1.2 Metals

Question 1

Define ferrous metals

Answer 1

Metals that contain iron

Question 2

Define non-ferrous metals

Answer 2

Metals that do not contain iron

Question 3

Define alloys

Answer 3

Metals made of two or more metals

Question 4

What are some examples of ferrous metals?

Answer 4

Mild steel
Medium carbon steel
Cast iron

Question 5

What are some examples of non-ferrous metals?

Answer 5

Aluminium
Zinc
Tin
Copper

Question 6

What are some examples of alloys?

Answer 6

Stainless steel
Duralumin
Brass

Question 7

What is the carbon content and melting point of mild steel?

Answer 7

0.15-0.30 per cent carbon content
1427 degrees Celsius

Question 8

What is the carbon content of medium carbon steel?

Answer 8

0.30-0.70 per cent carbon content

Question 9

What is the carbon content and melting point of cast iron?

Answer 9

3.5 per cent carbon content
1149 degrees Celsius

Question 10

What are some properties and uses of mild steel?

Answer 10

Ductile, high tensile strength, tough, malleable, poor resistance to corrosion
Nuts, bolts, washers, screws

Question 11

What are some properties and uses of medium carbon steel?

Answer 11

Harder than mild steel but less ductile, malleable, tough
Springs, gardening tools

Question 12

What are some properties and uses of cast iron?

Answer 12

Harder outer skin but brittle core, good under compression
Disc brakes, machine parts

Question 13

What is the melting point of aluminium?

Answer 13

660 degrees Celsius

Question 14

What is the melting point of zinc?

Answer 14

420 degrees Celsius

Question 15

What is the melting point of tin?

Answer 15

232 degrees Celsius

Question 16

What is the melting point of copper?

Answer 16

1083 degrees Celsius

Question 17

What are some properties and uses of aluminium?

Answer 17

Lightweight, ductile, malleable, corrosion resistant
Drinks cans, aircraft bodies, bike frames

Question 18

What are some properties and uses of zinc?

Answer 18

Good corrosion resistance, low melting point
Protective coating for bins/buckets/gates

Question 19

What are some properties and uses of tin?

Answer 19

Ductile, malleable, tough, good corrosion resistance, low melting point
Soft solder, food can coatings

Question 20

What are some properties and uses of copper?

Answer 20

Ductile, malleable, tough, corrosion resistant, good electrical and thermal conductor
Electrical wire, water pipes, central heating pipes

Question 21

What is the melting point and metal combination of stainless steel?

Answer 21

1510 degrees Celsius
18% chrome, 8% nickel

Question 22

What is the metal combination of duralumin?

Answer 22

4% copper, 1% manganese

Question 23

What is the melting point and metal combination of brass?

Answer 23

930 degrees Celsius
65% copper, 35% zinc

Question 24

What are some properties and uses of stainless steel?

Answer 24

Tough, hard, corrosion resistant
Sinks, kitchenware, cutlery

Question 25

What are some properties and uses of duralumin?

Answer 25

More lightweight, ductile, becomes harder as worked
Aircraft and vehicle parts

Question 26

What are some properties and uses of brass?

Answer 26

Corrosion resistant, good electrical and thermal conductor, low melting point
Boat fittings, door furniture, cast taps, ornaments