Seamless Line Pipe

Seamless Line Pipe

Seamless line pipe operating environment of the pipeline
long lines, and not easy to maintain
the quality requirements are very serious.The main material of the tube is gr.b
X42, X46, X56, X65, X70, X80, X100 and other steel grades
Many of the challenges facing seamless line pipe
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Product Details

Seamless line pipe operating environment of the pipeline, long lines, and not easy to maintain, the quality requirements are very serious.The main material of the tube is gr.b, X42, X46, X56, X65, X70, X80, X100 and other steel grades.

seamless line pipe 4_副本seamless line pipe1_副本

Many of the challenges facing seamless line pipe include:Most oil and gas fields are located in polar, ice sheet, desert and ocean areas, where natural conditions are relatively poor. Perhaps in order to move forward, the diameter of pipeline is expanding, the pressure of pipeline is increasing, and the corrosion of oil products in pipeline activities is also increasing.  

From the development trend, pipeline laying conditions, primary failure methods and failure causes of oil and gas pipelines, it is concluded that pipeline steel should have excellent mechanical functions (thick wall, high strength, high resistance to wear and tear), large caliber, weldability, cold and low temperature resistance, corrosion resistance (CO2), seawater resistance, HIC and SSCC functions. And so on.

Mechanical properties:

Standard

Product Level

Steel grade

Yield Strength (min), Mpa

Tensile Strength(MPa)

API 5L GB/T9711.2

PSL 1

A or L210

210

335

B or L245

245

415

x42 or L290

290

415

X46 or L320

320

435

X52 or L360

360

460

X56 or L390

390

490

X60 or L415

415

520

X70

483

565

PSL 2

BR or L245R

245~450

415~760

X42R or L290R

290~495

415~760

BN or L245N

245~450

415~760

X42N or L290N

290~495

415~760

X46N or L320N

320~525

435~760

X52N or L360N

360~530

460~760

X56N or L390N

390~545

490~760

X60N or L415N

415~565

520~760

X65N or L450N

425~566

525~760

X70 or L480

484~565

565~768

X80

552~690

621~827

Linepipe chemical elements:

roduct Level

Steel grade

Chemical composition, %

C

Mn

P

S

Si

V

Nb

Ti

CEpcm

PSL 1

B or L245

≤0.28

≤1.20

≤0.030

≤0.030

-

-

-

-

-

x42 or L290

≤0.28

≤1.30

≤0.030

≤0.030

-

-

-

-

-

X46 or L320

≤0.28

≤1.40

≤0.030

≤0.030

-

-

-

-

-

X52 or L360

≤0.28

≤1.40

≤0.030

≤0.030

-

-

-

-

-

X56 or L390

≤0.28

≤1.40

≤0.030

≤0.030

-

-

-

-

-

X60 or L415

≤0.28

≤1.40

≤0.030

≤0.030

-

-

-

-

-

X70

≤0.28

≤1.40

≤0.030

≤0.030

-

-

-

-

-

PSL 2

BR or L245R

≤0.24

≤1.20

≤0.025

≤0.015

≤0.40

c

c

≤0.04

≤0.25

X42R or L290R

≤0.24

≤1.20

≤0.025

≤0.015

≤0.40

≤0.06

≤0.05

≤0.04

≤0.25

BN or L245N

≤0.24

≤1.20

≤0.025

≤0.015

≤0.40

c

c

≤0.04

≤0.25

X42Nor L290N

≤0.24

≤1.30

≤0.025

≤0.015

≤0.40

≤0.06

≤0.05

≤0.04

≤0.25

X46Nor L320N

≤0.24

≤1.40

≤0.025

≤0.015

≤0.40

≤0.07

≤0.05

≤0.04

≤0.25

X52Nor L360N

≤0.24

≤1.40

≤0.025

≤0.015

≤0.45

≤0.10

≤0.05

≤0.04

≤0.25

X56Nor L390N

≤0.24

≤1.40

≤0.025

≤0.015

≤0.45

≤0.10

≤0.05

≤0.04

≤0.25

X60Nor L415N

≤0.24

≤1.40

≤0.025

≤0.015

≤0.45

≤0.10

≤0.05

≤0.04

-

X65Nor L450N

≤0.24

≤1.40

≤0.025

≤0.015

≤0.45

≤0.10

≤0.05

≤0.04

-

X70N

≤0.24

≤1.40

≤0.025

≤0.015

≤0.45

≤0.10

≤0.05

≤0.04

-

X80

≤0.24

≤1.40

≤0.025

≤0.015

≤0.45

≤0.10

≤0.05

≤0.04

-

API SPEC 5L Pipeline Specification

Nominal Size

Outside Diameter

Wall Thickness

Plain-end Weight





inch

mm

inch

mm

lb/ft

kg/m



0.405

0.405

10.29

0.095

2.4

0.31

0.47


0.54

0.54

13.72

0.088

2.2

0.43

0.62


0.54

13.72

0.119

3.0

0.54

0.79



0.675

0.675

17.15

0.091

2.3

0.57

0.84


0.675

17.15

0.126

3.2

0.74

1.10



0.84

0.84

21.34

0.109

2.8

0.85

1.28


0.84

21.34

0.147

3.7

1.09

1.61



1.05

1.05

26.67

0.113

2.9

1.13

1.70


1.05

26.67

0.154

33.4

0.133

3.4

1.68

2.52

1.315

33.4

0.179

4.6

2.17

3.21



1.660

1.660

42.2

0.145

3.7

2.72

3.43


1.660

42.2

0.191

4.9

3.00

4.51



1.900

1.660

42.2

0.382

9.7

5.22

7.77


1.900

48.3

0.145

3.7

2.72

4.07



1.900

48.3

0.200

5.1

3.63

5.43



1.900

48.3

0.400

10.2

6.41

9.58



2 3/8

2.375

60.3

0.109

2.8

2.64

3.97


2.375

60.3

0.125

3.2

3.00

4.51



2.375

60.3

0.141

3.6

6.36

5.03



JDSTEELPIPE is one of the leading Seamless line pipe manufacturers and suppliers,If you want to know the Seamless line pipe,please to contact us. Our customer service specialists will be happy to help you.info@jiade-group.com.

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