Substances.

Heat Conductivity.

Electrical Conductivity.

Silver.......

100.0

100.0

Copper........

73.6

73.3

Gold..............

53.2

58.5

Brass..........

23.6

21.5

Zinc...............

19.9

Tin................

14.5

22.6

Steel..............

12.0

Iron.............

11.9

13.0

Lead...........

8.5

10.7

Platinum.........

6.4

10.3

Palladium.....

6.3

Bismuth...........

1.8

1.9