Coefficients of linear thermal expansion

 

Coefficient (per degree. C x 10-4)

Material

Min

Max

Aluminium

 

0.24

Brass

 

0.19

Copper

 

0.17

Glass (flat)

 

0.08

Iron (cast)

0.10

0.13

Iron (wrought)

 

0.12

Mild steel

 

0.12

Lead

 

0.29

Wood (hard or soft)

Parallel to grain
Across grain

 

0.04
0.30

 

0.06
0.70

Zinc – high purity

 

0.40

Die-cast alloy to BS1004

 

0.27

Zn-Ti alloy sheeting

 

0.21