Brasses with higher copper content are softer and more golden in colour conversely those with less copper and thus more zinc are harder and more silvery in colour.īrass is still commonly used in applications where corrosion resistance and low friction are required, such as locks, hinges, gears, bearings, ammunition casings, zippers, plumbing, hose couplings, valves, and electrical plugs and sockets. It has also been widely used to make sculpture and utensils because of its low melting point, high workability (both with hand tools and with modern turning and milling machines), durability, and electrical and thermal conductivity. Historically, the distinction between the two alloys has been less consistent and clear, and increasingly museums use the more general term " copper alloy." īrass has long been a popular material for its bright gold-like appearance and is still used for drawer pulls and doorknobs. Both bronze and brass may include small proportions of a range of other elements including arsenic (As), lead (Pb), phosphorus (P), aluminium (Al), manganese (Mn), and silicon (Si). In use since prehistoric times, it is a substitutional alloy: atoms of the two constituents may replace each other within the same crystal structure.īrass is similar to bronze, a copper alloy that uses tin instead of zinc. 1500.īrass is an alloy of copper (Cu) and zinc (Zn), in proportions which can be varied to achieve different colours and mechanical, electrical, acoustic, and chemical properties, but copper typically has the larger proportion. Attributed to Aert van Tricht, Limburg (Netherlands), c. Islamic Golden Age Brass astrolabe Brass lectern with an eagle. For other uses, see Brass (disambiguation).
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