Common Alloys
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Alloy | Composition | Uses |
Babbitt Metal | Tin: 90%, Antimony: 7% & Copper: 3% | Used in bearings because of its low measure of friction with steel. |
Bell Metal | Copper: 77% & Tin: 23% | Casting of bells. |
Brass | Mainly Copper with up to 50% Zinc | Inexpensive jewelry, hose nozzles and couplings, stamping dies. |
Bronze | Mainly Copper with up to 12% Tin | Coins & medals, heavy gears, tools electrical hardware. |
Coin Metal | Used in USA for making coins. | |
Duralumin | Aluminium: 95%, Copper: 4%, Manganese ‹1%, Magnesium: 0.5% | Aircraft, boats, railroad cars, and machinery because of its high strength & resistance to corrosion. |
Gun Metal | Copper: 85 – 90%, Tin: 8 – 12% & Zinc: 1 – 3% | |
Monel | Nickel: 60%, Copper: 33% & Iron: 7% | Corrosion-resistant containers. |
Phosphor bronze | Bronze with a small amount of phosphorus | Springs (normal & electrical) & boat propellers. |
Solder metal | Lead: 50% & Tin: 50% | Joining two metals to each other. |
Sterling Silver | Silver: 92.5% & Copper: 7.5% | Jewelry, art objects etc. |
Type Metal | Lead: 75 – 95%, Antimony: 2 – 18% & Tin in trace quantities. | Used to make type characters for printing; also used for making decorative objects like statuettes and candlesticks. |