Metals

Question 1

Stainless steel

Answer 1

FERROUS
Malleable
Doesn’t rust

Uses- kitchen sinks

Question 2

Cast iron

Answer 2

FERROUS
Castability
High compressive strength
Resistance to rusting

Uses - engineering- pipes, machines

Question 3

Tool steel

Answer 3

FERROUS
Hard,
Abrasion resistant
Holds cutting edge at high temp

Uses- tools- cutting and drills

Question 4

Steel tubing

Answer 4

FERROUS
Needs galvanising or rusts
Strong

Uses- bike frames

Question 5

Iron

Answer 5

FERROUS
Strong

Uses- girders, bridge support- extrusion moulded

Question 6

Non ferrous

Answer 6

No iron
Non magnetic
Corrosion resistant though may tarnish

Question 7

Silver

Answer 7

NON FERROUS
Can be soldered and polished

Uses- cutlery, jewellery

Question 8

Copper

Answer 8

NON FERROUS
Conducts heat and electricity
Strong and ductile
Connected by brazing

Uses - wires or plumbing

Question 9

Aluminium

Answer 9

NON FERROUS
Low density
Strong

Uses- aerospace, transport and structure

Question 10

Titanium

Answer 10

NON FERROUS
Highest strength to weight ratio of all metals
Withstands high temp
Crack resistant

Uses- aircraft and aerospace , surgical implants

Question 11

Zinc

Answer 11

NON FERROUS
Low density
Low melting and boiling points

Uses- zinc playing (galvanising) - more reactive than iron so forms protective ZnO3 layer

Question 12

Ferrous metals

Answer 12

Contains iron
Magnetic
Rusts- oxidised in h20 and air