and low-friction parts, like locks, gears, valves and bearings.Brass is a great conductor of heat and is corrosion-resistant.So after a period of time Brass reacts with open air or oxygen and generally gets oxidized or tarnishes and might turn black or green. We Sky Metal Recyclers give best price for your scrap brass.Come to our yard 60 ROCKFIELD ROAD, PENROSE,AUCKLAND, 1061, NEW ZEALAND