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Pipe Type: Longitudinal Welded Pipe, Longitudinal Submerged Arc Welded Pipe
Application: Used for Fluids Transmission, Structural Support in Industrial Construction
Specification: OD: 406mm ~ 1422 mm
WT: 6.4mm ~ 44.5mm
LENGTH: 5mtr ~ 12mtr
Standard & Grade: ASTM A53 Grade A/B/C
Ends: Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends
Surface: Bare, Lightly Oiled, Black/Red/Yellow Painting, Zinc/Anti-corrosive Coating
Packing: Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped
LSAW Steel Pipe Manufacturing Process
Specification of LSAW Steel Pipe
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Out Diameter |
Wall Thickness(mm) |
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Inch |
mm |
6.4 |
7.1 |
7.9 |
9.53 |
12.7 |
14.3 |
15.9 |
19.1 |
22.2 |
25.4 |
28.6 |
31.8 |
34.9 |
38.1 |
41.3 |
44.5 |
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16 |
406.4 |
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18 |
457 |
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20 |
508 |
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22 |
559 |
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24 |
610 |
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26 |
660 |
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28 |
711 |
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30 |
762 |
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32 |
813 |
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34 |
864 |
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36 |
914 |
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38 |
965 |
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40 |
1016 |
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42 |
1067 |
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44 |
1118 |
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46 |
1168 |
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48 |
1219 |
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52 |
1321 |
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56 |
1422 |
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60 |
1524 |
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64 |
1626 |
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Types |
Standard |
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SY/T5040-2000 |
SY/T5037-2000 |
SY/T9711.1-1977 |
ASTM A252 |
AWWA C200-97 |
API 5L PSL1 |
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Tube end OD deviation |
±0.5%D |
±0.5%D |
-0.79mm～+2.38mm |
<±0.1%T |
<±0.1%T |
±1.6mm |
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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 |
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D>508mm, ±10.0%T |
T≥15.0mm, ±1.5mm |
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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
Surface of LSAW Steel Pipe
Bare, Lightly Oiled, Black/Red/Yellow Painting, Zinc/Anti-corrosive Coating
Packing of LSAW Steel Pipe
Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped
Product Advantages of LSAW Steel Pipe
(1) Without the unwind process, the base material indentation, scratch less.
(2) The wrong side, slotted, and other easy-to-diameter perimeter control, excellent welding quality.
(3) The elimination of flaring basically does not exist residual stress after stress.
(4) Because it is a straight line weld, the weld is short, little risk of defects.
(5) After expanding, pipe geometry accuracy is improved greatly facilitate the on-site welding.
(6) For a straight seam, less impact on the quality of anti-corrosion coating materials.