Thickness, ins.

1/16

1/8

3/16

1/4

5/16

3/8

7/16

1/2

5/8

3/4

7/8

1

Weight, lbs. per sq. ft.

2.5

5

7.5

10

12.5

15

17.5

20

25

30

35

40

For cast iron deduct l-20th.

To find Weight of Boiler Plates in cwts.

Area sq. ft./No. corresponding to thickness in table below.=

Weight, cwts.

Thickness.

Divisor.

In.

1/8

22.4

3/16

15.

1/4

11.2

5/16

9.

Thickness.

Divisor.

In.

3

7.5

7/16

6.3

1/2

5.6

9/16

5.

Thickness.

Divisor,

In

5/8

4.48

3/4

3.73

7/8

3.2

1

2.8