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- Coefficients of Thermal Expansion Chart
Coefficients of Thermal Expansion Chart
|
Material |
10-6
in./in.*/°F |
10-5
in./in.*/°C |
||
|
High |
Low |
High |
Low |
|
|
Zinc & its Alloysc |
19.3 |
10.8 |
3.5 |
1.9 |
|
Lead & its Alloysc |
16.3 |
14.4 |
2.9 |
2.6 |
|
Magnesium Alloysb |
16 |
14 |
2.8 |
2.5 |
|
Aluminum &
its Alloysc |
13.7 |
11.7 |
2.5 |
2.1 |
|
Tin & its Alloysc |
13 |
- |
2.3 |
- |
|
Tin & Aluminum
Brassesc |
11.8 |
10.3 |
2.1 |
1.8 |
|
Plain & Leaded
Brassesc |
11.6 |
10 |
2.1 |
1.8 |
|
Silverc |
10.9 |
- |
2.0 |
- |
|
Cr-Ni-Fe Superalloysd |
10.5 |
9.2 |
1.9 |
1.7 |
|
Heat Resistant
Alloys (cast)d |
10.5 |
6.4 |
1.9 |
1.1 |
|
Nodular or Ductile
Irons (cast)c |
10.4 |
6.6 |
1.9 |
1.2 |
|
Stainless Steels
(cast)d |
10.4 |
6.4 |
1.9 |
1.1 |
|
Tin Bronzes (cast)c |
10.3 |
10 |
1.8 |
1.8 |
|
Austenitic Stainless
Steelsc |
10.2 |
9 |
1.8 |
1.6 |
|
Phosphor Silicon
Bronzesc |
10.2 |
9.6 |
1.8 |
1.7 |
|
Coppersc |
9.8 |
- |
1.8 |
- |
|
Nickel-Base Superalloysd |
9.8 |
7.7 |
1.8 |
1.4 |
|
Aluminum Bronzes
(cast)c |
9.5 |
9 |
1.7 |
1.6 |
|
Cobalt-Base Superalloysd |
9.4 |
6.8 |
1.7 |
1.2 |
|
Beryllium Copperc |
9.3 |
- |
1.7 |
- |
|
Cupro-Nickels &
Nickel Silversc |
9.5 |
9 |
1.7 |
1.6 |
|
Nickel & its
Alloysd |
9.2 |
6.8 |
1.7 |
1.2 |
|
Cr-Ni-Co-Fe Superalloysd |
9.1 |
8 |
1.6 |
1.4 |
|
Alloy Steelsd |
8.6 |
6.3 |
1.5 |
1.1 |
|
Carbon Free-Cutting
Steelsd |
8.4 |
8.1 |
1.5 |
1.5 |
|
Alloys Steels (cast)d |
8.3 |
8 |
1.5 |
1.4 |
|
Age Hardenable
Stainless Steelsd |
8.2 |
5.5 |
1.5 |
1.0 |
|
Goldc |
7.9 |
- |
1.4 |
- |
|
High Temperature
Steelsd |
7.9 |
6.3 |
1.4 |
1.1 |
|
Ultra High Strength
Steelsd |
7.6 |
5.7 |
1.4 |
1.0 |
|
Malleable Ironsc |
7.5 |
5.9 |
1.3 |
1.1 |
|
Titanium Carbide
Cermetd |
7.5 |
4.3 |
1.3 |
.8 |
|
Wrought Ironsc |
7.4 |
- |
1.3 |
- |
|
Titanium &
its Alloysd |
7.1 |
4.9 |
1.3 |
.9 |
|
Cobaltd |
6.8 |
- |
1.2 |
- |
|
Martensitic Stainless
Steelsc |
6.5 |
5.5 |
1.2 |
1.0 |
|
Nitriding Steelsd |
6.5 |
- |
1.2 |
- |
|
Palladiumc |
6.5 |
- |
1.2 |
- |
|
Berylliumb |
6.4 |
- |
1.1 |
- |
|
Chromium Carbide
Cermetc |
6.3 |
5.8 |
1.1 |
1.0 |
|
Thoriumb |
6.2 |
- |
1.1 |
- |
|
Ferritic Stainless
Steelsc |
6 |
5.8 |
1.1 |
1.0 |
|
Gray Irons (cast)c |
6 |
- |
1.1 |
- |
|
Beryllium Carbided |
5.8 |
- |
1.0 |
- |
|
Low Expansion Nickel
Alloysc |
5.5 |
1.5 |
1.0 |
.3 |
|
Beryllia & Thoriae |
5.3 |
- |
.9 |
- |
|
Alumina Cermetsd |
5.2 |
4.7 |
.9 |
.8 |
|
Molybdenum Disilicidec
|
5.1 |
- |
.9 |
- |
|
Rutheniumb
|
5.1 |
- |
.9 |
- |
|
Platinumc
|
4.9 |
- |
.9 |
- |
|
Vanadiumb
|
4.8 |
- |
.9 |
- |
|
Rhodiumb |
4.6 |
- |
.8 |
- |
|
Tantalum Carbided |
4.6 |
- |
.8 |
- |
|
Boron Nitrided |
4.3 |
- |
.8 |
- |
|
Columbium & its
Alloys |
4.1 |
3.8 |
.7 |
.68 |
|
Titanium Carbided |
4.1 |
- |
.7 |
- |
|
Steatitec |
4 |
3.3 |
.7 |
.6 |
|
Tungsten Carbide
Cermetc |
3.9 |
2.5 |
.7 |
.4 |
|
Iridiumb |
3.8 |
- |
.7 |
- |
|
Alumina Ceramicsc |
3.7 |
3.1 |
.7 |
.6 |
|
Zirconium Carbided |
3.7 |
- |
.7 |
- |
|
Osmium and Tantalumb |
3.6 |
- |
.6 |
- |
|
Zirconium & its
Alloysb |
3.6 |
3.1 |
.6 |
.55 |
|
Hafniumb |
3.4 |
- |
.6 |
- |
|
Zirconiae |
3.1 |
- |
.6 |
- |
|
Molybdenum & its
Alloys |
3.1 |
2.7 |
.6 |
.5 |
|
Silicon Carbidee |
2.4 |
2.2 |
.4 |
.39 |
|
Tungstenb |
2.2 |
- |
.4 |
- |
|
Electrical Ceramicsc |
2 |
- |
.4 |
- |
|
Zirconc |
1.8 |
1.3 |
.3 |
.2 |
|
Boron Carbidee |
1.7 |
- |
.3 |
- |
|
Carbon and Graphitec |
1.5 |
1.3 |
.3 |
.2 |
(* or mm/mm)
aValues represent high and low sides of a range of typical values.
bValue at room temperature only.
cValue for a temperature range between room temperature and 212-750° F/100-390° C.
dValue for a temperature range between room temperature and 1000-1800° F/540-980° C.
eValue for a temperature range between room temperature and 2200-2875° F/1205-1580° C.

