1.2b Non-Ferrous Metals Flashcards
1
Q
What are non-ferrous metals?
A
Metals without iron
2
Q
Name four non-ferrous metals
A
- Aluminium
- Zinc
- Tin
- Copper
3
Q
What is the melting point of aluminium?
A
650°C
4
Q
What is the melting point of copper?
A
1100°C
5
Q
What is the melting point of zinc?
A
420°C
6
Q
Give the properties of aluminium
A
- Lightweight
- Corrosion resistant
- Good conductor
7
Q
Give the properties of copper
A
- Good conductor of heat
- Good conductor of electricity
- Corrosion resistant
8
Q
Give the properties of zinc
A
Corrosion resistant
9
Q
What are the disadvantages of aluminium?
A
- Can crack under stress
- Requires annealing when worked
- Does not withstand great loads
10
Q
What are two disadvantages of copper?
A
- Requires annealing when worked
- Danger of electrolysis if joined to iron pipes
11
Q
What are the disadvantages of zinc?
A
Becomes brittle when worked
12
Q
Give 3 uses of aluminium
A
- Aircraft industry
- Engine components
- Castings
13
Q
Give 3 uses of copper
A
- Electrical cables
- Central heating
- Printed circuits
14
Q
Give 3 uses of zinc
A
- Castings
- Batteries
- Galvanising
15
Q
List four properties of tin
A
- Low melting point
- Corrosion resistance
- Malleable
- Ductile
16
Q
List two uses of tin
A
- Soft solder
- Food can coating
Rarely used in pure form
17
Q
List four disadvatages of tin
A
- Very low melting point
- Has been linked to health issues
- Bad for environment
- Expensive
18
Q
Melting point of tin
A
232°C
