Brass (es) are alloys made of copper (Cu) e zinc (Zn). this alloy and other quaternary brasses in which different chemical elements are found.
Other elements can be added to the alloy to obtain specific properties:
manganese and tin increase its resistance to corrosion;
iron increases its breaking point;
aluminium increases its resistance to corrosion and to abrasion;
antimony and arsenic inhibit degalvanization.
nickel improves its mechanical characteristics and resistance to corrosion;
silicon helps to disoxidize and helps the creation of phase β.
Brass is a ductile, malleable material and has good resistance to corrosion. Compared to copper, it presents higher hardness values, resistance and fusibility. Brass has a wide range of applications, so large that we can only give an approximate list.
The main fields of use are:
electricity (electrical apparatus, switches, contacts, sockets)
nautical field (plates, exchangers)
ammunition (shell cases)
plumbing (faucets, valves, radiators, pipes)
chemical industry (exchangers)
mechanical industry (bolts, screws, gears, small metal parts)
construction and furnishings (zippers, locks, handles and furniture elements)
coinage and similar(coins, plates, medals, decorations)
musical instruments (brasses or ottoni)