• ERW Welded Pipes System 1
  • ERW Welded Pipes System 2
  • ERW Welded Pipes System 3
ERW Welded Pipes

ERW Welded Pipes

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Loading Port:
Tianjin Port
Payment Terms:
TT or L/C
Min Order Qty:
50MT m.t.
Supply Capability:
50000Ton Per Month m.t./month

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Specifications of ERW Welded Pipes,

Application of ERW Welded Pipes:

It is widely applied to line pipe and casing and tubing in oil transportation and casing field, and it is used in Low,high pressure liquid and gassy transportation and it is also good Structure pipe (for furniture, window, door, building , bridge, mechanical etc).

Standard of ERW Welded Pipes: API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1

Steel Grade of ERW Welded Pipes:API SPEC 5L: B, X42, X46, X52, X56, X60, X65

API SPEC 5CT: J55, K55, N80, L80-1

ASTM A53: A, B, C

GB/T9711.1:L242、L290、L320、L360、L390、L415、L450

Sizes of ERW Welded Pipes:

Standard: GB/9711.1

Mechanical Properties

Remark: Besides below sizes, we also can arrange production based on requirement of customers

OD

WT

WEIGHT

INCH

MM

SCH

MM

INCH

KG/M

LB/INCH

1 1/2”

48.3

STD-40

3.68

0.145

4.09

2.75

1 1/2”

48.3

XS-80

5.08

0.2

5.47

3.68

2”

60.3

STD-40

3.91

0.154

5.49

3.69

2”

60.3

XS-80

5.54

0.218

7.56

5.08

2 1/2”

73

STD-40

5.16

0.203

8.72

5.86

2 1/2”

73

XS-80

7.01

0.276

11.52

7.74

3”

88.9

STD-40

5.49

0.216

11.41

7.67

3”

88.9

XS-80

7.62

0.3

15.43

10.37

3 1/2”

101.6

STD-40

5.74

0.226

13.71

9.21

3 1/2”

101.6

XS-80

8.08

0.318

18.83

12.65

4”

114.3

STD-40

6.02

0.237

16.24

10.91

4”

114.3

XS-80

8.56

0.337

22.55

15.15

5”

141.3

STD-40

6.55

0.258

21.99

14.78

5”

141.3

XS-80

9.53

0.375

31.28

21.02

6”

168.3

STD-40

7.11

0.28

28.55

19.19

6”

168.3

XS-80

10.97

0.432

42.99

28.89

8”

219.1

STD-40

8.18

0.322

42.98

28.88

8”

219.1

XS-80

12.7

0.5

65.3

43.88

10”

273

STD-40

9.27

0.365

60.9

40.92

10”

273

80

15.09

0.594

96.95

65.15

12”

323.8

STD

9.53

0.375

74.61

50.13

12”

323.8

40

10.31

0.406

80.51

54.1

12”

323.8

XS

12.7

0.5

98.42

66.14

12”

323.8

80

17.48

0.688

133.38

89.63

14”

355.6

40

11.13

0.438

95.51

64.18

14”

355.6

XS

12.7

0.5

108.48

72.9

14”

355.6

80

19.05

0.75

159.71

107.32

16”

406.4

XS-40

12.7

0.5

124.55

83.69

18”

457

STD

9.53

0.375

106.23

71.38

18”

457

40

14.27

0.562

157.38

105.75

18”

457

80

23.83

0.938

257.13

172.78

20”

508

40

15.09

0.594

185.28

124.5

20”

508

80

26.19

1.031

314.33

211.22

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 ERW Welded Pipes

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Coils to product ERW.

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Welcome to contact us for ERW Welded Pipes .

Q: How are steel pipes used in the fabrication of storage tanks?
Due to their strength, durability, and versatility, steel pipes are widely employed in the construction of storage tanks. Throughout the tank fabrication process, these pipes serve various functions. To begin with, steel pipes are utilized in establishing the tank's foundation. By providing a robust base, they ensure stability and prevent potential structural problems. Moreover, steel pipes are employed in constructing the tank's shell. Through welding, these pipes are joined together to form a cylindrical structure capable of withstanding the pressure and weight of the stored material. Furthermore, steel pipes are crucial for installing inlet and outlet pipes. These pipes enable the controlled flow of materials in and out of the storage tank. Additionally, steel pipes frequently play a role in fabricating support structures within the tank. These structures distribute the weight of the stored material and offer additional reinforcement to the tank. When it comes to maintenance and repair, steel pipes are also essential. They are used to install access points such as manholes or inspection ports, facilitating routine inspections, cleaning, and any necessary repairs. In summary, steel pipes are indispensable in the fabrication of storage tanks, providing a resilient and dependable framework. They are employed in constructing the tank's foundation, shell, inlet and outlet pipes, support structures, and access points. With their durability and versatility, steel pipes ensure the integrity and functionality of storage tanks.
Q: What are the different types of steel pipe connections?
There are several types of steel pipe connections, including threaded connections, welded connections, flanged connections, and grooved connections.
Q: How do steel pipes handle thermal expansion and contraction?
The unique properties and design of steel pipes enable them to handle thermal expansion and contraction. When exposed to high temperatures, steel pipes expand as the molecules in the material gain energy and become more active. Conversely, when exposed to low temperatures, steel pipes contract as the molecules lose energy and become less active. To accommodate these changes, steel pipes are manufactured with specific features. One such feature is the inclusion of clearance between pipe joints. This clearance allows for expansion and contraction without causing stress or deformation in the pipe. Additionally, expansion joints or flexible connectors are used within the piping system to absorb thermal movements and prevent damage. Moreover, steel pipes are commonly installed with appropriate anchoring and support systems. These systems are designed to allow the pipes to expand and contract within a certain range without exerting excessive stress or strain on the structure or surrounding components. Anchoring and support systems also help maintain the overall stability and integrity of the piping system. In certain cases, thermal insulation materials are applied to steel pipes to minimize temperature changes and mitigate the effects of expansion and contraction. These insulating materials assist in maintaining a consistent temperature within the pipe, thereby reducing the magnitude of thermal movements. Overall, due to their inherent strength and flexibility, steel pipes are well-equipped to handle thermal expansion and contraction. With proper design, installation, and maintenance, steel pipes can effectively accommodate temperature changes without compromising their structural integrity or functionality.
Q: Seamless steel tube DN15 specification phi 18*3 what do you mean?
Seamless steel pipe having a hollow cross section, used as a conduit for conveying fluids, such as pipelines for transporting petroleum, natural gas, gas, water, and certain solid materials. Compared with solid steel such as round steel, steel tube is lighter in strength and equal in resistance to bending and torsion. It is an economical cross section steel and is widely used in the manufacture of structural and mechanical parts.
Q: How do steel pipes handle vibrations?
Steel pipes are known for their ability to handle vibrations effectively. Due to their strong and rigid nature, steel pipes can withstand various types of vibrations, including mechanical vibrations and seismic activities. The resilience of steel pipes is attributed to their structural integrity and strength. Steel pipes have high tensile strength, which enables them to resist deformation or breakage when subjected to vibrations. They are also resistant to fatigue, meaning they can endure repeated vibrations without experiencing any significant damage. This makes steel pipes ideal for applications that involve constant or cyclic vibrations, such as in industrial settings or for transportation of fluids through pipelines. Moreover, steel pipes have the advantage of being able to dampen vibrations due to their mass. The weight of the steel pipe helps absorb and dissipate the energy produced by vibrations, preventing excessive movement or oscillation. This damping effect contributes to the overall stability and durability of the pipe system. To further enhance the ability of steel pipes to handle vibrations, various measures can be taken. These may include the use of vibration isolators or dampers, which are devices designed to reduce the transmission of vibrations from the surrounding environment. Additionally, proper installation techniques and regular maintenance can help ensure that steel pipes continue to perform optimally under vibration-prone conditions. In summary, steel pipes are well-suited to handle vibrations due to their strength, resistance to fatigue, and ability to dampen vibrations. Their robustness and durability make them a reliable choice for applications where vibrations are a concern, ensuring the safe and efficient transport of fluids or materials.
Q: How are steel pipes tested for quality assurance?
Steel pipes are tested for quality assurance through various methods such as hydrostatic testing, non-destructive testing (NDT) techniques like ultrasonic testing, magnetic particle testing, and visual inspection. These tests ensure that the pipes meet the required standards and specifications, checking for flaws, defects, and proper dimensional accuracy.
Q: What is the role of steel pipes in the renewable energy sector?
The transportation and distribution of various energy sources in the renewable energy sector heavily rely on steel pipes. An important application of steel pipes is seen in the construction of pipelines for transporting natural gas, which is increasingly being used as a cleaner alternative to traditional fossil fuels. Due to its strength, durability, and resistance to corrosion, steel is commonly chosen for these pipelines, ensuring the secure and efficient delivery of natural gas to power plants and other energy consumers. Furthermore, steel pipes are utilized in the installation of geothermal energy systems. Geothermal energy utilizes the heat from the earth's core to generate electricity or provide heating and cooling. Steel pipes are employed to create geothermal wells, allowing the extraction of hot water or steam from underground reservoirs. These pipes must withstand high temperatures and pressures, making steel an ideal material for this purpose. Additionally, hydraulic systems for hydroelectric power plants heavily rely on steel pipes. These power plants generate electricity using the force of flowing water, and steel pipes are used to convey water from the reservoir to the turbines. The durability and reliability of steel ensure the efficient transmission of water, enabling hydroelectric power plants to produce clean and renewable energy. In the construction of solar power plants, steel pipes also play a crucial role. Solar thermal systems concentrate sunlight to generate heat, which is then transferred to a fluid to produce steam and drive turbines. Steel pipes are essential for circulating and transferring this fluid, ensuring the effective operation of the solar power plant. In conclusion, steel pipes are indispensable in the renewable energy sector due to their strength, durability, and resistance to corrosion. They facilitate the transportation of natural gas, the extraction of geothermal energy, the transmission of water in hydroelectric power plants, and the circulation of fluids in solar power plants. By enabling the efficient distribution of various energy sources, steel pipes significantly contribute to the growth and sustainability of the renewable energy sector.
Q: How are steel pipes protected against ultraviolet radiation?
Steel pipes are typically protected against ultraviolet radiation through the application of specialized coatings or paints that contain UV inhibitors. These coatings create a barrier between the steel surface and the harmful UV rays, preventing the degradation and discoloration of the pipes. Additionally, some steel pipes may be wrapped with UV-resistant tape or sleeves for added protection against prolonged exposure to sunlight.
Q: What is the difference between steel pipe and concrete pipe?
The main difference between steel pipe and concrete pipe lies in their material composition. Steel pipes are made from steel, which provides strength, durability, and resistance to corrosion. On the other hand, concrete pipes are made from a mixture of cement, aggregates, and reinforcing materials, offering advantages such as fire resistance and the ability to withstand high pressure. While steel pipes are commonly used for transporting fluids and gases, concrete pipes are often used in drainage and sewage systems.
Q: Can steel pipes be used for the construction of dams?
Yes, steel pipes can be used for the construction of dams. Steel pipes are often used in dam construction for various purposes such as water intake and outlet structures, penstocks, and spillway gates. They offer durability, strength, and resistance to corrosion, making them suitable for withstanding the high pressures and harsh environments associated with dam construction.
All these steel pipes are suitable for the industries of oil, natural gas,ship building,chemical, environmental protection,boiler, water conservancy, electrical industry,steel structure, building and other related fields.Our company following the principle that ‘customer supemacy, business integrity’We will do our best to supply best products and service to our customers. We expect mutual benefit.

1. Manufacturer Overview

Location Tianjin, China
Year Established 2004
Annual Output Value 250,000Tons
Main Markets Europe; South America; Americas;etc.
Company Certifications API 5L;API 5CT;ISO 9001:2008 GB/T 19001-2008;ISO 9001:2008

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a) Trade Capacity
Nearest Port Tianjin
Export Percentage 50% - 60%
No.of Employees in Trade Department 1000-2000 People
Language Spoken: English; Chinese; Spanish
b) Factory Information
Factory Size: Above 70,000 square meters
No. of Production Lines Above 8
Contract Manufacturing OEM Service Offered; Design Service Offered
Product Price Range Average

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