metals

Question 1

what are ferrous metals?

Answer 1

metals containing iron

Question 2

mild steel

Answer 2

ferrous metal

• ductile
  high tensile strength
  tough
  malleable
  poor resistance to corrosion
• nuts bolts washers etc

Question 3

medium carbon steel

Answer 3

ferrous metal

harder than low carbon steel but less ductile, malleable and tough

springs, garden tools, trowels

Question 4

cast iron

Answer 4

ferrous metal

harder out skin but brittle core,
good under compression

disc brakes, machine parts, engine blocks

Question 5

aluminium

Answer 5

non ferrous metals
- lightweight, ductile, malleable, corrosion resistant, electrical and thermal conductor
- drinks cans, saucepans, packaging

Question 6

zinc

Answer 6

non ferrous

low melting point, good corrosion resistance

protective coats, buckets

Question 7

tin

Answer 7

non ferrous

ductile, malleable, low melting point, corrosion resistant

coatings for food cans

Question 8

copper

Answer 8

non ferrous metal

ductile, malleable, tough, corrosion resistant, good electrical and thermal conductor

electrical wires, water tanks and pipes

Question 9

stainless steel (chrome and nickel)

Answer 9

alloys

tough, hard, corrosion resistant

sinks, kitchenware, cutlery

Question 10

duralumin

Answer 10

alloys (copper magnesium and manganese)

equivalent strength to mild steel but more lightweight and ductile

vehicle parts

Question 11

brass

Answer 11

alloys (copper and zinc)

corrosion resistant, good elec and thermal conductor, low mp

cast taps and valves and ornaments

Question 12

whats an alloy

Answer 12

two or more metals /elements