
Outer Diameter (OD): 1" – 24" (33.4mm – 609.6mm)
Wall Thickness (WT): 1.8mm-14mm
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
Types of ERW Steel Pipe
|
Type |
Description |
Common Standards |
|
Carbon Steel ERW Pipe |
Manufactured from carbon steel coils, carbon steel ERW pipes feature low cost, good machinability, and wide applicability, and are commonly used in fluid transportation, structural construction, and industrial piping systems. |
ASTM A53, ASTM A500, API 5L, EN 10219 |
|
ERW Line Pipe |
ERW line pipes are mainly used for oil, gas, water, and other fluid transmission applications, offering reliable strength, weld integrity, and pressure resistance. |
API 5L Gr.B, X42, X52, X60 |
|
ERW Structural Pipe |
Designed for structural and construction applications, ERW structural pipes provide excellent dimensional accuracy, load-bearing performance, and weldability for buildings, bridges, and machinery. |
ASTM A500, EN 10219, JIS G3444 |
|
ERW Boiler Tube |
ERW boiler tubes are widely used in boilers, heat exchangers, and pressure equipment, providing good heat resistance, pressure performance, and dimensional stability. |
ASTM A178, ASTM A214, EN 10217 |
|
ERW Mechanical Tube |
ERW mechanical tubes are used in machinery, automotive components, hydraulic equipment, and precision engineering, featuring high dimensional precision, smooth surface finish, and good processing performance. |
ASTM A513, DIN 2391, EN 10305 |
|
ERW Casing & Tubing |
ERW casing and tubing are primarily used in oil and gas drilling and extraction operations, offering strong sealing capability, pressure resistance, and corrosion protection. |
API 5CT |
|
High Frequency ERW Pipe (HFW Pipe) |
Produced using high-frequency electric resistance welding technology, HFW pipes provide fast production speed, stable weld quality, and high manufacturing efficiency. |
API 5L, ASTM A53, EN 10219 |
|
Mild Steel ERW Pipe |
Made from low-carbon steel materials, mild steel ERW pipes offer good ductility, weldability, and cost efficiency for general structural and low-pressure piping applications. |
Q235, ASTM A53 Grade A |
|
Alloy Steel ERW Pipe |
Alloy steel ERW pipes contain alloying elements such as chromium, molybdenum, and nickel to improve strength, wear resistance, and high-temperature performance. |
ASTM A335, ASTM A691 |
|
Black ERW Steel Pipe |
Black ERW steel pipes retain their original black mill finish, offering economical production and easy fabrication for structural and general industrial applications. |
ASTM A53, API 5L |
|
Galvanized ERW Pipe |
Galvanized ERW pipes use hot-dip or pre-galvanizing processes to improve corrosion resistance and are widely applied in water supply, fire protection, fencing, and outdoor structures. |
ASTM A53, ASTM A795, BS 1387 |
|
Coated ERW Pipe |
Coated ERW pipes utilize surface treatments such as 3PE, FBE, epoxy, or anti-corrosion coatings to enhance durability in underground pipelines, marine engineering, and oil & gas transportation. |
API 5L, DIN 30670 |
|
Plain End ERW Pipe |
Plain end ERW pipes feature smooth pipe ends for easy cutting, fabrication, and connection in general piping and structural applications. |
ASTM A53, ASTM A500 |
|
Beveled End ERW Pipe |
Beveled end ERW pipes are manufactured with beveled pipe ends to facilitate field welding installation in oil & gas, pressure piping, and industrial systems. |
API 5L, ASTM A53 |
|
Threaded & Coupled ERW Pipe |
Threaded & coupled ERW pipes use threaded ends and couplings for convenient installation and maintenance in fire protection, water supply, and low-pressure piping systems. |
ASTM A53, ASTM A795, BS 1387 |
Applications of ERW Steel Pipe
Oil & Gas Industry
ERW steel pipes are widely used in the oil and gas industry for the transportation of crude oil, natural gas, petroleum products, and other industrial fluids due to their reliable weld quality and good pressure resistance.
Water Transmission Systems
ERW steel pipes are commonly applied in water supply, drainage, irrigation, and municipal pipeline systems, offering an economical and efficient solution for fluid transportation.
Construction & Structural Engineering
In construction and structural engineering, ERW steel pipes are used for steel structures, buildings, bridges, scaffolding, and support frameworks because of their good strength and dimensional accuracy.
Mechanical Manufacturing
ERW steel pipes are widely used in machinery manufacturing, automotive components, hydraulic systems, and equipment fabrication, benefiting from their excellent machinability and processing performance.
Fire Protection Systems
Due to their stable performance and durability, ERW steel pipes are frequently used in fire sprinkler systems, fire protection pipelines, and emergency water supply networks.
Boiler & Heat Exchanger Equipment
Certain grades of ERW pipes are suitable for boilers, heat exchangers, and pressure equipment, providing reliable performance in heat transfer and industrial thermal systems.
Pile & Foundation Projects
ERW steel pipes are often used in piling and foundation applications for buildings, ports, bridges, and infrastructure projects, providing strong structural support.
Industrial Piping Systems
ERW steel pipes are extensively used in chemical plants, power plants, factories, and general industrial piping systems for transporting liquids, gases, and process media.
Agricultural Applications
In the agricultural sector, ERW steel pipes are used for irrigation pipelines, greenhouse structures, water delivery systems, and other farming infrastructure applications.
Fencing & Outdoor Structures
ERW steel pipes are also widely used in fencing, guardrails, poles, outdoor frameworks, and various steel construction projects due to their versatility and cost-effectiveness.
Specification
|
INCH
OD
(MM)
Strandard Wall Thickness
SCH 10WT
(mm)
SCH 20WT
(mm)
SCH 40WT
(mm)
SCH 60WT
(mm)
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
|
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Chemical Analysis and Mechanical Properties
Chemical Analysis and Mechanical Properties
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
415
245
X42
0.26
1.3
0.03
0.03
415
290
X46
0.26
1.4
0.03
0.03
435
320
X52
0.26
1.4
0.03
0.03
460
360
X56
0.26
1.4
0.03
0.03
490
390
X60
0.26
1.4
0.03
0.03
520
415
X65
0.26
1.45
0.03
0.03
535
450
X70
0.26
1.65
0.03
0.03
570
485
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
