Coefficient of Thermal Expansion
Values represent high and low sides of a range of typical values. |
Value at room temperature only. |
Value for a temperature range between room temperature and 212-750°F/100-390°C |
Value for a temperature range between room temperature and 1000-1800°F/540-980°C |
Value for a temperature range between room temperature and 2200-2875°F/1205-1580°C |
Material |
10-6, /°F |
10-5, */°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 |
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