LINEAR COEFFICIENTS OF EXPANSION a

SUBSTANCE

n x 10-6
C

n x 10-6
F

Aluminum

25.0

13.89

Brass (Yellow)

18.9

10.5

Chromium Carbide

8.1

4.5

Copper

16.6

9.22

Iron (Cast)

12.0

6.67

Nickel

13

7.22

Platinum

9.0

5.0

Steel (Hardened)

11.5

6.4

Steel (Carbon)

11.3

6.30

Tungsten

4.50

2.50

Tungsten Carbide

5.40

3.0

Zinc

35.0

19.4

Lf = Lo (1 + a D t) D L = (Lo) (a ) (D t)

Where:

Lf = Length Final

Lo = Length Original

D L = Change in Length

a = Linear Coefficient of Expansion

t1 = Original Temperature

t2 = Final Temperature

D t = Change in Temperature (t2 - t1)

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