Correct option is A
Brass is an alloy made of
copper and zinc. The proportion of zinc and copper can be varied to create different types of brass with varying properties. Typically, brass consists of 60–70% copper and 30–40% zinc. Brass is known for its corrosion resistance, ductility, and attractive gold-like appearance, making it useful in applications such as plumbing, decorative items, musical instruments, and electrical fittings.
Properties of Brass:
· High corrosion resistance.
· Good machinability and formability.
· Low friction and excellent acoustic properties.
Common Types of Brass:
Alpha Brass: Contains less than 37% zinc; highly ductile.
Beta Brass: Contains more zinc (37–45%); stronger but less ductile.
Applications: Brass is widely used in electrical connectors, fittings, locks, valves, and decorative hardware due to its mechanical properties and appearance.
The following table shows some metals with there alloys.
| Name of the alloy |
Made up of |
| Brass |
Copper and Zinc |
| Bronze |
Copper and Tin |
| German Silver |
Copper, Zinc, and Nickle |
| Nickel Steel |
Iron and Nickel |
Duralumin: It is an aluminium alloy. It contains 3.5 to copper, 0.4 to manganese, 0.4 to magnesium and the remaining being aluminium. It is widely used in the aircraft industry for forging, stamping, bars, sheets, rivets, and so on.
Hindalium: It contains 5% copper and the rest aluminium. It is used for containers, utensils, tubes, rivets, etc.
