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Composition of cartridge brass
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Engineering Metallurgy
Q. What is the composition of cartridge brass?
- Published on 11 Sep 15
a.
50 % Cu and 50 % Zn
b.
60 % Cu and 40 % Zn
c.
70 % Cu and 30 % Zn
d.
20 % Cu and 80 % Zn
ANSWER: 70 % Cu and 30 % Zn
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Discussion
Sravanthi
-Posted on 21 Nov 15
α – brass contains zinc upto 36%.
- Cartridge brass and admiralty brass are examples of α – brass.
Cartridge brass
- Cartridge brass is also known as 70 : 30 brass. It contains 70% Cu and 30% Zn.
- This brass is used for cartridge cases, radiator fins, etc.
Admiralty brass:
- This brass is formed when 1% of tin is added to cartridge brass.
- This brass is used for manufacturing condenser tubes, heat exchangers for steam power plants, etc.
- Dezincification type of corrosion can be avoided by adding 2% of aluminium and arsenic.
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