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LSAW Carbon Steel Pipe

Pipe Type:LSAW Steel Pipe,Longitudinally Submerged Arc Welding Pipe ,DSAW Steel Pipe,Welded Steel Pipe

Specification: Outside Diameter:355.6mm-2320mm 

                            Wall Thickness:5.0mm-60mm 

                            LENGTH:5.8m/6m/11.8m/12m/18m/32m 

Standard & Grade: ASTM A53: Gr.A, Gr.B;API 5L:Gr.A,Gr.B,X42,X46, X52,X56,X60,X65 PSL1 and PSL2; ASTM A572 Gr.50;ASTM A252 ;  API 5CT, ASTM 53, EN10217, DIN 2458. IS 3589, GB/T3091, GB/T9711,etc

End: Square Ends/Plain Ends (straight cut, saw cut, torch cut),Beveled/Threaded Ends 

Steel Grade: API 5L: GR B, X42, X46, X56, X60, X65, X70 ASTM A53: GR A, GR B, GR C

Surface: Black Painting/Oil Painting/Anti-Rust oil/Anti-Corrosive Coating 

Process: LSAW – UO(UOE)、RB(RBE)、JCO(JCOE,COE) DSAW -Double Submerged arc welded

Usage: Used for low pressure liquid delivery, such as water, gas, and oil.

Introduction

Pipe Type:LSAW Steel Pipe,Longitudinally Submerged Arc Welding Pipe ,DSAW Steel Pipe,Welded Steel Pipe

Specification: Outside Diameter:355.6mm-2320mm 

                            Wall Thickness:5.0mm-60mm 

                            LENGTH:5.8m/6m/11.8m/12m/18m/32m 

Standard & Grade: ASTM A53: Gr.A, Gr.B;API 5L:Gr.A,Gr.B,X42,X46, X52,X56,X60,X65 PSL1 and PSL2; ASTM A572 Gr.50;ASTM A252 ;  API 5CT, ASTM 53, EN10217, DIN 2458. IS 3589, GB/T3091, GB/T9711,etc

End: Square Ends/Plain Ends (straight cut, saw cut, torch cut),Beveled/Threaded Ends 

Steel Grade: API 5L: GR B, X42, X46, X56, X60, X65, X70 ASTM A53: GR A, GR B, GR C

Surface: Black Painting/Oil Painting/Anti-Rust oil/Anti-Corrosive Coating 

Process: LSAW – UO(UOE)、RB(RBE)、JCO(JCOE,COE) DSAW -Double Submerged arc welded

Usage: Used for low pressure liquid delivery, such as water, gas, and oil.

The UOE mill features the most advanced technology and process, achieves high production efficiency, stable product quality and is equipped with complete inspection equipments. UOE mill adopts U & O forming, the formed pipes are welded inside through five internal welding stations with three wires, and welded outside through four external welding stations with three wires. In accordance with different requirements of the customers, the welded pipe can be expanded either by mechanical or hydrostatic expander to improve dimensional accuracy, and eliminate residual stress. 

JCOE LSAW steel pipe:

Specifications:

Outside Diameter:Φ406mm- 1626mm (16" - 64" )

Wall Thickness:6.0- 75mm (1/4" - 3" )

Quality Standards:API、DNV、ISO、DEP、EN、ASTM、DIN、BS、JIS、GB、CSA

Length:3-12.5m ( 10'- 41' )

Grades:API 5L A-X100, GB/T9711 L190-L690 

This is large diameter longitudinal submerged arc welded (SAWL) pipe production line in China. The mill adopts progressive bending process, featuring evenly distributed forming stress, high uniformity of dimension, infinite sizes variation&wide poduct range, and high flexibility, etc. 

Specification

Standard

ASTM A53

Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

API 5L

Specification for Line Pipe(Two levels PSL 1 and PSL 2 of seamless and welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries.)

A252

Standard Specification for Welded and Seamless Steel Pipe Piles

A500

Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes

A139

Standard Specification for Electric-Fusion (Arc)-Welded Steel Pipe (NPS 4 and Over)

A672

Specification for Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperatures

A691

Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures

 

Specification

Outside Diameter(O.D.)

Wall Thickness (W.T.)

Length(m)

Inch

mm

Min.Yield Strength(Mpa)

Inch

mm

GR.B

X42

X52

X60

X65

X70

X80

16

406

6.0-14.0

6.0-13.0

6.0-12.0

6.0-11.0

6.0-10.5

6.0-10.0

6.0-9.0

6.0-32

18

457

6.0-15.0

6.0-14.0

6.0-13.0

6.0-12.0

6.0-11.5

6.0-11.0

6.0-10.0

6.0-32

20

508

6.0-16.0

6.0-15.0

6.0-14.0

6.0-13.0

6.0-12.5

6.0-12.0

6.0-11.0

6.0-32

22

559

6.0-17.0

6.0-16.0

6.0-15.0

6.0-14.0

6.0-13.5

6.0-13.0

6.0-12.0

6.0-32

24

610

6.0-18.0

6.0-17.0

6.0-16.0

6.0-15.0

6.0-14.5

6.0-14.0

6.0-13.0

6.0-32

26

660

6.0-19.0

6.0-18.0

6.0-17.0

6.0-16.0

6.0-15.0

6.0-15.0

6.0-14.0

6.0-32

28

711

6.0-20.0

6.0-19.0

6.0-18.0

6.0-17.0

6.0-16.5

6.0-16.0

6.0-15.0

6.0-32

30

762

7.0-21.0

7.0-20.0

7.0-19.0

7.0-18.0

7.0-17.5

7.0-17.0

7.0-16.0

6.0-32

32

813

7.0-22.0

7.0-21.0

7.0-20.0

7.0-19.0

7.0-18.5

7.0-18.0

7.0-17.0

6.0-32

34

864

7.0-23.0

7.0-22.0

7.0-21.0

7.0-20.0

7.0-19.5

7.0-19.0

7.0-18.0

6.0-32

36

914

8.0-24.0

8.0-23.0

8.0-22.0

8.0-21.0

8.0-20.5

8.0-20.0

8.0-19.0

6.0-32

38

965

8.0-25.0

8.0-24.0

8.0-23.0

8.0-22.0

8.0-21.5

8.0-21.0

8.0-20.0

6.0-32

40

1016

8.0-26.0

8.0-25.0

8.0-24.0

8.0-23.0

8.0-22.5

8.0-22.0

8.0-21.0

6.0-32

42

1067

8.0-26.0

8.0-25.0

8.0-24.0

8.0-23.0

8.0-22.5

8.0-22.0

8.0-21.0

6.0-32

44

1118

9.0-27.0

9.0-26.0

9.0-24.5

9.0-23.5

9.0-22.8

9.0-22.0

9.0-21.0

6.0-32

46

1168

9.0-27.0

9.0-26.0

9.0-24.0

9.0-23.5

9.0-22.8

9.0-22.0

9.0-21.0

6.0-32

48

1219

9.0-28.0

9.0-27.0

9.0-25.4

9.0-24.0

9.0-23.5

9.0-23.0

9.0-22.0

6.0-32

52

1321

9.0-28.0

9.0-27.0

9.0-25.4

9.0-24.2

9.0-23.5

9.0-23.0

9.0-22.0

6.0-32

56

1422

10.0-29.0

10.0-28.0

10.0-26.0

10.0-24.5

10.0-23.8

10.0-23.0

10.0-22.0

6.0-32

60

1524

10.0-29.0

10.0-28.0

10.0-26.0

10.0-24.5

10.0-23.8

10.0-23.0

10.0-22.0

6.0-32

64

1626

10.0-30.0

10.0-29.0

10.0-27.0

10.0-25.4

10.0-24.8

10.0-24.0

10.0-23.0

6.0-32

68

1727

10.0-30.0

10.0-29.0

10.0-27.0

10.0-25.4

10.0-24.8

10.0-24.0

10.0-23.0

6.0-32

72

1829

10.0-30.0

10.0-29.0

10.0-27.0

10.0-25.4

10.0-24.8

10.0-24.0

10.0-23.0

6.0-32


Tolerance of Outside Diameter and Wall Thickness

Types

Standard

SY/T5040-2000

SY/T5037-2000

SY/T9711.1-1977

ASTM A252

AWWA C200-97

API 5L PSL1

Tube end OD deviation

±0.5%D

±0.5%D

-0.79mm~+2.38mm

<±0.1%T

<±0.1%T

±1.6mm

Wall thickness

±10.0%T

D<508mm, ±12.5%T

-8%T~+19.5%T

<-12.5%T

-8%T~+19.5%T

5.0mm<t<15.0mm, ±0.11<="" p="" style="padding: 0px; margin: 0px;"></t<15.0mm,>

D>508mm, ±10.0%T

T≥15.0mm, ±1.5mm

Chemical Composition and Mechanical Properties

Standard Grade Chemical Composition(max)% Mechanical Properties(min)
C Mn Si S P Yield Strength(Mpa) Tensile Strength(Mpa)
GB/T700-2006 A 0.22 1.4 0.35 0.050 0.045 235 370
B 0.2 1.4 0.35 0.045 0.045 235 370
C 0.17 1.4 0.35 0.040 0.040 235 370
D 0.17 1.4 0.35 0.035 0.035 235 370
GB/T1591-2009 A 0.2 1.7 0.5 0.035 0.035 345 470
B 0.2 1.7 0.5 0.030 0.030 345 470
C 0.2 1.7 0.5 0.030 0.030 345 470
BS En10025 S235JR 0.17 1.4 - 0.035 0.035 235 360
S275JR 0.21 1.5 - 0.035 0.035 275 410
S355JR 0.24 1.6 - 0.035 0.035 355 470
DIN 17100 ST37-2 0.2 - - 0.050 0.050 225 340
ST44-2 0.21 - - 0.050 0.050 265 410
ST52-3 0.2 1.6 0.55 0.040 0.040 345 490
JIS G3101 SS400 - - - 0.050 0.050 235 400
SS490 - - - 0.050 0.050 275 490
API 5L PSL1 A 0.22 0.9 - 0.03 0.03 210 335
B 0.26 1.2 - 0.03 0.03 245 415
X42 0.26 1.3 - 0.03 0.03 290 415
X46 0.26 1.4 - 0.03 0.03 320 435
X52 0.26 1.4 - 0.03 0.03 360 460
X56 0.26 1.1 - 0.03 0.03 390 490
X60 0.26 1.4 - 0.03 0.03 415 520
X65 0.26 1.45 - 0.03 0.03 450 535
X70 0.26 1.65 - 0.03 0.03 585 570

 

Production Process

Chemical Component Analysis
-Mechanical Properties – Elongation, Yield Strength, Ultimate Tensile Strength
-Technical Properties – DWT Test, Impact Test, Blow Test, Flattening Test
-X-ray Test
-Exterior Size Inspection
-Hydrostatic Test
-UT Test

Our Factory

Packaging pictures

 

If you have any inquiries and questions, please contact CONTINENTAL STEEL CO.,LTD. at any time. Thanks in advance. Welcome!

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