Properties
and Uses of the Non-ferrous Alloys |
|
|
Non-ferrous Light Alloy |
|
|
Sr.
No. |
Alloy
Group |
Constituents
approximate percent |
Properties |
Uses |
|
| 1 |
Brass |
Copper
- 4.5
Manganese - 0.7
Magnesium - 0.7
silicon - 0.7
Aluminium remainder |
Having
light weight, one third that of steel. Strong like mild
steel. Can be heat treated and age-hardened. |
Aircraft
sheets, engines and airframe structural parts rivets, tubes
etc. |
| 2 |
Alclad |
It
is a duralumin sheet but having coating of pure aluminium
on each side. |
Having
all the properties of duralumin with the resistance to corrosion
of aluminium. |
Aircraft
sheets and wing coverings. |
| 3 |
Y-alloy |
Copper
- 4
Nickel - 2
Magnesium - 1.5
Aluminium remainder
|
Resistant
to corrosion and fatigue. Withstands relatively high temperatures.
Can be heat treated and age-hardened. |
Used
for making pistons and cylinder heads. |
| 4 |
Hiduminium |
Copper
- 2.5
Nickel - 1.5
Iron - 1.5
Magnesium - 1.2
Silicon - 1.0
Aluminium remainder |
Strong
as mild steel. Can be heat treated and age-hardened at low
temperatures. |
Used
for making air-craft structural parts, pistons, cylinder
heads etc. |
| 5 |
Aluminium
bronze |
Copper
- 90
Aluminium - 10 |
It
is a copper-aluminium alloy having high strength. |
Used
for diecasting and pump-rods also in place of steel for
non-sparking chisels. |
|
| Non-ferrous
Heavy Alloys |
|
Sr.
No. |
Alloy
Name |
Constituents
approximate percent |
Properties |
Uses |
|
| 1 |
Brass |
Copper
70
Zinc - 30 |
Good
wearing, antifriction, corrosion resistant. |
Used
for making pipe fittings, tubing, filter, gauges, bearing
bushes etc. |
| 2 |
Bronze |
Copper
- 95
Tin - 5 |
Good
wearing, antifriction, corrosion resistant. |
Used
for making bearing bushes. |
| 3 |
Phospher
bronze |
Copper
- 89
Tin - 10
Phosphorous - 1 |
Has
good tensile strength and resists corrosion by seawater. |
Used
for bearings and gears. |
| 4 |
Solder |
Tin
- 60
Lead - 40 |
Low
melting point which depends upon the proportion of constituents. |
Used
for bearings the metal sheets. |
| 5 |
White
metal |
Copper
- 5
Tin - 85
Antimony - 10 |
Tough,
antifriction properties, melts at a low temperature when
bearing is over-heated, and prevents seizure. |
Used
for making heavy duty bearings. |
| 6 |
Gun
metal |
Copper
- 88
Tin -
10
Zinc - 2 |
Tough,
strong and hard, suitable for sound castings. |
Used
for making bearings. |
| 7 |
Bell
metal |
Copper
- 80
Tin -
20 |
Hard
and brittle. |
Used
for making bells |
| 8 |
Naval
brass |
Copper
- 60
Zinc -
39
Tin - 1 |
Has
high strength and resists corrosion. |
Used
for marine and engineering castings, condenser tubes, pump
parts, motor boat shaftings etc. |
| 9 |
Monel
metal |
Nickel -
68
Copper - 29
Iron -
3
Little quantity of manganese silicon and carbon |
High
corrosion resistance, excellent mechanical properties. |
Used
for condenser tubes propellers, pump fittings, turbine blades
and chemical and food-handling plants. |
|
