hollow section

Hollow Section

The term “Hollow Section” (HSS: Hollow Structural Section) refers to welded steel tube that is utilized as structural elements in buildings and other structures, as well as a variety of manufactured items. It is commonly manufactured using hot-rolled coils. Slitting the coils to the appropriate width for the manufactured portion and then shaping them to the final shape required. Following size formation and seam welding, the tube is cut to the necessary length to make a single piece of pipe.

Hollow Section is a low-cost, lightweight material that is easy to weld, mold, punch, and drill. Its hollow design covers and protects wires, pipelines, and moving parts but allows them to be exposed. Additionally, it can be substituted for solid steel goods such as I-Beams and Wide Flange.

PRODUCT FEATURES

Types of Hollow Section

Hollow Section is available in a variety of shapes, including round, rectangular, and square.

The first type of pipe was circular steel sections (CHS). Frequently used in a variety of structural, mechanical, and construction applications.

CHS is a popular architectural choice for aesthetic appearances in a variety of applications.

Rectangular pipes (RHS) are a frequently used material in mechanical, structural, and construction applications. This is because the flat surface of the pipe results in a more economical structural solution for joining and various other types of fabrication work.

Square pipe (SHS) is another popular type of structural steel pipe that falls somewhere between RHS and CHS in terms of characteristics, appearance, and structural behavior.

SHS has a flat surface that makes joining and welding easier.

Dimensions and Sizes of HOLLOW SECTION

- Specification & Size of Circular Hollow Section (CHS)

DN

O. D.

W. T.

Inch

mm

SCH5S

SCH10S

SCH10

SCH20

SCH30

SCH40

SCH60

SCH80

SCH100

SCH120

SCH140

SCH160

STD

XS

XXS

50

2″

60.3

1.65

2.77

3.91

5.54

8.74

3.91

5.54

11.07

65

2 1/2″

73

2.11

3.05

5.16

7.01

9.53

5.16

7.01

14.02

80

3″

88.9

2.11

3.05

5.49

7.62

11.13

5.49

7.52

15.24

90

3 1/2″

101.6

2.11

3.05

5.74

8.08

5.74

8.08

100

4″

114.3

2.11

3.05

6.02

8.58

11.13

13.49

6.02

8.56

17.12

125

5″

141.3

2.77

3.4

6.55

9.53

12.7

15.88

6.55

9.53

18.05

150

6″

168.3

2.77

3.4

7.11

10.97

14.27

18.26

7.11

10.97

21.95

200

8″

219.1

2.77

3.76

6.35

7.04

8.18

10.31

12.7

15.09

18.26

20.62

23.01

8.18

12.7

22.23

250

10″

273.1

3.4

4.19

6.35

7.8

9.27

12.7

15.09

18.26

21.44

25.4

28.58

9.27

12.7

25.4

300

12″

323.9

3.96

4.57

6.35

8.38

10.31

14.27

17.48

21.44

25.4

28.58

33.32

9.53

12.7

25.4

350

14″

355.5

3.96

4.78

6.35

7.92

9.53

11.13

15.09

19.05

23.83

27.79

31.75

35.71

9.53

12.7

400

16″

406.4

4.19

4.78

6.35

7.92

9.53

12.7

16.66

21.44

26.19

30.96

36.53

40.49

9.53

12.7

450

18″

457.2

4.19

4.78

6.35

7.92

11.13

14.27

19.05

23.83

39.36

34.93

39.67

45.24

500

20″

508

4.78

5.54

6.35

9.53

12.7

15.09

20.62

26.19

32.54

38.1

44.45

50.01

550

22″

558.8

4.78

5.54

6.35

9.53

12.7

22.23

28.58

34.93

41.28

47.63

53.98

600

24″

609.6

5.54

6.35

6.35

9.53

14.27

17.48

24.61

30.96

38.89

46.02

52.37

59.54

- Specification & Size of Rectangular Hollow Section (RHS)

Sizes

Weight

Height

Width

W. T.

[kg/m]

[mm]

[mm]

[mm]

50 x 25 x 2.5 RHS

2.7

50

25

2.5

50 x 25 x 2.5 RHS

2.7

50

25

2.5

50 x 25 x 3 RHS

3.2

50

25

3

50 x 30 x 2.5 RHS

2.9

50

30

2.5

50 x 30 x 3 RHS

3.4

50

30

3

50 x 30 x 3.2 RHS

3.6

50

30

3.2

50 x 30 x 3.6 RHS

4

50

30

3.6

50 x 30 x 4 RHS

4.4

50

30

4

50 x 30 x 5 RHS

5.3

50

30

5

60 x 40 x 2.5 RHS

3.7

60

40

2.5

60 x 40 x 3 RHS

4.4

60

40

3

60 x 40 x 3.2 RHS

4.6

60

40

3.2

60 x 40 x 3.6 RHS

5.1

60

40

3.6

60 x 40 x 4 RHS

5.6

60

40

4

60 x 40 x 5 RHS

6.9

60

40

5

60 x 40 x 6 RHS

8

60

40

6

60 x 40 x 6.3 RHS

8.3

60

40

6.3

80 x 40 x 3 RHS

5.3

80

40

3

80 x 40 x 3.2 RHS

5.6

80

40

3.2

80 x 40 x 3.6 RHS

6.3

80

40

3.6

80 x 40 x 4 RHS

6.9

80

40

4

80 x 40 x 5 RHS

8.4

80

40

5

80 x 40 x 6 RHS

9.9

80

40

6

80 x 40 x 6.3 RHS

10.3

80

40

6.3

80 x 40 x 8 RHS

12.5

80

40

8

90 x 50 x 3 RHS

6.2

90

50

3

90 x 50 x 3.2 RHS

6.6

90

50

3.2

90 x 50 x 3.6 RHS

7.4

90

50

3.6

90 x 50 x 4 RHS

8.2

90

50

4

90 x 50 x 5 RHS

10

90

50

5

90 x 50 x 6 RHS

11.8

90

50

6

90 x 50 x 6.3 RHS

12.3

90

50

6.3

90 x 50 x 8 RHS

15

90

50

8

100 x 50 x 3 RHS

6.7

100

50

3

100 x 50 x 3.2 RHS

7.1

100

50

3.2

100 x 50 x 3.6 RHS

8

100

50

3.6

100 x 50 x 4 RHS

8.8

100

50

4

100 x 50 x 5 RHS

10.8

100

50

5

100 x 50 x 6 RHS

12.7

100

50

6

100 x 50 x 6.3 RHS

13.3

100

50

6.3

100 x 50 x 8 RHS

16.3

100

50

8

100 x 60 x 3 RHS

7.2

100

60

3

100 x 60 x 3.2 RHS

7.6

100

60

3.2

100 x 60 x 3.6 RHS

8.5

100

60

3.6

100 x 60 x 4 RHS

9.4

100

60

4

100 x 60 x 5 RHS

11.6

100

60

5

100 x 60 x 6 RHS

13.6

100

60

6

100 x 60 x 6.3 RHS

14.2

100

60

6.3

100 x 60 x 8 RHS

17.5

100

60

8

120 x 60 x 3.6 RHS

9.7

120

60

3.6

120 x 60 x 4 RHS

10.7

120

60

4

120 x 60 x 5 RHS

13.1

120

60

5

120 x 60 x 6 RHS

15.5

120

60

6

120 x 60 x 6.3 RHS

16.2

120

60

6.3

120 x 60 x 8 RHS

20.1

120

60

8

120 x 60 x 10 RHS

24.6

120

60

10

120 x 80 x 3.6 RHS

10.8

120

80

3.6

120 x 80 x 4 RHS

11.9

120

80

4

120 x 80 x 5 RHS

14.7

120

80

5

120 x 80 x 6 RHS

17.4

120

80

6

120 x 80 x 6.3 RHS

18.2

120

80

6.3

120 x 80 x 8 RHS

22.6

120

80

8

120 x 80 x 10 RHS

27.4

120

80

10

140 x 80 x 4 RHS

13.2

140

80

4

140 x 80 x 5 RHS

16.3

140

80

5

140 x 80 x 6 RHS

19.3

140

80

6

140 x 80 x 6.3 RHS

20.2

140

80

6.3

140 x 80 x 8 RHS

25.1

140

80

8

140 x 80 x 10 RHS

30.6

140

80

10

150 x 100 x 4 RHS

15.1

150

100

4

150 x 100 x 5 RHS

18.6

150

100

5

150 x 100 x 6 RHS

22.1

150

100

6

150 x 100 x 6.3 RHS

23.1

150

100

6.3

150 x 100 x 8 RHS

28.9

150

100

8

150 x 100 x 10 RHS

35.3

150

100

10

150 x 100 x 12 RHS

41.4

150

100

12

150 x 100 x 12.5 RHS

42.8

150

100

12.5

160 x 80 x 4 RHS

14.4

160

80

4

160 x 80 x 5 RHS

17.8

160

80

5

160 x 80 x 6 RHS

21.2

160

80

6

160 x 80 x 6.3 RHS

22.2

160

80

6.3

160 x 80 x 8 RHS

27.6

160

80

8

160 x 80 x 10 RHS

33.7

160

80

10

160 x 80 x 12 RHS

39.5

160

80

12

160 x 80 x 12.5 RHS

40.9

|160

80

12.5

180 x 100 x 4 RHS

16.9

180

100

4

180 x 100 x 5 RHS

21

180

100

5

180 x 100 x 6 RHS

24.9

180

100

6

180 x 100 x 6.3 RHS

26.1

180

100

6.3

180 x 100 x 8 RHS

32.6

180

100

8

180 x 100 x 10 RHS

40

180

100

10

180 x 100 x 12 RHS

47

180

100

12

180 x 100 x 12.5 RHS

48.7

180

100

12.5

200 x 100 x 4 RHS

18.1

200

100

4

200 x 100 x 5 RHS

22.6

200

100

5

200 x 100 x 6 RHS

26.8

200

100

6

200 x 100 x 6.3 RHS

28.1

200

100

6.3

200 x 100 x 8 RHS

35.1

200

100

8

200 x 100 x 10 RHS

43.1

200

100

10

200 x 100 x 12 RHS

50.8

200

100

12

200 x 100 x 12.5 RHS

52.7

200

100

12.5

200 x 100 x 16 RHS

65.2

200

100

16

200 x 120 x 6 RHS

28.7

200

120

6

200 x 120 x 6.3 RHS

29.9

200

120

6.3

200 x 120 x 8 RHS

37.3

200

120

8

200 x 120 x 10 RHS

45.9

200

120

10

200 x 120 x 12 RHS

54.5

200

120

12

200 x 120 x 12.5 RHS

55.7

200

120

12.5

250 x 150 x 5 RHS

30.4

250

150

5

250 x 150 x 6 RHS

36.2

250

150

6

250 x 150 x 6.3 RHS

38

|250

150

6.3

250 x 150 x 8 RHS

47.7

250

150

8

250 x 150 x 10 RHS

58.8

250

150

10

250 x 150 x 12 RHS

69.6

250

150

12

250 x 150 x 12.5 RHS

72.3

250

150

12.5

250 x 150 x 16 RHS

90.3

250

150

16

260 x 180 x 6 RHS

40

260

180

6

260 x 180 x 6.3 RHS

41.9

260

180

6.3

260 x 180 x 8 RHS

52.7

260

180

8

260 x 180 x 10 RHS

65.1

260

180

10

260 x 180 x 12 RHS

77.2

260

180

12

260 x 180 x 12.5 RHS

80.1

260

180

12.5

260 x 180 x 16 RHS

100

260

180

16

300 x 200 x 5 RHS

38.3

300

200

5

300 x 200 x 6 RHS

45.7

300

200

6

300 x 200 x 6.3 RHS

47.9

300

200

6.3

300 x 200 x 8 RHS

60.3

300

200

8

300 x 200 x 10 RHS

74.5

300

200

10

300 x 200 x 12 RHS

88.5

300

200

12

300 x 200 x 12.5 RHS

91.9

300

200

12.5

300 x 200 x 16 RHS

115

300

200

16

350 x 250 x 6 RHS

55.1

350

250

6

350 x 250 x 6.3 RHS

57.8

350

250

6.3

350 x 250 x 8 RHS

72.8

350

250

8

350 x 250 x 10 RHS

90.2

350

250

10

350 x 250 x 12 RHS

107

|350

250

12

350 x 250 x 12.5 RHS

112

350

250

12.5

350 x 250 x 16 RHS

141

350

250

16

400 x 200 x 6 RHS

55.1

400

200

6

400 x 200 x 6.3 RHS

57.8

400

200

6.3

400 x 200 x 8 RHS

72.8

400

200

8

400 x 200 x 10 RHS

90.2

400

200

10

400 x 200 x 12 RHS

107

400

200

12

400 x 200 x 12.5 RHS

112

400

200

12.5

400 x 200 x 16 RHS

141

400

200

16

450 x 250 x 8 RHS

85.4

450

250

8

450 x 250 x 10 RHS

106

450

250

10

450 x 250 x 12 RHS

126

450

250

12

450 x 250 x 12.5 RHS

131

450

250

12.5

450 x 250 x 16 RHS

166

450

250

16

500 x 300 x 8 RHS

97.9

500

300

8

500 x 300 x 10 RHS

122

500

300

10

500 x 300 x 12 RHS

145

500

300

12

500 x 300 x 12.5 RHS

151

500

300

12.5

500 x 300 x 16 RHS

191

500

300

16

500 x 300 x 20 RHS

235

500

300

20

- Specification & Size of Square Hollow Section (SHS)

Sizes

Weight

Height

Width

W. T.

[kg/m]

[mm]

[mm]

[mm]

20 x 20 x 2 SHS

1.1

20

20

2

20 x 20 x 2.5 SHS

1.3

20

20

2.5

25 x 25 x 2 SHS

14

25

25

2

25 x 25 x 2.5 SHS

1.7

25

25

2.5

25 x 25 x 3 SHS

2

25

25

3

30 x 30 x 2 SHS

1.7

30

30

2

30 x 30 x 2.5 SHS

2.1

30

30

2.5

30 x 30 x 3 SHS

2.5

30

30

3

40 x 40 x 2.5 SHS

2.9

40

40

2.5

40 x 40 x 3 SHS

3.4

40

40

3

40 x 40 x 3.2 SHS

3.6

40

40

3.2

40 x 40 x 3.6 SHS

4

40

40

3.6

40 x 40 x 4 SHS

4.4

40

40

4

40 x 40 x 5 SHS

5.3

40

40

5

50 x 50 x 2.5 SHS

3.7

50

50

2.5

50 x 50 x 3 SHS

4.4

50

50

3

50 x 50 x 3.2 SHS

4.6

50

50

3.2

50 x 50 x 3.6 SHS

5.1

50

50

3.6

50 x 50 x 4 SHS

5.6

50

50

4

50 x 50 x 5 SHS

6.9

50

50

5

50 x 50 x 6 SHS

8

50

50

6

50 x 50 x 6.3 SHS

8.3

50

50

6.3

60 x 60 x 2.5 SHS

4.5

60

60

2.5

60 x 60 x 3 SHS

5.3

60

60

3

60 x 60 x 3.2 SHS

5.6

60

60

3.2

60 x 60 x 3.6 SHS

6.3

60

60

3.6

60 x 60 x 4 SHS

6.9

60

60

4

60 x 60 x 5 SHS

8.4

60

60

5

60 x 60 x 6 SHS

9.9

60

60

6

60 x 60 x 6.3 SHS

10.3

60

60

6.3

60 x 60 x 8 SHS

12.5

60

60

8

70 x 70 x 3 SHS

6.2

70

70

3

70 x 70 x 3.2 SHS

6.6

70

70

3.2

70 x 70 x 3.6 SHS

7.4

70

70

3.6

70 x 70 x 4 SHS

8.2

70

70

4

70 x 70 x 5 SHS

10

70

70

5

70 x 70 x 6 SHS

11.8

70

70

6

70 x 70 x 6.3 SHS

12.3

70

70

6.3

70 x 70 x 8 SHS

15

70

70

8

80 x 80 x 3 SHS

7.2

80

80

3

80 x 80 x 3.2 SHS

7.6

80

80

3.2

80 x 80 x 3.6 SHS

8.5

80

80

3.6

80 x 80 x 4 SHS

9.4

80

80

4

80 x 80 x 5 SHS

11.6

80

80

5

80 x 80 x 6 SHS

13.6

80

80

6

80 x 80 x 6.3 SHS

14.2

80

80

6.3

80 x 80 x 8 SHS

17.8

80

80

8

90 x 90 x 5 SHS

13.1

90

90

5

90 x 90 x 6 SHS

15.5

90

90

6

90 x 90 x 6.3 SHS

16.2

90

90

6.3

90 x 90 x 8 SHS

20.1

90

90

8

100 x 100 x 3.6 SHS

10.8

100

100

3.6

100 x 100 x 4 SHS

11.9

100

100

4

100 x 100 x 5 SHS

14.7

100

100

5

100 x 100 x 6 SHS

17.4

100

100

6

100 x 100 x 6.3 SHS

18.2

100

100

6.3

100 x 100 x 8 SHS

22.6

100

100

8

100 x 100 x 10 SHS

27.4

100

100

10

120 x 120 x 4 SHS

14.4

120

120

4

120 x 120 x 5 SHS

18

120

120

5

120 x 120 x 6 SHS

21.2

120

120

6

120 x 120 x 6.3 SHS

22.2

120

120

6.3

120 x 120 x 8 SHS

27.6

120

120

8

120 x 120 x 10 SHS

33.7

120

120

10

120 x 120 x 12 SHS

39.5

120

120

12

120 x 120 x 12.5 SHS

40.9

120

120

12.5

140 x 140 x 5 SHS

21

140

140

5

140 x 140 x 6 SHS

24.9

140

140

6

140 x 140 x 6.3 SHS

26.1

140

140

6.3

140 x 140 x 8 SHS

32.6

140

140

8

140 x 140 x 10 SHS

40

140

140

10

140 x 140 x 12 SHS

47

140

140

12

140 x 140 x 12.5 SHS

48.7

140

140

12.5

150 x 150 x 5 SHS

22.6

150

150

5

150 x 150 x 6 SHS

26.8

150

150

6

150 x 150 x 6.3 SHS

28.1

150

150

6.3

150 x 150 x 8 SHS

35.1

150

150

8

150 x 150 x 10 SHS

43.1

150

150

10

150 x 150 x 12 SHS

50.8

150

150

12

150 x 150 x 12.5 SHS

52.7

150

150

12.5

150 x 150 x 16 SHS

65.2

150

150

16

160 x 160 x 5 SHS

24.1

160

160

5

160 x 160 x 6 SHS

28.7

160

160

6

160 x 160 x 6.3 SHS

30.1

160

160

6.3

160 x 160 x 8 SHS

37.6

160

160

8

160 x 160 x 10 SHS

46.3

160

160

10

160 x 160 x 12 SHS

54.6

160

160

12

160 x 160 x 12.5 SHS

56.6

160

160

12.5

160 x 160 x 16 SHS

70.2

160

160

16

180 x 180 x 5 SHS

27.3

180

180

5

180 x 180 x 6 SHS

32.5

180

180

6

180 x 180 x 6.3 SHS

34

180

180

6.3

180 x 180 x 8 SHS

42.7

180

180

8

180 x 180 x 10 SHS

52.5

180

180

10

180 x 180 x 12 SHS

62.1

180

180

12

180 x 180 x 12.5 SHS

64.4

180

180

12.5

180 x 180 x 16 SHS

80.2

180

180

16

200 x 200 x 5 SHS

30.4

200

200

5

200 x 200 x 6 SHS

36.2

200

200

6

200 x 200 x 6.3 SHS

38

200

200

6.3

200 x 200 x 8 SHS

47.7

200

200

8

200 x 200 x 10 SHS

58.8

200

200

10

200 x 200 x 12 SHS

69.6

200

200

12

200 x 200 x 12.5 SHS

72.3

200

200

12.5

200 x 200 x 16 SHS

90.3

200

200

16

220 x 220 x 6 SHS

40

220

220

6

220 x 220 x 6.3 SHS

41.9

220

220

6.3

220 x 220 x 8 SHS

52.7

220

220

8

220 x 220 x 10 SHS

65.1

220

220

10

220 x 220 x 12 SHS

77.2

220

220

12

220 x 220 x 12.5 SHS

80.1

220

220

12.5

220 x 220 x 16 SHS

100

220

220

16

250 x 250 x 5 SHS

38.3

250

250

5

250 x 250 x 6 SHS

45.7

250

250

6

250 x 250 x 6.3 SHS

47.9

250

250

6.3

250 x 250 x 8 SHS

60.3

250

250

8

250 x 250 x 10 SHS

74.5

250

250

10

250 x 250 x 12 SHS

88.5

250

250

12

250 x 250 x 12.5 SHS

91.9

250

250

12.5

250 x 250 x 16 SHS

115

250

250

16

260 x 260 x 6 SHS

47.6

260

260

6

260 x 260 x 6.3 SHS

49.9

260

260

6.3

260 x 260 x 8 SHS

62.8

260

260

8

260 x 260 x 10 SHS

77.7

260

260

10

260 x 260 x 12 SHS

92.2

260

260

12

260 x 260 x 12.5 SHS

95.8

260

260

12.5

260 x 260 x 16 SHS

120

260

260

16

300 x 300 x 6 SHS

55.1

300

300

6

300 x 300 x 6.3 SHS

57.8

300

300

6.3

300 x 300 x 8 SHS

72.8

300

300

8

300 x 300 x 10 SHS

90.2

300

300

10

300 x 300 x 12 SHS

107

300

300

12

300 x 300 x 12.5 SHS

112

300

300

12.5

300 x 300 x 16 SHS

141

300

300

16

350 x 350 x 8 SHS

85.4

350

350

8

350 x 350 x 10 SHS

106

350

350

10

350 x 350 x 12 SHS

126

350

350

12

350 x 350 x 12.5 SHS

131

350

350

12.5

350 x 350 x 16 SHS

166

350

350

16

400 x 400 x 8 SHS

97.9

400

400

8

400 x 400 x 10 SHS

122

400

400

10

400 x 400 x 12 SHS

145

400

400

12

400 x 400 x 12.5 SHS

151

400

400

12.5

400 x 400 x 16 SHS

191

400

400

16

400 x 400 x 20 SHS

235

400

400

20

Advantages of Using Hollow Section

The advantages of using hollow sections (Hollow Structural Sections) include the ability to reinforce and beautify steel structures. From cost savings to increased flexibility, Hollow Section offers several advantages over W-beams in construction and structural applications:

- Cost Saving

Cost control is critical in any construction project. By utilizing Hollow Section (Hollow Structural Sections), significant weight savings are realized, which translates into significant material cost savings. Simply put, less steel is required to accomplish the same task. When it is used, less steel is required to support a given load, resulting in material cost savings. Finally, when unpainted weathering steel is specified in conjunction with the Hollow Section, you receive a double dose of cost savings during construction as well as additional life cycle cost savings due to the extremely low ongoing maintenance costs compared to a painted structure. Additionally, when less weight is involved, transportation, handling, and erection costs are reduced.

- Availability

Hollow Section is readily available in weathering (ASTM A847) and non-weathering (ASTM A500 and 1085) forms from a variety of steel distributors and may be easier to source for your project than W-Beams.

- Simplicity

Due to the plethora of available sizes for W-beams, selecting the correct size for your application can become complicated. There are only 40-60 square and rectangular tube sizes available in Hollow Section. Additionally, the straight sides of square and rectangular tubing or hollow sections simplify fabrication.

- Attractiveness and Versatility

Architects, engineers, and contractors benefit from the increased aesthetic appeal and flexibility provided by weathering steel HSS. Weathering steel is a highly durable and adaptable material. Additionally, the patina that weathered steel develops over time complements to stone, wood, plants, and other outdoor elements.

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