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Controlled Expansion Alloy Thermal Expansion Table
| Linear Coefficient of Thermal Expansion (cm per cm per °C x 10-6) | |||||||
|
Kovar |
Alloy 52 |
Alloy 48 |
Alloy 46 |
Alloy 42 |
Alloy 42-6 |
Invar |
Degree C |
|||||||
30-100 |
-- |
10.5 |
9.4 |
8.2 |
4.8 |
-- |
0.8 - 1.6 |
30-150 |
-- |
10.5 |
9.4 |
8.1 |
4.6 |
-- |
-- |
30-200 |
5.5 |
10.4 |
9.4 |
7.9 |
4.5 |
-- |
1.3 - 2.1 |
30-250 |
-- |
10.4 |
9.3 |
7.8 |
4.5 |
-- |
-- |
30-300 |
5.1 |
10.2 |
8.8 |
7.5 |
4.0 - 4.7 |
8.2 |
4.92 |
30-325 |
-- |
-- |
-- |
-- |
4.7- |
-- |
-- |
30-350 |
-- |
10.2 |
9.0 |
7.1 - 7.8 |
5.0 |
8.5-9.2 |
6.2 - 7.0 |
30-375 |
-- |
-- |
-- |
7.5 |
5.5 |
-- |
-- |
30-400 |
4.6 - 5.2 |
10.1 |
8.2 - 9.2 |
7.5 |
6.0 |
10.0 |
7.8 |
30-425 |
-- |
-- |
8.9 |
7.6 |
-- |
9.7-10.4 |
-- |
30-450 |
5.1 - 5.5 |
9.6 - 10.7 |
9.0 |
7.9 |
6.7 - 7.4 |
10.6 |
8.5 - 9.2 |
30-475 |
-- |
10.1 |
9.3 |
-- |
-- |
-- |
-- |
| 30-500 | 6.2 |
10.0 |
9.4 |
8.2 - 8.9 |
8.0 |
11.2 |
9.7 |
| 30-525 | -- |
10.4 |
-- |
-- |
-- |
-- |
-- |
30-550 |
-- |
10.2 - 10.7 |
9.6 - 10.3 |
9.3 |
8.8 |
11.7 |
-- |
30-600 |
7.9 |
10.8 |
10.4 |
9.8 |
9.5 |
12.2 |
11.4 |
30-700 |
9.3 |
11.7 |
11.3 |
10.7 |
10.5 |
13.0 |
12.7 |
30-800 |
10.4 |
12.5 |
12.1 |
11.6 |
11.4 |
13.7 |
13.5 |
30-900 |
11.5 |
13.3 |
13.0 |
12.5 |
12.3 |
14.6 |
13.9 |
30-1000 |
-- |
14.2 |
13.9 |
13.4 |
13.2 |
15.4 |
-- |
| Underscored face values are the limits specified in MIL-I-23011C | |||||||
ED FAGAN Europe Ltd. supplies the highest quality special purpose alloys and metals for Aerospace/Aviation, Defence, Magnetic, Electronics, Telecommunications, Lighting, Optical, Ceramics, Heat Treating, Medical, and other high-technology industries.
Controlled Expansion Alloys
Ed Fagan Europe Ltd. stocks a variety of similar alloys for low expansion, controlled expansion, glass-to-metal or ceramic sealing applications that may also satisfy your needs. EFI carries:Invar
Kovar
42 Alloy
42-6 Alloy
46 Alloy
48 Alloy
52 Alloy
And we also have a large selection of other types of specialty metals and alloys for high technology applications, including:
Electrical/Electronic Nickel
Soft Magnetic Alloys
Refractory Metals and Alloys
Hard to Find Materials