Structure ERW Welded Pipe API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1

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Structure ERW Welded Pipe API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1

 

Application of  Structure ERW Welded Pipe API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1:

 

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).

 

Package of Structure ERW Welded Pipe API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1:

 

bundles with anti-rust painting and with plastic caps

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

API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1

 

Steel Grade of  Structure ERW Welded Pipe API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1:

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 Structure ERW Welded Pipe API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1:

*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

 

 

 

 

Standard

Grade

C

Mn

P

S

Max

Max

Max

Max

GB/T9711.1

L245

0.26

0.15

0.030

0.030

L290

0.28

1.25

0.030

0.030

L320, L360

0.30

1.25

0.030

0.030

L390, L415

0.26

1.35

0.030

0.030

L450

0.26

1.40

0.030

0.030

L485

0.23

1.60

0.025

0.030

 

 

 

 

Standard

Grade

(MPa)

Yield strength

(MPa)

Tensile Strength

Min(%)

Elongation

 

 

GB/T9711.2

 

Rt0.5Min

Rt0.5Max

RmMin

Rt0.5/Rm Max

 

L245

 

245

 

440

 

0.80

   

22

L245

0.85

L290

 

290

 

440

 

0.80

21

L290

0.85

L360

 

360

 

510

 

0.85

 

20

L360

0.85

L415

 

415

 

565

 

0.85

 

18

L415

0.85

L450

450

570

535

0.87

18

L485

485

605

570

0.90

18

 

Standard

Grade

C

Mn

P

S

V

Nb

Ti

CEV

Max

Max

Max

Max

Max

Max

Max

Max

GB/T9711.2

L245NB

0.16

1.1

0.025

0.020

-

-

-

0.42

L290NB

0.17

1.2

 

0.025

 

0.020

0.05

0.05

0.04

0.42

L360NB

0.20

1.6

 

0.025

 

0.020

0.10

0.05

0.04

0.45

L415NB

0.21

1.6

 

0.025

 

0.020

0.15

0.05

0.04

-

L245NB, L290NB

 

0.16

 

1.5

 

0.025

 

0.020

 

0.04

 

0.04

 

-

 

0.4

L360NB

 

0.16

1.6

 

0.025

 

0.020

0.05

0.05

0.04

0.41

L415NB

 

0.16

1.6

 

0.025

 

0.020

0.08

0.05

0.06

0.42

L450NB

 

0.16

1.6

 

0.025

 

0.020

0.10

0.05

0.06

0.43

L485NB

 

0.16

1.7

 

0.025

 

0.020

0.10

0.06

0.06

0.43

 

Standard: ASTM A53

 

Mechanical Properties

Standard

Grade

(MPa)

(MPa)

Yield strength

Tensile Strength

ASTM A53M

A

205

330

B

240

415

 

Chemical Composition(%)

Standard

Grade

C

Mn

P

S

V

Ni

Cu

Cr

Mo

Max

Max

Max

Max

Max

Max

Max

Max

Max

ASTM A53M

A

0.25

0.95

0.05

0.045

0.08

0.4

0.5

0.4

0.15

B

 

0.30

1.20

 

0.05

 

0.045

0.08

0.4

0.5

0.4

0.15

 

 

Q:
Steel pipes are highly resistant to chemical substances due to their high strength and corrosion-resistant properties. They can safely handle a wide range of chemical substances without undergoing any significant degradation or damage.
Q:
Steel pipes are inspected for compliance with industry standards through various methods, including visual examination, dimensional measurements, non-destructive testing, and mechanical testing. Trained inspectors carefully inspect the pipes to ensure they meet the required specifications, such as wall thickness, diameter, and surface quality. Non-destructive testing techniques like ultrasonic testing or magnetic particle inspection are used to detect any internal or surface defects. Mechanical tests, such as tensile or bend tests, are performed to evaluate the pipe's strength and ability to withstand pressure. These inspections help ensure that steel pipes meet the necessary industry standards and are fit for their intended use.
Q:
Steel pipes are widely used in airport infrastructure for various purposes. They are used for constructing the framework of airport terminals, hangars, and other buildings. Steel pipes are also used for the installation of HVAC systems, electrical wiring, and plumbing in airport facilities. Additionally, steel pipes are used for the construction of runways, taxiways, and aprons, providing a strong and durable foundation for aircraft operations.
Q:
Steel pipes can be inspected using various methods. Here are some commonly employed techniques: 1. Visual Inspection: Trained inspectors visually examine both the exterior and interior of the pipe to detect any visible defects or abnormalities. This preliminary method is often used before more advanced techniques are applied. 2. Magnetic Particle Inspection (MPI): By applying a magnetic field to the steel pipe and iron particles to its surface, inspectors can identify surface cracks or defects. Leakage of magnetic flux caused by these abnormalities can be detected with this method, which is particularly effective for ferromagnetic materials. 3. Ultrasonic Testing (UT): UT is a non-destructive testing method that utilizes high-frequency sound waves to identify internal defects or anomalies in steel pipes. A transducer sends ultrasonic waves into the pipe, and reflections or echoes of the sound waves are analyzed to determine the presence of defects, such as corrosion, cracks, or variations in wall thickness. 4. Radiographic Testing (RT): This method involves using X-rays or gamma rays to create an image of the internal structure of the steel pipe. The resulting image reveals any defects, such as cracks, corrosion, or weld discontinuities. RT is commonly used for inspecting welded joints. 5. Eddy Current Testing (ECT): ECT is a non-destructive testing technique that utilizes electromagnetic induction to detect surface and near-surface defects in steel pipes. By passing a coil carrying an alternating current over the pipe's surface, any changes in electrical conductivity or magnetic field caused by defects are detected and analyzed. 6. Acoustic Emission Testing (AET): AET involves detecting and analyzing high-frequency acoustic signals emitted by materials undergoing deformation or damage. In the case of steel pipes, AET can monitor and identify defects like cracks, leaks, or corrosion by analyzing the acoustic signals emitted during service or under stress. These methods are just a few examples of commonly used techniques for inspecting steel pipes. The choice of method depends on factors such as the type of defect being sought, accessibility of the pipe, desired sensitivity level, and cost and time constraints. Using a combination of inspection techniques is often recommended to ensure a thorough assessment of steel pipes.
Q:
The manufacturing process of wind turbines relies heavily on steel pipes, which are essential components for constructing both the tower and the foundation. The tower, a tall and sturdy structure, is typically made by welding together large steel pipes. These pipes are responsible for providing the necessary strength and stability to bear the weight of the entire wind turbine and withstand the powerful forces generated by the rotating blades. Apart from the tower, steel pipes are also crucial in building the foundation of the wind turbine. The foundation requires a solid and stable base to ensure the turbine remains upright and secure. To achieve this, deep foundation piles made of thick-walled steel pipes are commonly used. These piles are driven deep into the ground to anchor the wind turbine and prevent it from toppling over. Furthermore, steel pipes are utilized in the transportation of the electricity generated by wind turbines. Once the wind energy is converted into electrical energy, it is transmitted through an internal electrical system to the base of the tower. From there, the electricity is often transferred through underground cables to a substation, where it is distributed into the power grid. Steel pipes are employed to protect and encase these cables, ensuring insulation and safe transmission of electricity. In summary, steel pipes play a critical role in wind turbine manufacturing by providing structural support, stability, and efficient electricity transmission. The durability and strength of steel make it an ideal material for enduring the harsh environmental conditions and immense forces associated with the operation of wind turbines.
Q:
Steel pipes are widely used in the petrochemical industry for transporting and distributing various fluids and gases. They are particularly valuable for their durability, strength, and resistance to corrosion, which is crucial when dealing with highly corrosive substances. Steel pipes are employed in various processes such as refining, oil and gas production, chemical manufacturing, and transportation of petrochemical products. Whether it's conveying raw materials, transferring processed products, or supporting infrastructure, steel pipes play a vital role in ensuring the safe and efficient operation of the petrochemical industry.
Q:DN150 welded steel tubes one meter multiple
Calculated theoretical weight (Kg) per inch of welded steel pipe = (outside diameter wall thickness) * wall thickness * 0.02466DN150 welded pipe, "150" means nominal diameter of 150mm. Its outer diameter is 165mm.
Q:
The maximum operating temperature for steel pipes can vary depending on the grade of steel used, but it is generally around 1000°C (1832°F) for standard carbon steel pipes.
Q:
Steel pipes are commonly used in the oil and gas industry for various applications such as drilling, production, transportation, and distribution of oil and gas. They are utilized for casing and tubing in oil wells, conveying fluids in pipelines, and supporting infrastructure for refineries and processing plants. Additionally, steel pipes are crucial for offshore drilling operations and are employed in the construction of platforms and subsea pipelines.
Q:
Steel pipes are commonly used in the telecommunications infrastructure industry for various purposes such as supporting overhead cables, protecting underground cables, and providing structural stability to transmission towers and equipment.
The company has successively passed ISO9000 quality system, the American Petroleum Institute API, and also earned the environment healthy license, national special equipment manufacturing license.

1. Manufacturer Overview

Location Hebei, China
Year Established 1988
Annual Output Value Above One Hundred Million RMB
Main Markets Main land; Southeast Asia; Middle East; Africa
Company Certifications ISO 9002:2010;API 5L

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Tianjin
Export Percentage 30%-50%
No.of Employees in Trade Department 201-500 People
Language Spoken: English; Chinese
b)Factory Information  
Factory Size: 50,000 square meters
No. of Production Lines Above 15
Contract Manufacturing Meicai Metal Trading Co.Ltd
Product Price Range Average

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