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19 Cards in this Set
- Front
- Back
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What structure does copper have? |
FCC |
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Key properties of copper? |
High electric and thermal conduct. Good corrosion resistance. Good machinability Good strength. Easily fabricated. |
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What is arsenical copper? Uses? |
0.3%As - corrosion resistance - condensers and heat exchangers |
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What is free cutting copper? Uses? |
0.6%Te - excellent machinability so used for precision electrical equipment |
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What is silver-bearing copper? |
7-30Oz/Ton Ag - used for soldering and electric motors for aircraft |
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What is the difference between alpha brass and beta? |
Alpha is up to 36% Zn. Single phase. Good cold working properties. Good corrosion resistance. Beta is 38-46% Zn. Double phase. Good for hot working. |
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Key properties of brass? |
Excellent machinability Good strength Corrosion resistant |
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What other elements can be added to brass? |
Lead Manganese Aluminium Silicon Nickel Iron |
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What is a tin bronze? |
One which had 1-11% Sn |
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What are some properties of tin bronze? |
Tough, ductile, strong and corrosion resistant. |
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Uses for tin bronze? |
Castings, bearings. |
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What is an aluminium bronze? |
Cu and Al up to 11% |
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Where is aluminium bronze used? |
Gears, blades, pump parts, dies |
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What is silicon bronze? |
Cu and Si up to 5% |
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Properties of CuSi |
Strongest and work hardenable Corrosion resistant |
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Where is CuSi used? |
Tanks, marine construction, hydraulic pressure |
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What is a cupro nickel? |
CuNi l |
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Properties of Cupro Nickels |
Corrosion resistant, tough, ductile, strong |
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Where are cupro nickels used? |
Ships hull. Offshore equipment. |
