hollow structure

7/25/2019 Hollow Structure

1/8

H O L L O W S T R U C T U R A L S E C T I O N S


2/8

Wev e been known as an outstanding quality producer all the years weve beenin operation. Quality control has always been a priority, one in which

management and workers both take pride.

At its state-of-the-art mills in Longview, Washington

and Calgary, Alberta, Prudential Steel produces steel

pipe, tubes and hollow structural sections which have

earned the company a first-class reputation for

product quality and customer service.

And whether its for agricultural or architectural

purposes, H.S.S. has a high strength-to-weight ratio

which makes it the product of choice for a variety

of projects.

The integrity of Prudential Steels production of

H.S.S. assures you of a product with exceptional

dimensional accuracy in areas such as straightness,

corner radius, and wall thickness.

For ease of detailing, fabrication and erection,

H.S.S. produced by Prudential Steel is a product you

can rely on.

In fact, Prudential Steels H.S.S. makes it the

product of choice for projects in many industries:construction, telecommunications, transportation,

materials handling, agriculture, mining, and

petroleum. Whatever your project, Prudential Steel

has, in stock, the range of sizes, shapes and grades to

meet your needs for immediate delivery.

OUTSIDE DIAM ETER WALL THICKNESS

HOLLOW STRUCTURAL SECTIONS SPECIFICATIONS

P R U D E N T I A L S T E E L

ROUNDS 1.66 to 12.750 .083 to .500

SQUARES 1.00 x 1.00 to 10.00 x 10.00 .083 to .500

RECTANGLES 2.00 x 1.00 to 12.00 x 8.00 .083 to .500


3/81

ASTM A50 0-9 6STANDARD SPECIFICATION FOR COLD-FORM ED WELDED AND SEAM LESS CARBON STEEL

STRUCTURAL TUBING IN ROUNDS AND SHAPES

CHEM ICAL REQUIREMENTS

M ECHANICAL PROPERTIES

SPECIFIED M ILL LENGTH TOLERANCES FOR

STRUCTURAL TUBING

OUTSIDE DIM ENSION TOLERANCES FOR SQUARE

AND RECTANGULAR STRUCTURAL TUBING

PERMISSIBLE VARIATION IN WALL THICKNESS

Composition, %Grades A, B and D Grade C

Element Heat Product Heat ProductAnalysis Analysis Analysis Analysis

Carbon, max 0.26 0.30 0.23 0.27

Manganese, max 1.35 1.40

Phosphorus, max 0.035 0.045 0.035 0.045

Sulfur, max 0.035 0.045 0.035 0.045

Copper, when copper

steel is specified, min. 0.20 0.18 0.20 0.18

Grade A Grade B Grade C Grade D

Tensile Strength, Min PSI 45000 58000 62000 58000

Yield Strength, Min PSI 33000 42000 46000 36000

Elongation in 2 in. min %A 25B 23C 21D 23C

This specification covers cold-formed welded and seamless carbon steel round, square, rectangular, or special shapestructural tubing for welded, riveted, or bolted construction of bridges and buildings, and for general structural purposes.

22 ft. Over 22 to 44ft.

and Under incl.

Over Under Over Under

Length tolerance for 1/2 1/4 3/4 1/4

specified mill length,

in.

Wall thickness shall not deviate by more than 10% from thenominal wall thickness specified, except that the weld seam ofwelded sections may overrun the maximum thickness tolerance.In the case of rectangular sections, wall thickness shall be mea-sured at the centre of the flat.Squareness of Sides - For square or rectangular structural tubing,adjacent sides may deviate from 90 by a tolerance of 2 max.Radius of Corners- For square or rectangular structural tubing,the radius of any outside corner of the section shall not exceed

three times the specified wall thickness.

Straightness -The permissible variation for straightness of struc-

tural tubing shall be 1/8 in. times the number of feet of total

length divided by 5.

Maximum Twist inthe First 3 ft.

Specified Dimension of and in eachLongest Side, in. additional 3 ft.

in.

1 12 and under 0.050

Over 1 12 to 2 12, incl 0.062

Over 2 12 to 4, incl 0.075

Over 4 to 6, incl 0.087

Over 6 to 8, incl 0.100

Over 8 0.112

Round Structural Tubing

Grade A Grade B Grade C Grade D

Tensile Strength, Min PSI 45000 58000 62000 58000

Yield Strength, Min PSI 39000 46000 50000 36000

Elongation in 2 in. min, %A 25B 23C 21D 23C

Shaped Structural Tubing

AThe minimum elongation values specified apply only to testing

performed prior to shipment because of the possibility of strain

aging. Tests performed after shipment may show values below

those stated.B Applies to specified wall thicknesses 0.120 in. and over. For

wall thicknesses under 0.120 in., the minimum elongation shall

be calculated by the formula: percent elongation in 2in. = 56t +

17.5.C Applies to specified wall thicknesses 0.180 in. and over. For

wall thicknesses under 0.180 in., the minimum elongation shall

be calculated by the formula: percentage elongation in 2in. =

61t +12.D Applies to specified wall thicknesses 0.120 in. and over. For

lighter wall thicknesses, elongation shall be by agreement with

the manufacturer.NOTE:The following table gives calculated minimum values for

longitudinal strip tests: Elongation in 2in., min.%

Wall Thickness, in. Grade A Grade B

0.180 230.165 220.148 210.134 200.120 25 19.50.109 23.5 190.095 23 180.083 22 170.065 21 160.049 20 150.035 19.5 14

Large Flat Dimension

Outside Large Flat Dimension Tolerance, A plus and minus,

in. in.

2 12 and under 0.020

Over 2 12 to 3 12, incl 0.025

Over 3 12 to 5 12, incl 0.030

Over 5 12 0.01 times large flatdimensions

A

Tolerances include allowance for convexity or concavity. For rec-

tangular tubing having a ratio of outside large to small flat dimen-

sion less than 1.5, and for square tubing, the tolerance on small flat

dimension shall be identical to the large flat dimension tolerance.

For rectangular tubing having a ratio of outside large to small flat

dimension in the range of 1.5 to 3.0 inclusive, the tolerance on

small flat dimension shall be 1.5 times the large flat dimension

tolance. For rectangular tubing having a ratio of outside large to

small flat dimension greater than 3.0, the tolerance on small flat

dimension shall be 2.0 times the large flat dimension tolerance.

TWIST TOLERANCES FOR SQUARE AND

RECTANGULAR STRUCTURAL TUBING


4/8

Hollow St r uc t ur a l Sec t ions Squar e xyPROPERTIES AN D D IM ENSIONS

Outside

Dimensions

in. x in.

12 x 12

10 x 10

8 x 8

7 x 7

6 x 6

5 x 5

4 x 4

3 1/2 x 3 1/2

3 x 3

2 1/2 x 2 1/2

2 x 2

1 1/2 x 1 1/2

1 1/4 x 1 1/4

1 x 1

Wall

Thickness

In.

.500

.438

.375

.313

.250

.500

.438

.375

.313

.250

.500

.438

.375

.313

.250

.188

.500

.438

.375

.313

.250

.188

.500

.438

.375

.313

.250

.188

.500

.438

.375

.313

.250

.188

.125

.375

.313

.250

.188

.125

.375

.313

.250

.188

.125

.375

.313

.250

.188

.125

.250

.188

.150

.125

.250

.188

.150

.125

.110

.100

.188

.150

.125

.100

.150

.125

.100

.125

.100

Mass

Lb./Ft.

76.1

67.3

58.1

48.939.4

62.5

55.4

47.9

40.4

32.6

48.9

43.4

37.7

31.9

25.8

19.7

42.1

37.5

32.6

27.6

22.4

17.1

35.2

31.5

27.5

23.4

19.0

14.6

28.4

25.5

22.4

19.1

15.6

12.0

8.2

17.3

14.9

12.29.45

6.45

14.7

12.7

10.5

8.17

5.68

12.17

10.6

8.81

6.89

4.83

7.11

5.61

4.60

3.91

5.414.33

3.58

3.06

2.72

2.50

3.05

2.56

2.21

1.82

2.05

1.78

1.48

1.35

1.14

Area

In.2

22.4

19.8

17.1

14.411.6

18.3

16.3

14.1

11.9

9.59

14.4

12.8

11.1

9.37

7.59

5.78

12.4

11.0

9.58

8.12

6.59

5.04

10.4

9.25

8.08

6.87

5.59

4.28

8.36

7.50

6.58

5.62

4.59

3.53

2.41

5.08

4.36

3.592.78

1.90

4.33

3.74

3.09

2.40

1.67

3.58

3.11

2.59

2.03

1.42

2.09

1.65

1.35

1.15

1.591.27

1.05

.899

.799

.734

.896

.752

.648

.534

.603

.524

.435

.398

.334

I

In.4

485.0

435.0

381.0

324.0265.0

271.0

244.0

215.0

184.0

151.0

131.0

119.0

106.0

91.0

75.1

58.4

84.5

77.1

68.7

59.5

49.4

38.6

50.4

46.3

41.6

36.3

30.3

23.9

27.0

25.1

22.7

20.1

16.9

13.4

9.16

10.7

9.57

8.216.61

4.69

6.70

6.09

5.28

4.30

3.15

3.70

3.57

3.15

2.60

1.94

1.68

1.42

1.22

1.06

.761

.668

.582

.514

.466

.429

.241

.218

.197

.170

.115

.106

.093

.048

.043

S

In.3

80.9

72.5

63.4

54.144.1

54.2

48.8

42.9

36.7

30.1

32.8

29.8

26.4

22.8

18.8

14.6

24.2

22.0

19.6

17.0

14.1

11.0

16.8

15.4

13.9

12.1

10.1

7.95

10.8

10.0

9.10

8.03

6.78

5.38

3.66

5.34

4.79

4.113.31

2.34

3.83

3.48

3.02

2.46

1.80

2.47

2.38

2.10

1.74

1.29

1.35

1.14

.973

.848

.761

.666

.582

.514

.466

.429

.322

.291

.263

.227

.184

.169

.149

.095

.086

r

In.

4.66

4.69

4.72

4.754.78

3.84

3.87

3.90

3.93

3.96

3.02

3.06

3.09

3.12

3.15

3.18

2.62

2.65

2.68

2.71

2.74

2.77

2.21

2.24

2.27

2.30

2.33

2.36

1.80

1.83

1.86

1.89

1.92

1.95

1.95

1.45

1.48

1.511.54

1.57

1.24

1.28

1.31

1.34

1.37

1.02

1.07

1.10

1.13

1.17

.898

.929

.948

.961

.692

.725

.744

.756

.764

.765

.519

.530

.551

.564

.437

.450

.463

.346

.359

Z

In.3

95.4

85.0

73.9

62.650.8

64.6

57.7

50.4

42.8

34.9

39.7

35.7

31.3

26.8

21.9

16.87

29.5

26.6

23.5

20.1

16.5

12.8

20.8

18.9

16.8

14.4

11.9

9.27

14.3

12.5

11.2

9.70

8.07

6.31

4.36

6.70

5.90

4.963.92

2.74

4.90

4.35

3.69

2.94

2.07

3.52

3.03

2.60

2.10

1.50

1.71

1.40

1.17

1.01

.998

.840

.714

.621

.558

.513

.422

.369

.326

.275

.239

.214

.184

.125

.109

Torsional Constant

J

In.4

778.0

692.0

600.0

507.0411.0

441.0

393.0

342.0

290.0

235.0

218.0

195.0

171.0

145.0

119.0

91.69

142.0

128.0

112.0

95.9

78.5

60.4

86.4

78.1

69.0

59.2

48.7

37.6

47.5

43.3

38.5

33.3

27.5

21.4

14.38

18.6

16.3

13.610.7

7.41

11.9

10.5

8.89

7.04

5.01

7.06

6.33

5.40

4.32

3.12

2.97

2.41

2.01

1.72

1.391.17

.985

.852

.764

.705

.422

.384

.338

.284

.209

.187

.159

.087

.076

Surface

Area

Ft.2/Ft.

3.86

3.87

3.89

3.913.93

3.19

3.21

3.23

3.24

3.26

2.52

2.54

2.56

2.58

2.60

2.61

2.19

2.21

2.23

2.24

2.26

2.28

1.86

1.87

1.89

1.91

1.93

1.95

1.52

1.54

1.56

1.58

1.60

1.61

1.63

1.23

1.24

1.261.28

1.30

1.06

1.08

1.10

1.11

1.131

.893

.910

.928

.946

.964

.762

.779

.790

.798

.595

.613

.624

.631

.635

.638

.446

.457

.464

.471

.374

.381

.389

.298

.305

SheerConstant

Crt

In.2

10.0

8.98

7.88

6.735.50

8.00

7.23

6.38

5.48

4.50

6.00

5.47

4.88

4.22

3.50

2.73

5.00

4.60

4.13

3.60

3.00

2.35

4.00

3.72

3.38

2.97

2.50

1.97

3.00

2.85

2.63

2.35

2.00

1.60

1.13

1.88

1.72

1.501.22

.875

1.50

1.41

1.25

1.03

.75

1.13

1.09

1.00

.846

.625

.750

.658

.570

.501

.500

.469

.420

.375

.343

.320

.281

.270

.250

.220

.195

.188

.170

.125

.120

2


5/8

Hollow St r uc t ur al Sec t ions Rec t angular xyPROPERTIES AN D D IM ENSIONS

Outside

Dimensions

in. x in.

12 x 8

10 x 6

9 x 7

8 x 6

8 x 4

8 1/2 x 2

7 x 5

6 x 4

6 x 3

6 x 2

5 x 3

5 x 2

4 x 3

4 x 2

3 1/2 x 2 1/2

3 1/2 x 2

3 x 2

2 x 1

In.

.500

.438

.375

.313

.250

.500

.438

.375

.313

.250

.250

.500

.438

.375

.313

.250

.188

.500

.438

.375

.313

.250

.188

.125

.500

.438

.375

.313

.250

.188

.500

.438

.375

.313

.250

.188

.375

.250

.188

.375

.313

.250

.188

.125

.375

.313

.250

.188

.375

.313

.250

.188

.125

.109

.375

.313

.250

.188

.313

.250

.188

.150

.125

.313

.250

.188

.150

.125

.250

.188

.125

.313

.250

.188

.150

.125

.125

.100

Lb./Ft.

62.5

55.4

47.9

40.4

32.6

48.9

43.4

37.7

31.9

25.8

25.8

42.1

37.5

32.6

27.6

22.4

17.1

35.2

31.5

27.5

23.4

19.0

14.6

8.57

35.2

31.2

27.5

23.4

19.0

14.6

28.4

25.5

22.4

19.1

15.6

12.0

20.57

13.9

10.7

17.30

14.8012.20

9.45

6.44

17.3

14.9

12.2

9.45

14.7

12.7

10.5

8.17

5.61

4.96

14.7

12.7

10.5

8.17

10.6

8.81

6.895.62

4.76

10.6

8.81

6.89

5.62

4.76

7.94

6.23

4.31

8.46

7.11

5.61

4.60

3.91

2.21

1.82

Area

In.2

18.4

16.3

14.1

11.9

9.59

14.4

12.8

11.1

9.37

7.59

7.59

12.4

11.0

9.58

8.12

6.595.04

10.4

9.25

8.08

6.87

5.59

4.28

2.52

10.4

9.25

8.08

6.87

5.59

4.28

8.36

7.50

6.58

5.62

4.59

3.53

6.05

4.09

3.15

5.08

4.363.59

2.78

1.89

5.08

4.36

3.59

2.78

4.33

3.74

3.09

2.40

1.64

1.44

4.33

3.74

3.09

2.40

3.11

2.59

2.03

1.65

1.40

3.11

2.59

2.03

1.65

1.40

2.34

1.83

1.27

2.49

2.09

1.65

1.35

1.14

.648

.534

Ix

In.4

353.0

318.0

279.0

239.0

196.0

181.0

164.0

145.0

125.0

103.0

89.4

103.0

94.0

83.7

72.560.1

46.9

75.0

68.9

61.9

54.0

45.1

35.4

19.8

63.4

58.2

52.2

45.5

38.0

29.9

35.3

32.7

29.7

26.2

22.1

17.5

23.8

17.9

14.3

17.8

16.013.8

11.1

7.92

14.7

13.2

11.3

9.08

10.7

9.74

8.47

6.90

4.944.38

8.20

7.44

6.45

5.24

5.31

4.69

3.883.27

2.82

4.49

3.96

3.27

2.75

2.38

3.29

2.75

2.01

2.43

2.20

1.86

1.59

1.37

.293

.253

Iy

In.3

188.0

169.0

149.0

128.0

105.0

80.7

73.5

65.4

56.6

46.9

60.8

65.6

59.9

53.5

46.438.6

30.2

24.5

22.7

20.6

18.1

15.3

12.1

1.94

37.1

34.2

30.8

27.0

22.6

17.8

18.4

17.1

15.6

13.8

11.7

9.35

7.78

6.00

4.84

2.83

2.622.31

1.91

1.39

6.46

5.84

5.05

4.09

2.31

2.15

1.92

1.60

1.171.04

5.16

4.70

4.10

3.35

1.70

1.53

1.291.10

.954

2.61

2.32

1.93

1.63

1.41

1.33

1.13

.84

1.25

1.15

.978

.839

.730

.096

.084

Sx

In.3

58.8

52.9

46.5

39.8

32.6

36.1

32.7

29.0

25.0

20.6

19.9

25.8

23.5

20.9

18.1

15.0

11.7

18.8

17.2

15.5

13.5

11.3

8.86

4.65

18.1

16.6

14.9

13.0

10.9

8.53

11.8

10.9

9.90

8.72

7.36

5.83

7.92

5.98

4.77

5.93

5.334.60

3.70

2.64

5.88

5.27

4.52

3.63

4.27

3.90

3.39

2.76

1.98

1.75

4.10

3.72

3.22

2.62

2.65

2.34

1.941.63

1.41

2.572.26

1.87

1.57

1.36

1.88

1.57

1.15

1.62

1.47

1.24

1.06

.914

.293

.253

Sy

In.4

46.9

42.3

37.3

32.0

26.3

26.9

24.5

21.8

18.9

15.6

17.4

21.9

20.0

17.8

15.5

12.9

10.1

12.3

11.4

10.3

9.05

7.63

6.04

1.94

14.8

13.7

12.3

10.8

9.03

7.12

9.21

8.57

7.81

6.92

5.87

4.67

5.19

4.00

3.23

2.83

2.622.31

1.91

1.39

4.30

3.89

3.36

2.73

2.31

2.15

1.92

1.60

1.17

1.04

3.44

3.14

2.73

2.23

1.70

1.53

1.29

1.10

.954

2.091.86

1.54

1.30

1.13

1.33

1.13

.84

1.25

1.15

.978

.839

.730

.192

.168

rx

In.

4.39

4.42

4.45

4.49

4.52

3.55

3.58

3.62

3.65

3.69

3.43

2.89

2.92

2.96

2.99

3.02

3.05

2.69

2.73

2.77

2.80

2.84

2.88

2.80

2.47

2.51

2.54

2.57

2.61

2.64

2.06

2.09

2.12

2.16

2.19

2.23

1.98

2.09

2.13

1.87

1.921.96

2.00

2.05

1.70

1.74

1.77

1.81

1.57

1.61

1.66

1.70

1.73

1.74

1.38

1.41

1.44

1.48

1.31

1.35

1.38

1.41

1.42

1.20

1.24

1.27

1.29

1.30

1.19

1.23

1.26

.990

1.03

1.06

1.08

1.09

.673

.688

ry

In.

3.20

3.23

3.25

3.28

3.31

2.37

2.40

2.43

2.46

2.49

2.83

2.30

2.33

2.36

2.39

2.42

2.45

1.54

1.57

1.60

1.62

1.65

1.68

.88

1.89

1.92

1.95

1.98

2.01

2.04

1.49

1.51

1.54

1.57

1.60

1.63

1.13

1.21

1.24

.75

.78

.80

.83

.86

1.13

1.16

1.19

1.21

.730

.759

.788

.816

.844

.850

1.09

1.12

1.15

1.18

.740

.769

.797

.815

.826

.916

.947

.976

.944

1.01

.754

.786

.814

.710

.741

.770

.788

.799

.385

.396

Zx

In.3

72.4

64.7

56.5

48.0

39.1

45.6

40.9

35.9

30.7

25.1

23.7

32.2

29.0

25.6

21.9

18.0

13.9

24.7

22.4

19.9

17.1

14.1

11.0

6.19

23.0

20.9

18.5

15.9

13.2

10.2

16.0

14.0

12.5

10.9

9.05

7.08

10.57

7.69

6.01

8.46

7.426.22

4.91

3.42

7.70

6.77

5.69

4.50

5.965.30

4.51

3.60

2.53

2.23

5.34

4.74

4.02

3.21

3.59

3.09

2.49

2.07

1.77

3.352.88

2.32

1.92

1.65

2.60

2.03

1.44

2.19

1.921.57

1.32

1.14

.386

.326

Zy

In.3

54.7

48.9

42.7

36.4

29.6

31.8

28.7

25.2

21.6

17.7

20.0

26.3

23.8

21.0

18.0

14.8

11.5

15.0

13.6

12.1

10.5

8.71

6.79

2.15

18.2

16.5

14.6

12.6

10.4

8.12

12.1

10.5

9.42

8.21

6.84

5.36

6.48

4.75

3.72

3.75

3.312.79

2.22

1.56

5.34

4.71

3.98

3.16

2.992.69

2.31

1.86

1.33

1.17

4.35

3.87

3.29

2.63

2.16

1.87

1.52

1.27

1.09

2.632.27

1.83

1.52

1.31

1.74

1.38

.98

1.63

1.441.18

.992

.862

.234

.199

Torsional

Constant

J

In.4

402

359

313

266

216

188

169

148

126

103

115

136

122

107

91.7

75.1

57.9

65.0

59.2

52.6

45.4

37.6

29.2

6.1

80.8

73.1

64.6

55.6

45.8

35.4

42.8

39.2

34.9

30.3

25.1

19.6

21.6

15.1

11.9

8.96

8.096.96

5.60

3.99

15.9

14.0

11.7

9.27

7.03

6.37

5.50

4.44

3.16

2.80

11.3

10.0

8.47

6.72

4.68

4.06

3.29

2.74

2.35

5.89

5.05

4.05

3.35

2.86

3.36

2.73

1.96

3.06

2.68

2.19

1.83

1.53

.254

.216

Sheer

Constant

Crt

In.2

10.0

8.98

7.88

6.73

5.50

8.00

7.23

6.38

5.48

4.50

4.00

6.00

5.47

4.88

4.22

3.50

2.73

6.00

5.47

4.88

4.22

3.50

2.73

2.00

5.00

4.60

4.13

3.60

3.00

2.35

4.00

3.72

3.38

2.97

2.50

1.97

3.38

2.50

1.97

3.38

2.972.50

1.97

1.38

2.63

2.35

2.00

1.60

2.63

2.35

2.00

1.60

1.12

.995

1.88

1.72

1.50

1.22

1.72

1.50

1.22

1.02

.876

1.41

1.25

1.03

.870

.751

1.30

1.03

.74

1.09

1.00

.846

.720

.616

.375

.320

Wall

Thickness MassAxis X-X Axis Y-Y

3


6/84

Hollow St r uc t ur al Sec t ions Round xyPROPERTIES AN D D IM ENSIONS

Outside

Dimensions

in.

12.75

10.75

8.625

6.625

5.562

4.50

4.00

3.50

2.875

2.375

1.900

1.660

Wall

Thickness

In.

.500

.438

.375

.313

.250

.500

.438

.375

.313

.250

.500

.438

.375

.313

.250

.188

.375

.313

.250

.188

.375

.313

.250

.188

.313

.250

.188

.313

.250

.188

.150

.313

.250

.188

.150

.250

.188

.150

.125

.250

.188

.150

.125

.188

.125

.100

.188

.125

.100

Mass

Lb./Ft.

65.5

57.7

49.6

41.633.4

54.8

48.3

41.6

34.9

28.1

43.4

38.4

33.1

27.8

22.4

17.0

25.1

21.1

17.0

13.0

20.8

17.6

14.2

10.8

14.0

11.4

8.68

12.3

10.0

7.67

6.17

10.7

8.69

6.66

5.37

7.015.40

4.37

3.68

5.68

4.40

3.57

3.01

3.43

2.37

1.92

2.94

2.05

1.67

Area

In.2

19.2

17.0

14.6

12.29.82

16.1

14.2

12.2

10.3

8.25

12.8

11.3

9.73

8.17

6.58

4.99

7.37

6.21

5.01

3.81

6.11

5.16

4.17

3.18

4.12

3.34

2.56

3.63

2.95

2.25

1.81

3.13

2.56

1.96

1.58

2.061.59

1.28

1.08

1.67

1.29

1.05

.885

1.009

.697

.565

.867

.603

.490

I

In.4

362.0

322.0

280.0

237.0192.0

212.0

189.0

165.0

140.0

114.0

106.0

94.7

82.9

70.7

57.7

44.4

36.1

31.0

25.5

19.7

20.7

17.8

14.8

11.5

9.07

7.56

5.94

6.20

5.20

4.10

3.37

4.02

3.39

2.69

2.22

1.791.44

1.19

1.02

.954

.778

.651

.561

.3742

.2759

.2293

.2385

.1787

.1497

S

In.3

56.7

50.5

43.9

37.130.1

39.4

35.2

30.7

26.0

21.2

24.5

22.0

19.2

16.4

13.4

10.3

10.9

9.36

7.69

5.96

7.43

6.42

5.30

4.13

4.03

3.36

2.64

3.10

2.60

2.05

1.68

2.30

1.94

1.54

1.27

1.251.00

.831

.712

.804

.655

.548

.473

.3939

.2904

.2414

.2873

.2153

.1804

r

In.

4.34

4.36

4.38

4.404.42

3.63

3.65

3.67

3.69

3.71

2.88

2.90

2.92

2.94

2.96

2.98

2.21

2.23

2.26

2.28

1.84

1.86

1.88

1.90

1.48

1.51

1.53

1.31

1.33

1.35

1.36

1.13

1.15

1.17

1.19

.933

.952

.965

.973

.756

.776

.788

.796

.6090

.6292

.6371

.5178

.5443

.5527

Z

In.3

75.1

66.5

57.5

48.439.1

52.6

46.6

40.4

34.1

27.6

33.1

29.4

25.6

21.6

17.5

13.4

14.7

12.5

10.2

7.80

10.1

8.64

7.06

5.44

5.50

4.52

3.50

4.27

3.52

2.74

2.22

3.19

2.65

2.07

1.68

1.731.36

1.11

.947

1.13

0.901

0.743

0.634

.612

.422

.342

.459

.319

.259

Torsional Constant

J

In.4

723.0

643.0

589.0

473.0384.0

424.0

378.0

330.0

280.0

228.0

212.0

189.0

166.0

141.0

115.0

88.8

72.2

62.0

51.0

39.5

41.4

35.7

29.5

23.0

18.1

15.1

11.9

12.4

10.4

8.21

6.73

8.03

6.78

5.39

4.44

3.582.88

2.39

2.05

1.91

1.56

1.30

1.12

.7471

.5508

.4586

.4769

.3568

.2989

Surface

Area

Ft.2/Ft.

3.34

3.34

3.34

3.343.34

2.81

2.81

2.81

2.81

2.81

2.26

2.26

2.26

2.26

2.26

2.26

1.73

1.73

1.73

1.73

1.46

1.46

1.46

1.46

1.18

1.18

1.18

1.05

1.05

1.05

1.05

.916

.916

.916

.916

.752

.752

.752

.752

.622

.622

.622

.622

.4974

.4974

.4974

.4346

.4346

.4346

SheerConstant

Crt

In.2

9.63

8.48

7.30

6.124.91

8.07

7.11

6.12

5.13

4.12

6.40

5.65

4.87

4.09

3.29

2.49

3.70

3.11

2.51

1.90

3.07

2.59

2.09

1.59

2.07

1.67

1.28

1.82

1.48

1.13

.908

1.58

1.28

.982

.790

1.04.797

.643

.541

.845

.651

.526

.443

.5084

.3497

.2831

.4382

.3027

.2457

SOURCE OF INFORMATION

ANNUAL BOO K OF ASTM STANDARDS 1996

We have endeavored to present data and numerical val-ues in a factual and accurate manner. However,Prudential Steel does not assume responsibility for over-sights or errors resulting from use of the information con-tained herein.Cold-formed Welded Structural Steel Tubing has not onlyversatile design possibilities, but is easier to fabricaterequires less maintenance, is aesthetically pleasing andoffers greater resistance to torsion, compression anddeflection than other structural shapes.Our Engineering Department will be pleased to provide

additional design information upon request and may be

contacted through our sales representatives.


7/8

PRUDENTIAL

PRUDENTIAL

PRUDENTIAL

PRUDENTIAL

PRUDENTIAL

PRUDENTIAL

PRUDENTIAL

PRUDENTIAL

PRUDENTIAL

Novembe


8/8

Printed in C

P.O. Box 18 46 , 120 5 Prudentia l Blvd.

Longview, Washingt on 986 32

Phone: (360) 5 01-00 10

Fax: (360) 501 -0012

Tol l - f ree: 1-877 -501-00 10

Ema il: lon gview@pr udent ial st eel.com

Websit e: www.prudent ialsteel .com

1800 140 4TH AVENUE SW CALGARY ALBERTA (403) 267 0300 FAX (403) 261 0936

hollow structure

Documents