Non-ferrous alloys

Question 1

Bronze

Answer 1

Tough, corrosion resistant, can be cast
90 per cent copper, 10 per cent tin
Melting temp - 850 to 1000°C

Question 2

Brass

Answer 2

Corrosion resistant, good electrical and thermal conductor, low melting point, casts well
65 per cent copper, 35 per cent zinc
Melting temp - 930°C

Question 3

Duralumin

Answer 3

Equivalent strength to LCS but more lightweight, ductile, becomes harder as worked
4 per cent copper, 1 per cent magnesium and manganese

Question 4

Pewter

Answer 4

Malleable, low melting point, casts well
85-99p per cent tin with any left over consisting of copper and antimony
Melting temp - 170 to 230°C