Square Hollow Section

Square Hollow Section

Square Hollow Section is another typical type of structural steel tube that sits midway between RHS and CHS in terms of characteristics, appearance, and structural behavior. Aesthetics, symmetry, balance, and strength are all important considerations.

Square hollow section is used in a variety of projects, including all sorts of structures, highway guardrails and signs, support columns, trusses, bridges, heavy machinery, storage systems, and workout equipment.

HOLLOW SECTION PRODUCT FEATURES

Specifications of Square Hollow Section

- Size Range of Square Hollow Section

20mmx20mm ~ 400mmx400mm

- Thickness Range of Square Hollow Section

1.50mm to 12.50mm

- Length Range of Square Hollow Section

6 meters, 7.50 meters and/or 12 meters standard. Custom lengths are available.

- Tolerance of Square Hollow Section

  • Length: +/- 50 MM
  • Wall Thickness: +/- 12.5%
  • Weight: +/- 8%

- Manufacturing Standards and Grades

  • Structural steel Hollow Sections to EN 10219: 235JRH, S275J0H, S275J2H, S355J0H, S355J2H
  • Fine-grain structural steel Tubes to EN10219 in Steel Grades S235, S275, and S355.
  • Pre-Galvanized Tubes and Sections to EN10219 from Steel Grade DX51 Z180 – Z275.
  • Hot Dip Galvanized tubes for Structural Application to EN10219 in various steel Grades.

Dimensions and Sizes of Square Hollow Section

Size (mm)

Thickness (mm)

Kg / Metre

20 X 20

2

1.11

25 X 25

2

1.43

25 X 25

2.5

1.74

25 X 25

3

2.04

30 X 30

2

1.74

30 X 30

2.5

2.14

30 X 30

3

2.51

30 X 30

3.2

2.65

40 X 40

2

2.37

40 X 40

2.5

2.92

40 X 40

3

3.45

40 X 40

4

4.46

40 X 40

5

5.40

50 X 50

2

3.00

50 X 50

2.5

3.71

50 X 50

3

4.39

50 X 50

4

5.72

50 X 50

5

6.97

50 X 50

6

8.20

50 X 50

8

10.50

60 X 60

3

5.34

60 X 60

3.2

5.67

60 X 60

3.6

6.34

60 X 60

4

6.97

60 X 60

5

8.54

70 X 70

2.5

5.28

70 X 70

3

6.28

70 X 70

3.5

7.25

70 X 70

3.6

7.46

70 X 70

4

8.23

70 X 70

5

10.10

70 X 70

8

15.29

70 X 70

10

19.13

80 X 80

3

7.22

80 X 80

3.5

8.35

80 X 80

3.6

8.59

80 X 80

4

9.48

80 X 80

5

11.70

80 X 80

6

13.80

80 X 80

6.3

14.40

80 X 80

8

17.83

80 X 80

10

21.88

90 X 90

3

8.16

90 X 90

3.5

9.45

90 X 90

3.6

9.72

90 X 90

4

10.70

90 X 90

5

13.30

90 X 90

6

15.70

90 X 90

6.3

16.40

90 X 90

8

20.32

90 X 90

10

25.53

100 X 100

3

9.10

100 X 100

4

12.00

100 X 100

5

14.80

100 X 100

6

17.60

100 X 100

6.3

18.40

100 X 100

8

22.90

100 X 100

10

27.86

100 X 100

12

33.44

120 X 120

4

14.50

120 X 120

5

18.00

120 X 120

6

21.30

120 X 120

6.3

22.30

120 X 120

8

27.90

120 X 120

10

34.13

120 X 120

12

39.94

120 X 120

16

54.64

140 X 140

6

25.97

140 X 140

8

32.89

140 X 140

10

41.15

150 X 150

4

18.30

150 X 150

5

22.70

150 X 150

6

27.00

150 X 150

6.3

28.30

150 X 150

8

35.40

150 X 150

10

43.47

150 X 150

12

53.48

150 X 150

16

65.05

160 X 160

6

27.39

160 X 160

8

36.90

160 X 160

10

46.88

180 X 180

5

27.97

180 X 180

6

33.26

180 X 180

8

43.00

180 X 180

10

53.00

180 X 180

12

61.01

180 X 180

12.5

65.20

180 X 180

16

81.30

200 X 200

5

31.18

200 X 200

6

37.09

200 X 200

8

48.00

200 X 200

10

59.30

200 X 200

12

68.84

200 X 200

12.5

73.00

200 X 200

16

90.91

250 X 250

6

46.83

250 X 250

8

60.50

250 X 250

10

75.00

250 X 250

12

88.45

250 X 250

12.5

92.70

250 X 250

16

111.48

300 X 300

6

55.30

300 X 300

8

74.18

300 X 300

10

90.70

300 X 300

12

108.68

300 X 300

12.5

112.00

300 X 300

16

141.84

350 X 350

10

105.93

350 X 350

12

126.74

350 X 350

16

166.94

400 X 400

8

97.56

400 X 400

10

121.95

400 X 400

12

151.97

400 X 400

16

191.94

Chemical composition of Square Hollow Section

Chemical Requirements

 

Element

Composition, %

Grades A, B, and D

Grade C

Heat Analysis

Product Analysis

Heat Analysis

Product Analysis

Carbon, max A

0.26

0.30

0.23

0.27

Manganese, max A

1.35

1.40

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, min B

0.20

0.18

0.20

0.18

Mechanical property of Square Hollow Section

Item

Grade A

Grade B

Grade C

Grade D

Tensile strength, mn, ps (MPa)

45 000
(310)

58 000
(400)

62 00
(427)

58 000
(400)

Yield strength, mn, psi (MPa)

39 000
(269)

46 000
(317)

50 000
(345)

36 000
(250)

Elongation in 2 in. (50.8 mm), min, %A

25B

23C

21D

23C

Packing of Square Hollow Section

Packing

standard export packing (inside: water proof paper, outside: steel covered with strips and pallets)

Container Size

20ft GP:5898mm (Length)x2352mm (Width)x2393mm (High)

40ft GP:12032mm (Length)x2352mm (Width)x2393mm (High)

40ft HC:12032mm (Length)x2352mm (Width)x2698mm (High)

Piling-pipe-supplied-by-Tianjin-United-Steel-Pipe
Piling Pipe
Structural Pipe
show various kind of galvanized pipes
Galvanized Pipe
Steel Fabrication
Scroll to Top

Get A Quote Now

Fill in the form below and our team will be happy to assist you