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Structural Steel Pipe

Product

 Seamless Structural Pipe

Application

 Used in the general structure and the mechanism Industry

Size

 OD: 10.3-762mm


 WT: 6-35mm


 LENGTH: 5.8/6/11.8/12m

Pipe Standard

 ASTM A53  ASTM A519  ASTM A500 ASTM A252


 JIS G3441/G3445


 EN 10210/10297


In general, structural pipe is a type of steel construction pipe that meets certain standards of chemical composition and mechanical properties. This pipe can be used for a wide variety of structural applications and there are variety of types of structural pipe available. Common types of structural pipe include:

Seamless Steel Pipe: Seamless steel structural pipe is a durable pipe product that is commonly used for dock piling, pipe piling, caissons, and bollards.

ERW Steel Pipe: This structural pipe is typically known to the construction industry as high quality line pipe and it is commonly used by the oil and utility companies. This steel pipe can be used for sign pole, column, dock, and tunnel construction.

Spiral Steel Pipe: This is an economical and durable type of structural pipe that offers long lasting durability for things like road casing, piling and trenches.

DSAW Carbon Steel Pipe: This structural pipe is welded on both the OD and the ID. It is available in many different grades and is used for road casing, road boring, culverts, and more.

Fence Pipe: This is a type of structural pipe that is becoming popular for building fences because of its high durability and strength. This structural pipe is used for enclosing parks, parking lots, and more.

 

Standard Structural Steel Pipes & Tubes Specifications & Grades

ASTM A53/ASME SA53 Grades A & B;

ASTM A519/ASME SA519 Grades 1020,1026,4140,4142;

ASTM A252/ASME SA252 S235JRH, S275JOH, S275J2H, S355JOH, S355J2H, S355K2H;

ASTM A500/ASME SA500 Grades A, B, C, D;

EN10297-1 GradeE235, E275, E315, E355;

EN10210-1 GradeS235JRH, S275JOH, S275J2H, S355JOH, S355J2H, S355K2H;


Structural Pipe Applications

Structural pipe can be used for a variety of different applications including:

Columns

Sign Poles

Structural Supports

Pilings

Bollards

Roadway Billboard Signs

Tower Construction

Caissons

Road Bore Casings

Dock Piles

Dredge Pipe

Slurry Lines

Bumper Posts




NPS

Outside
Diameter mm

Wall Thickness(mm)

1/8

10.3

1.24

1.45

1.73

2.41





















1/4

13.7

1.65

1.85

224

3.02





















3/8

17.1

1.65

1.85

2.31

3.20





















1/2

21.3

2.77

3.73

4.78

7.47





















3/4

26.7

2.11

2.41

2.87

3.91

5.56

7.82



















1

33.4

2.77

2.90

3.38

4.55

6.35

9.09



















1-1/4

42.2

2.77

2.97

3.56

4.85

6.35

9.70



















1-1/2

48.3

2.77

3.18

3.68

5.08

7.14

10.15



















2

60.3

2.11

2.77

3.18

3.58

3.91

4.37

4.78

5.54

6.35

7.14

8.74

11.07













21/2

73

2.77

3.05

3.18

3.56

3.96

4.37

4.78

5.16

5.49

6.35

7.01

9.35

14.02












3

88.9

4.37

4.78

5.49

6.35

7.14

7.62

11.13

15.24

















31/2

101.6

4.78

5.74

6.35

7.14

8.08




















4

114.3

4.78

5.16

5.56

6.02

6.35

7.14

7.92

8.56

11.13

13.49

17.12














5

141.3

4.78

5.56

6.55

7.14

7.92

8.74

9.53

12.70

15.88

19.05















6

168.3

5.16

5.56

6.35

7.11

7.92

8.74

9.53

10.97

12.70

1427

15.88

18.26

 18.26

19.05

21.95

2223









8

219.1

6.35

7.04

7.92

8.18

8.74

9.53

10.31

11.13

12.70

14.27

15.09

15.88

18.26

19.05

20.62

2223

23.01

25.40







10

273

6.35

7.09

7.80

8.74

9.27

11.13

12.70

14.27

15.09

15.88

18.26

20.62

21.44

22.23

23.83

25.40

28.58

31.75







12

323.8

6.35

7.14

7.92

8.38

8.74

9.53

10.31

11.13

12.70

14.27

15.88

17.48

19.05

20.62

21.44

22.23

23.83

25.40

26.97

28.6

31.8

33.3



14

355.6

6.35

7.14

7.92

8.74

9.53

10.31

11.13

11.91

12.70

14.27

15.09

15.88

17.48

19.05

20.62

22.23

23.83

25.40

26.97

27.8

28.6

31.8

35.7

50.8

16

406.4

7.14

7.92

8.70

9.53

10.31

11.13

11.91

12.70

14.27

15.88

16.66

17.48

19.05

20.62

21.44

2223

23.83

25.40

26.19

27





18

457

7.14

7.92

8.74

9.53

10.31

11.13

11.91

12.70

14.27

15.88

17.48

19.05

20.62

22.23

23.83

25.40

26.97

28.58

29.36

30.2





20

508

8.74

9.53

10.31

11.13

11.91

12.70

14.27

15.09

15.88

17.48

19.05

20.62

22.23

23.83

25.40

26.19

26.97

28.58

30.18

31.8





22

559

8.74

9.53

10.31

11.13

11.91

12.70

14.27

15.88

17.48

19.05

20.62

22.23

23.83

25.40

26.97

28.58

30.18

31.75

33.32

34.9





24

610

8.74

9.53

10.31

11.13

11.91

12.70

14.27

15.88

17.48

19.05

20.62

2223

23.83

24.61

25.40

26.97

28.58

30.18

30.96

31.8

33.3

34.9

36.5

38.1

26

660

9.53

10.31

11.13

11.91

12.70

14.27

15.88

17.48

19.05

20.62

22.23

23.83

25.40












28

711

9.53

10.31

11.13

11.91

12.70

14.27

15.88

17.48

19.05

20.62

2223

23.83

25.40












30

762

9.53

10.31

11.13

11.91

12.70

14.27

15.88

17.48

19.05

20.62

22.23

23.83

25.40

26.97

28.58

30.18

31.75









Grade

C, max

Mn, max

P, max

S, max

A53

A

0.25

0.95

0.05

0.05

B

0.3

1.2

0.05

0.05

A519

1026

0.28

0.9

0.04

0.05

A252

S235JRH

0.17

1.4

0.04

0.04

S275JOH

0.2

1.5

0.035

0.035

S275J2H

0.2

1.5

0.03

0.03

S355JOH

0.22

1.6

0.035

0.035

S355J2H

0.22

1.6

0.03

0.03

S355K2H

0.22

1.6

0.03

0.03

A500

A

0.26

1.35

0.035

0.035

B

0.30

1.40

0.045

0.045

C

0.23

1.35

0.035

0.035

D

0.27

1.40

0.045

0.045

Dimension Tolerances of Seamless Steel Pipe

Pipe types

Pipe Szie(mm)

Tolerances

Hot rolled

OD

<50

±0.50mm

≥50

±1%

WT

<4

±12.5%

≥420

+15%, -12.5%

>20

±12.5%

Cold drawn

OD

610

±0.20mm

1030

±0.40mm

3050

±0.45

>50

±1%

WT

<1

±0.15mm

>13

+ 15%, – 10%

>3

+ 12.5%, – 10%

 


ASTM A53

Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM A519

Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing

ASTM A500

Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes

ASTM A252

Standard Specification for Welded and Seamless Steel Pipe Piles


production process


Packing