API ERW Line Pipes

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50MT m.t.
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Product Description:

 ERW Welded Steel Pipes

 

Application of API  ERW Line 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 of  API  ERW Line Pipes:

bundles with anti-rust painting and with plastic caps

 

Standard of API  ERW Line Pipes:

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

 

Steel Grade of API ERW Line 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 pipes of API ERW Line 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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

                                                                                                                                                                                                                                        

Machinical Properties

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(%)

 

 

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

 

 

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 (%)

 

 

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

 

 

Raw Materials of  ERW Pipes

 

API ERW Line Pipes Raw Materials

 

Unfold Machine

 

API ERW Line Pipes unfold

 

Production Line

ERW Steel Pipe Production Line

ERW UT Offline Weld Flaw Detection Machine

 

API ERW Line Pipes

 

 

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Q:What is the outer diameter and wall thickness of the welded steel pipe of national standard DN250?
DN (nominal diameter) 250 is generally the industry said 273, welded steel pipe (spiral steel pipe) thickness is generally between 6-8mm, more common.
Q:What's the material of Q325 steel pipe?
Q235 refers to the material yield stress of 235MPa carbon steel, because of its low price, good machining and welding performance, it is generally used for welding structural parts. Of course, the unimportant parts can be used for it.
Q:How is the steel pipe dance installed at home?
Portable pipe with instructions and CD can be installed, portable steel pipe of a new patent, convenient installation, no restriction site, no drilling, readily removable, adjustable height, stainless steel, solid.
Q:Is there a weld on the outer wall of seamless steel tube?
As you have said this, you have to fake goods is seamless, commonly known as to seamless steel pipe, seamless steel pipe is welded pipe weld reinforcement, and then go inside and outside the weld is worn away, and then burn side is that you say is that, after you can see the wall friction of a weld, is not too obvious. Like a polished, but no wall bulge, can not see the seam,
Q:How to make the internal tooth of the steel pipe?
Cylindrical thread can be used, if the tube is too long, you may consider a short tube with thread, and then welded to the long tube.Taper thread is more difficult to use than ordinary vehicle, and the tap is generally considered. The tap can be clamped on the tailstock.
Q:What does "DN25 PN16" mean?
PN said the pressure is, PN16 is the pipe can withstand 16MPa general meaning, namely, an 16 kg.
Q:What is ND steel pipe?
ND steel also has the ability to resist chloride ion corrosion. ND steel pipe, the main reference indicators (70 degrees Celsius, 50%H2SO4 solution immersion 24 hours), and carbon steel, Japan imported similar steel, stainless steel corrosion resistance compared to higher than these steel grades. Products by domestic refineries and manufacturing units after the use of widely acclaimed, and achieved good results.
Q:The plastic pipe and steel pipe difference
In the plastic coated galvanized steel pipe inside the plastic coated manufacturing method. The thickness of the internal plastic is thin, which is equal to a plastic skin.
Q:What is the process of spiral steel tube production?
X ray flaw detection: 100% X ray industrial television inspection of internal and external weld seams, and image processing system is adopted to ensure the sensitivity of flaw detection.8. press test: the steel pipe is tested by root test on the water pressure test machine to ensure the test pressure of the steel pipe to meet the standard requirement.9. chamfering flat head: the qualified steel pipe is processed at the end of the pipe to achieve the required size of the end of the pipe10. final inspection: ultrasonic and X ray inspection, and magnetic particle inspection at the end of pipe to check for welding problems and pipe end defects.11., marking: qualified steel pipe for oil, in order to prevent corrosion, and according to user requirements for marking.
Q:What type of steel pipe for security windows?
25 parties, 70 parties in general! Good point of about 90; 25/38 general 90, a good point of about 120! The model is usually 202. If 304 is used, it is usually multiplied by 2! Plastic steel window material is hard plastic! Inside a single glass lined steel prices have 75/90/120/150/ different brand price this is the price of the window! Aluminum alloy is generally 100/120/150/175/190 area, different prices different
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