Linear thermal expansion coefficients for copper and copper alloys including bronze and brass are given in the following chart.
|
Linear Thermal Expansion Coefficient Values for Copper Alloys |
|
Material |
Temp. |
Coefficient of Thermal Expansion |
|
10-6 (°C)-1 |
10-6 (°F)-1 |
|
Wrought Coppers |
|
Pure copper |
20°C / 68°F |
16.5 |
9.2 |
|
Electrolytic tough pitch copper (ETP) |
20-100°C / 68-212°F |
16.8 |
9.4 |
|
Free-machining copper, 0.5% Te or 1% Pb |
20-300°C / 68-572°F |
17.7 |
9.9 |
|
Wrought Alloys |
|
Commercial bronze, 90% |
20-300°C / 68-572°F |
18.4 |
10.3 |
|
Red brass, 85% |
18.7 |
10.4 |
|
Low brass, 80% |
19.1 |
10.6 |
|
Cartridge brass, 70% |
19.9 |
11.1 |
|
Yellow brass |
20.3 |
11.2 |
|
Muntz metal |
20.8 |
11.5 |
|
Leaded commercial bronze |
18.4 |
10.2 |
|
Free-cutting brass |
20.5 |
11.4 |
|
Forging brass |
20.7 |
11.5 |
|
Naval brass |
21.2 |
11.8 |
|
Manganese bronze (A) |
21.2 |
11.8 |
|
Free-cutting phosphor bronze |
17.3 |
9.6 |
|
Aluminum bronze (Class 1) |
16.8 |
9.4 |
|
Beryllium copper |
17.8 |
9.9 |