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ERW Steel Pipe
ERW Steel Pipe
ERW Steel Pipe
ERW Steel Pipe
ERW Steel Pipe
ERW Steel Pipe
ERW Steel Pipe
ERW Steel Pipe
ERW Steel Pipe
ERW Steel Pipe
  • Keywords: ERW Steel Pipe, ERW Carbon Steel Pipe, Mild steel pipe, Electric Resistance Welded steel pipe
  • Standard : ASTM A53, A106, API 5L, ASME B36
  • Size : 1/2” NB - 24” NB
  • Materials : Q235, Q345, A53B, A106B, API 5L B, X42, X46, X52, X60, X65
  • Ends: Square Ends/Plain Ends (straight cut, saw cut, torch cut),Beveled/Threaded Ends
  • Surface:Black Painting/Oil Painting/Anti-Rust oil/Anti-Corrosive Coating
  • Wall Thickness : SCH10,SCH20,SCh20,STD,SCh20,SCp0,XS,SCH80,SCH100,SCH120,SCH140,SCH160,XXS DIN, JIS standard thickness
  • Length : Fixed: 5.8, 6.0, 11.8, 12.0m Random length: 5-12m

Product Description of ERW Steel Pipe:

ERW (Electric Resistance Welded) steel pipe is a widely used product manufactured from high-quality carbon steel coils through a continuous forming and high-frequency welding process. By precisely heating and forging the edges of the steel strip, a strong and uniform longitudinal weld is formed without the need for filler material, ensuring excellent structural integrity and consistency. ERW steel pipes are known for their high dimensional accuracy, smooth surface finish, and stable mechanical properties, making them ideal for applications requiring tight tolerances and reliable performance. The advanced production process enables efficient large-scale manufacturing while maintaining strict quality control in accordance with international standards such as API, ASTM, and EN. With good strength, weldability, and cost-effectiveness, carbon ERW steel pipes are extensively used in oil and gas transportation, water supply, construction, mechanical engineering, and structural applications. They can also be further processed with various coatings such as 3LPE, galvanizing, or painting to enhance corrosion resistance and extend service life in harsh environments.


Features of ERW Steel Pipe

High Dimensional Accuracy: Advanced forming and welding processes ensure tight tolerances in outer diameter and wall thickness, meeting precise engineering requirements.

Superior Weld Integrity: High-frequency resistance welding creates and uniform seam with excellent mechanical strength and consistency.

Smooth Surface Finish: Both internal and external surfaces are clean and uniform, making them suitable for coating, lining, and further processing.

Excellent Mechanical Properties: Good strength, toughness, and weldability enable reliable performance under various working conditions.

Cost-Effective Production: Continuous manufacturing allows high efficiency and reduced material waste, offering competitive pricing advantages.

Versatile Applications: Widely used in oil & gas pipelines, water transmission, construction, and structural engineering.

Enhanced Corrosion Protection: Can be combined with coatings such as galvanizing, 3LPE, or painting to improve durability in harsh environments.


Application of ERW Steel Pipe

① Oil and Gas Project.

② Water supply and drainage systems.

③ Municipal infrastructure.

④ Industrial infrastructure.

⑤ Construction and structural field.

⑥ Mechanical Engineering.

⑦ Manufacturing.

⑧ Machinery Components.

⑨ Automotive Parts.

⑩ Equipment Fabrication.

⑪ HVAC systems.

⑫ Fire Protection Pipelines

⑬ Agricultural Irrigation.

⑭ General Industrial Applications.


Specifcation of ERW Steel Pipe

INCH

OD

(MM)

Standard Wall Thickness



SCH 10WT


(mm)

SCH 20WT


(mm)

SCH 40WT


(mm)

SCH 60WT


(mm)

SCH 80WT

(mm)

SCH 100WT

(mm)

SCH 160WT

(mm)

XXS

(mm)

1/4”

13.7



2.24


3.02




3/8”

17.1



2.31


3.2




1/2”

21.3

2.11


2.77


3.73


4.78

7.47

3/4"

26.7

2.11


2.87


3.91


5.56

7.82

1"

33.4

2.77


3.38


4.55


6.35

9.09

1-1/4"

42.2

2.77


3.56


4.85


6.35

9.7

1-1/2"

48.3

2.77


3.68


5.08


7.14

10.15

2"

60.3

2.77


3.91


5.54


8.74

11.07

2-1/2"

73

3.05


5.16


7.01


9.53

14.02

3"

88.9

3.05


5.49


7.62


11.13

15.24

3-1/2"

101.6

3.05


5.74


8.08




4"

114.3

3.05

4.5

6.02


8.56


13.49

17.12

5"

141.3

3.4


6.55


9.53


15.88

19.05

6"

168.3

3.4


7.11


10.97


18.26

21.95

8"

219.1

3.76

6.35

8.18

10.31

12.7

15.09

23.01

22.23

10"

273

4.19

6.35

9.27

12.7

15.09

18.26

28.58

25.4

12"

323.8

4.57

6.35

10.31

14.27

17.48

21.44

33.32

25.4

14"

355

6.35

7.92

11.13

15.09

19.05

23.83

36.71


16"

406

6.35

7.92

12.7

16.66

21.44

26.19

40.49


18"

457

6.35

7.92

14.27

19.05

23.83

29.36

46.24


20"

508

6.35

9.53

15.09

20.62

26.19

32.54

50.01


22"

559

6.35

9.53


22.23

28.58

34.93

54.98


24"

610

6.35

9.53

17.48

24.61

30.96

38.89

59.54


26"

660

7.92

12.7







28"

711

7.92

12.7







30"

762

7.92

12.7







32"

813

7.92

12.7

17.48






34"

863

7.92

12.7

17.48






36"

914

7.92

12.7

19.05






38"

965









40"

1016









42"

1066









44"

1117









46"

1168









48"

1219










Standard of ERW Steel Pipe

ASTM 5L, ASTM A53, ASTM A178, ASTM A500/501, ASTM A691, ASTM A252, ASTM A672, EN 10217

Steel Grade:

API 5L: PSL1/PSL2  Gr.A, Gr.B, X42, X46, X52, X56, X60, X65, X70

ASTM A53: GR.A, GR.B,ASTM A500 JIS G3466

EN: S275, S275JR, S355JRH, S355J2H,EN10219-1 ,EN10217-1

GB: Q195, Q215, Q235, Q345, L175, L210, L245, L320, L360-L555

Standard

Class

Grade

Chemical Analysis(%)

Mechanical Properties(min)(Mpa)

C

Mn

P

S

Tensile Strength

Yield Strength

API 5L

PSL1

B

0.26

1.2

0.03

0.03

414

241

X42

0.26

1.3

0.03

0.03

414

290

X46

0.26

1.4

0.03

0.03

434

317

X52

0.26

1.4

0.03

0.03

455

359

X56

0.26

1.4

0.03

0.03

490

386

X60

0.26

1.4

0.03

0.03

517

414

X65

0.26

1.45

0.03

0.03

531

448

X70

0.26

1.65

0.03

0.03

565

483

PSL2

B

0.22

1.2

0.025

0.015

414

241

X42

0.22

1.3

0.025

0.015

414

290

X46

0.22

1.4

0.025

0.015

434

317

X52

0.22

1.4

0.025

0.015

455

359

X56

0.22

1.4

0.025

0.015

490

386

X60

0.22

1.4

0.025

0.015

517

414

X65

0.22

1.45

0.025

0.015

531

448

X70

0.22

1.65

0.025

0.015

565

483

X80

0.22

1.85

0.025

0.015

621

552







Manufacturing Process of ERW Steel Pipe

ERW steel pipe

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