|
Coefficient
of Thermal Expansion
|
Material
|
10-6
in./in.*/°F
|
10-5
in./in.*/°C
|
|
High
|
Low
|
High
|
Low
|
| Zinc
& its Alloys |
19.3 |
10.8 |
3.5 |
1.9 |
| Lead
& its Alloys |
16.3 |
14.4 |
2.9 |
2.6 |
| Magnesium
Alloys |
16 |
14 |
2.8 |
2.5 |
| Aluminum
& its Alloys |
13.7 |
11.7 |
2.5 |
2.1 |
| Tin
& its Alloys |
13 |
|
2.3 |
|
| Tin
& Aluminum Brasses |
11.8 |
10.3 |
2.1 |
1.8 |
| Plain
& Leaded Brasses |
11.6 |
10 |
2.1 |
1.8 |
| Silver |
10.9 |
|
2.0 |
|
| Cr-Ni-Fe
Superalloys |
10.5 |
9.2 |
1.9 |
1.7 |
| Heat
Resistant Alloys (cast) |
10.5 |
6.4 |
1.9 |
1.1 |
| Nodular
or Ductile Irons (cast) |
10.4 |
6.6 |
1.9 |
1.2 |
| Stainless
Steels (cast) |
10.4 |
6.4 |
1.9 |
1.1 |
| Tin
Bronzes (cast) |
10.3 |
10 |
1.8 |
1.8 |
| Austenitic
Stainless Steels |
10.2 |
9 |
1.8 |
1.6 |
| Phosphor
Silicon Bronzes |
10.2 |
9.6 |
1.8 |
1.7 |
| Coppers |
9.8 |
7.7 |
1.8 |
1.4 |
| Nickel-Base
Superalloys |
9.8 |
|
1.8 |
|
| Aluminum
Bronzes (cast) |
9.5 |
9 |
1.8 |
1.6 |
| Cobalt-Base
Superalloys |
9.4 |
6.8 |
1.7 |
1.2 |
| Beryllium
Copper |
9.3 |
|
1.7 |
|
| Cupro-Nickels
& Nickel Silvers |
9.5 |
9 |
1.7 |
1.6 |
| Nickel
& its Alloys |
9.2 |
6.8 |
1.7 |
1.2 |
| Cr-Ni-Co-Fe
Superalloys |
9.1 |
8 |
1.6 |
1.4 |
| Alloy
Steels |
8.6 |
6.3 |
1.5 |
1.1 |
| Carbon
Free-Cutting Steels |
8.4 |
8.1 |
1.5 |
1.5 |
| Alloy
Steels (cast) |
8.3 |
8 |
1.5 |
1.4 |
| Age
Hardenable Stainless Steels |
8.2 |
5.5 |
1.5 |
1.0 |
| Gold |
7.9 |
|
1.4 |
|
| High
Temperature Steels |
7.9 |
6.3 |
1.4 |
1.1 |
| Ultra
High Strength Steels |
7.6 |
5.7 |
1.4 |
1.0 |
| Malleable
Irons |
7.5 |
5.9 |
1.3 |
1.1 |
| Titanium
Carbide Cermet |
7.5 |
4.3 |
1.3 |
.8 |
| Wrought
Irons |
7.4 |
|
1.3 |
|
| Titanium
& its Alloys |
7.1 |
4.9 |
1.3 |
.9 |
| Cobalt |
6.8 |
|
1.2 |
|
| Martensitic
Stainless Steels |
6.5 |
5.5 |
1.2 |
1.0 |
| Nitriding
Steels |
6.5 |
|
1.2 |
|
| Palladium |
6.5 |
|
1.2 |
|
| Beryllium |
6.4 |
|
1.1 |
|
| Chromium
Carbide Cermet |
6.3 |
5.8 |
1.1 |
1.0 |
| Thorium |
6.2 |
|
1.1 |
|
| Ferritic
Stainless Steels |
6 |
5.8 |
1.1 |
1.0 |
| Gray
Irons (cast) |
6 |
|
1.1 |
|
| Beryllium
Carbide |
5.8 |
|
1.0 |
|
| Low
Expansion Nickel Alloys’ |
5.5 |
1.5 |
1.0 |
.3 |
| Beryllia
&, Thoria |
5.3 |
|
.9 |
|
| Alumina
Cermets |
5.2 |
4.7 |
.9 |
.8 |
| Molybdenum
Disilicide |
5.1 |
|
.9 |
|
| Ruthenium |
5.1 |
|
.9 |
|
| Platinum |
4.9 |
|
.9 |
|
| Vanadium |
4.8 |
|
.9 |
|
| Rhodium |
4.6 |
|
.8 |
|
| Tantalum
Carbide |
4.6 |
|
.8 |
|
| Boron
Nitride |
4.3 |
|
.8 |
|
| Columbium
& its Alloys |
4.1 |
3.8 |
.7 |
.68 |
| Titanium
Carbide |
4.1 |
|
.7 |
|
| Steatite |
4 |
3.3 |
.7 |
.6 |
| Tungsten
Carbide Cermet |
3.9 |
2.5 |
.7 |
.4 |
| Iridium |
3.8 |
|
.7 |
|
| Alumina
Ceramics |
3.7 |
3.1 |
.7 |
.6 |
| Zirconium
Carbide |
3.7 |
|
.7 |
|
| Osmium
and Tantalum |
3.6 |
|
.6 |
|
| Zirconium
& its Alloys |
3.6 |
3.1 |
.6 |
.55 |
| Hafnium |
3.4 |
|
.6 |
|
| Zirconia |
3.1 |
|
.6 |
|
| Molybdenum
& its Alloys |
3.1 |
2.7 |
.6 |
.5 |
| Silicon
Carbide |
2.4 |
2.2 |
.4 |
.39 |
| Tungsten |
2.2 |
|
.4 |
|
| Electrical
Ceramics |
2 |
|
.4 |
|
| Zircon |
1.8 |
1.3 |
.3 |
.2 |
| Boron
Carbide |
1.7 |
|
.3 |
|
| Carbon
and Graphite |
1.5 |
1.3 |
.3 |
.2 |
|
|
|
Mate
ri
|
