Material

Linear

Volumetric

Notes

coefficient α

coefficient α_V

at 20 °C

at 20 °C

(10⁻⁶ K⁻¹)

(10⁻⁶ K⁻¹)

Aluminium

23.1

69

Aluminium nitride

5.3

4.2

Benzocyclobutene

42

126

Brass

19

57

Carbon steel

10.8

32.4

CFRP

– 0.8

Anisotropic

Fiber direction

Concrete

12

36

Copper

17

51

Diamond

1

3

Ethanol

250

750

Gallium(III) arsenide

5.8

17.4

Gasoline

317

950

Glass

8.5

25.5

Glass, borosilicate

3.3

9.9

Gold

14

42

Indium phosphide

4.6

13.8

Invar

1.2

3.6

Iron

11.8

33.3

Kapton

20

60

DuPont Kapton 200EN

Lead

29

87

Macor

9.3

Magnesium

26

78

Mercury

61

182

Molybdenum

4.8

14.4

Nickel

13

39

Oak

54

Perpendicular to the grain

Douglas-fir

27

75

radial

Douglas-fir

45

75

tangential

Douglas-fir

3.5

75

parallel to grain

Platinum

9

27

PP

150

450

PVC

52

156

Quartz (fused)

0.59

1.77

Quartz

0.33

1

Rubber

disputed

disputed

see Talk

Sapphire

5.3

Parallel to C axis, or [001]

Silicon Carbide

2.77

8.31

Silicon

2.56 {Z. Phys. B - Condensed Matter 48, 17-21 (1982),
P. Becker, P. Seyfried, and H. Siegert}

9

Silver

18

54

Sitall

0±0.15

0±0.45

average for −60 °C to 60 °C

Stainless steel

10.1 ~ 17.3

51.9

Steel

11.0 ~ 13.0

33.0 ~ 39.0

Depends on composition

Titanium

8.6

11–14

Tungsten

4.5

13.5

Water

69

207

YbGaGe

≐0

≐0

Refuted

Zerodur

≈0.02

at 0...50 °C