High Quality ERW Welded Steel Pipes

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China Main Port
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TT or L/C
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50MT m.t.
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based on order m.t./month

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Product Description:

ERW Welded Steel Pipes

 

Application of High Quality ERW Welded Steel 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).

Package: bundles with anti-rust painting and with plastic caps

 

Standard of High Quality ERW Welded Steel Pipes

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

 

Steel Grade of High Quality ERW Welded Steel 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:L242L290L320L360L390L415L450

 

Sizes of pipes of High Quality ERW Welded Steel Pipes

*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: API SPEC 5L

Mechanical Properties of High Quality ERW Welded Steel Pipes

Standard

Grade

MPa

MPa

Yield strength

Tensile Strength

API SPEC 5L

PSL1

B

≥241

≥414

×42

≥290

≥414

×46

≥317

≥434

×52

≥359

≥455

×56

≥386

≥490

×60

≥414

≥517

×65

≥448

≥531

×70

≥483

≥565

PSL2

 

Min

Max

Min

Max

B

241

448

441

758

×42

290

496

414

758

×46

317

524

434

758

×52

359

531

455

758

×56

386

544

490

758

×60

414

565

517

758

×65

448

600

531

758

×70

483

621

565

758

 

Chemical Composition (%) of High Quality ERW Welded Steel Pipes

Standard

Grade

C

Mn

P

S

TI

CEV

Max

Max

Max

Max

Max

Max

API SPEC 5L

PSL1

B

0.26

1.2

0.030

0.030

0.04

 

 

-

×42

0.26

1.3

0.030

0.030

0.04

×46,×52,×56X60

0.26

1.4

0.030

0.030

0.04

X65

0.26

1.45

0.030

0.030

0.06

X70

0.26

1.65

0.030

0.030

0.06

PSL2

B

0.22

1.20

0.025

0.015

0.04

 

 

 

0.43

×42

0.22

1.30

0.025

0.015

0.04

×46,×52,×56, X60

0.22

1.40

0.025

0.015

0.04

X65

0.22

1.45

0.025

0.015

0.06

X70

0.22

1.65

0.025

0.015

0.06

 

Standard: GB/9711.1

 

Mechanical Properties of High Quality ERW Welded Steel Pipes

Standard

Grade

MPa

MPa

Min(%)

Yield strength

Tensile Strength

Elongation

GB/T9711.1

L245

≥245

≥415

21

L290

≥290

≥415

21

L320

≥320

≥435

20

L360

≥360

≥460

19

L390

≥390

≥490

18

L415

≥415

≥520

17

L450

≥450

≥535

17

L485

≥485

≥570

17

 

Chemical Composition(%) of High Quality ERW Welded Steel Pipes

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: GB/9711.2

 

Mechanical Properties of High Quality ERW Welded Steel Pipes

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

 

Chemical Composition (%) of High Quality ERW Welded Steel Pipes

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 of High Quality ERW Welded Steel Pipes

Standard

Grade

MPa

MPa

Yield strength

Tensile Strength

ASTM A53M

A

205

330

B

240

415

 

Chemical Composition(%) of High Quality ERW Welded Steel Pipes

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

 High Quality ERW Welded Steel Pipes

 High Quality ERW Welded Steel Pipes

 

 

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Q:What is the difference between seamless steel pipe and welded pipe?
The main molding process is different. Ordinary steel pipes, such as tap water pipes, are usually welded by bending flat plates, and you can find a seam on it;
Q:25 of the steel pipe with 6 in charge of what is the difference?
Outer diameter representation of steel pipe:When the design is nominal diameter DN means diameter, should be nominal diameter DN and the corresponding product specifications table. Specification for unplasticized polyvinyl chloride pipes for building drainage, de (nominal outer diameter) * e (nominal wall thickness), (GB, 5836.1-92), polypropylene (PP) pipe for water supply, specifications by de * e (nominal outer diameter * wall thickness).
Q:How to distinguish seamless pipe and welded pipe?
If it is seamless pipe, the port can be seen inside and outside the pipe there is no welding meat exists, and even if the welding pipe welding processing, the pipe weld is very easy to observe.
Q:Can galvanized pipe be welded with seamless steel tube? What should I do to connect?
To look at the use of concrete after welding, if the stress is relatively large and thin galvanized pipe wall is recommended to not use welding, if the requirement is not high Po mouth welding should be welding depends on galvanized pipe material selection electrode generally no sealing material are 20
Q:Galvanized steel pipe DN100 and SC100
Zinc plating, hot dip galvanizing and cold galvanizing, to see the design instructions and design requirements, which will explain
Q:Are steel tubes and round steel in weight or length when purchased?
It's priced by weight. The cutting process should size to determine the length (otherwise - please specify the weight of the material), the material ration to calculate weight for cost accounting as.
Q:What does seamless steel tube mean? What are the main uses? What are the classifications?
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 withsteel and roundsteelinsolid, flexural torsional strength in the same time, the weight is light, is a kind of economic section steel, widely used in the manufacture of structural parts and mechanical parts, such as the oil pipe, automobile transmission shaft, the bicycle frame and steel construction with scaffold with steel pipe manufacturing ring parts can be improved the utilization rate of materials, simplify the manufacturing process, material saving and working hours, has been widely used to manufacture steel tube.
Q:How can seamless steel tubes be produced?
After extrusion to remove pipe sizing. The sizing machine passes through the cone bit and rotates into the steel embryo at high speed to form a steel tube. The inner diameter of the steel pipe is determined by the outside diameter and length of the sizing machine. When the steel tube is fixed, it enters the cooling tower and is cooled by spraying water. The steel tube is straightened after cooling. After straightening, the steel pipe is sent to the metal flaw detector (or water pressure experiment) by the conveyor belt for internal inspection. If there are cracks in the steel pipe, bubbles and other problems will be detected. Steel pipe quality inspection, but also through strict manual selection. After the quality inspection of the steel pipe, spray with the paint on the number, specifications, production batch number and so on. The crane is hoisted into the warehouse.
Q:How much is the tube?
The first prerequisite we need to determine is: what are the specifications of the steel pipe mentioned? Such as the commonly used steel pipe specifications: diameter 108*4.5, diameter 219*6, diameter 377*10, diameter and wall thickness of steel pipe with different specifications, different weight, so the steel price per meter is different.
Q:Is hot dipped plastic pipe steel?
The hot dipped plastic steel pipe is a steel pipe, and it is made of special antiseptic treated composite steel pipe.
As the largest strip-steel production base in china, we can get the advantage of having the lowest goods transport cost. Our company covers an area of 80000 square meter, and transportation here is very convenient. We are mainly engaged in the manufacture and management of high frequency straight seam welded pipe. We now have 11 welded pipe production lines, with daily output of2800-3000 tons of welded pipe ranging from DN15--DN200 (1/2--8 inch),and the designed annual production capacity of 800,000 tons.

1. Manufacturer Overview

Location Hebei,China
Year Established 2005
Annual Output Value Above 100 Million RMB
Main Markets Main land;Middle East;Southeast Asia
Company Certifications ISO9001

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Tianjin;Qingdao
Export Percentage 41% - 50%
No.of Employees in Trade Department
Language Spoken: English;Chinese;Korean
b)Factory Information  
Factory Size: 120mu
No. of Production Lines 11
Contract Manufacturing OEM Service Offered;Design Service Offered
Product Price Range High Average