Side and diameter in inches.

Square iron in pounds.

Round Iron in pounds.

¼

.209

.164

5/16

.326

.250

3/8

.470

.369

7/16

.640

.503

½

.835

.656

9/16

1.057

.831

5/8

1 305

1.025

11/16

1.579

1.241

¾

1.879

1.476

13/16

2205

1.732

7/8

2.558

2.011

15/16

2 936

2.306

1

3 340

2 624

1 1/8

4.228

3.321

1¼

5.219

4099

1 3/8

6.315

4 961

1 ½

7.516

5.913

Size and diam eter in inches.

Square Iron in pounds.

Bound Iron in pounds.

1 5/8

8820

6.928

1 3/4

10 229

8.043

1 1/8

11.743

9.224

2

13.300

10.496

2 1/8

15.083

11.846

2¼

16.909

18.288

2 3/8

18.840

14.797

2 ½

20.875

16.396

2 5/8

23.115

18.146

21

25.259

19.842

27/8

27.608

21.684

3

30.070

23.653

3 1/8

32 618

25.620

3¼

35.279

27.709

3 3/8

38.045

29.881

3½

40.910

82.170

5 5/8

43.890

34.472

Side and diameter in inches.

Square iron in pounds.

Round Iron in pounds.

3 3/4

46.969

36 895

3 7/8

60 153

39.390

4

53.440

41.984

4ft

56.833

44 637

4 1/4

6'

47.385

4 3/8

63 930

50 .211

4 1/2

67.637

53132

4 5/8

71 445

56 113

4 3/4

75 359

59 187

4 7/8

79 378

62344

5

83.510

65 585

5 1/4

92 459

72.618

6}

101.036

79 370

5 3/4

110.429

86 731

6

120 243

94.610

The weight of bar iron being 1,

• . ««

" cast

iron -

• • 14

" Steel,

"

" copper

1 16