• SSAW Steel Pipe

SSAW Steel Pipe
Spiral welded pipe: The low carbon carbon structural steel or low alloy structural steel strip is rolled into a tube blank according to a certain helix Angle (called forming Angle), and then the pipe seam is welded together, which can produce large diameter steel pipe with a narrower strip. The specification is expressed by the outer diameter * wall thickness, and the welded pipe should ensure that the water pressure test, the tensile strength of the weld and the cold bending performance should meet the requirements.
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SPECIFICATION
MATERIAL
PRODUCT DISPLAY

Product Name:SSAW (Spiral Submerged-arc Welded) Steel Pipe
Usage:Used for low-pressure liquid delivery, such as water, gas, and oil.
Standard:API 5L PSL1/ PSL2 , ASTM A252, EN10219, AWWA C200, ASTM A53, BS, JIS, etc...
ASTM A 53:Gr. A, Gr B, Gr C, Gr.D
API 5L:A, B, X42, X46, X52, X56, X60, X65 X70
GB/T9711:L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555
ASTM A252:Gr.1 Gr.2 Gr.3
EN 10219:S235JR, S275JR, S355JR, S355JOH, S355J2, S420...
Outer Diamter:219.1mm - 2032.0mm (8" - 80")
Wall Thickness:2-25.4mm SCH10 SCH20 SCH30 STD SCH40 SCH60 XS SCH80 SCH140 SCH160 XXS
Length:1-12m as customer requirement

Diameter(mm)Thickness of Wall(mm)Length(m)
2195.0-8.06-12
2455.0-12.06-12
2735.0-12.06-12
3255.0-12.06-12
3775.0-12.06-12
4265.0-12.06-12
4785.0-12.06-12
5296.0-16.06-12
6306.0-16.06-12
7206.0-16.06-12
8206.0-16.06-12
9206.0-16.06-12
10206.0-16.06-12
11208.0-25.06-12
12208.0-25.06-12
13208.0-25.06-12
14208.0-25.06-12
15208.0-25.06-12
16208.0-25.06-12
17208.0-25.o6-12
18208.0-25.06-12
19208.0-25.06-12
20208.0-25.06-12
20328.0-25.06-12

Chemical Analysis and Mechanical Properties：

Standard
Grade
Chemical Composition(max)%
Mechanical Properties(min)
C
Si
Mn
P
S
Tensile Strength(Mpa)
Yield Strength(Mpa)
API 5CT
h40
----0.030
417
417
J55
----0.030
517
517
K55
----0.030
655
655
API 5L PSL1
A
0.22
-0.90
0.030
0.030
335
335
B
0.26
-1.20
0.030
0.030
415
415
X42
0.26
-1.30
0.030
0.030
415
415
X46
0.26
-1.40
0.030
0.030
435
435
X52
0.26
-1.40
0.030
0.030
460
460
X56
0.26
-1.40
0.030
0.030
490
490
X60
0.26
-1.40
0.030
0.030
520
520
X65
0.26
-1.45
0.030
0.030
535
535
X70
0.26
-1.65
0.030
0.030
570
570
API 5L PSL2
B
0.22
0.45
1.20
0.025
0.015
415
415
X42
0.22
0.45
1.30
0.025
0.015
415
415
X46
0.22
0.45
1.40
0.025
0.015
435
435
X52
0.22
0.45
1.40
0.025
0.015
460
460
X56
0.22
0.45
1.40
0.025
0.015
490
490
X60
0.12
0.45
1.60
0.025
0.015
520
520
X65
0.12
0.45
1.60
0.025
0.015
535
535
X70
0.12
0.45
1.70
0.025
0.015
570
570
X80
0.12
0.45
1.85
0.025
0.015
625
625
GB/T 9711.1
L210
--0.90
0.030
0.030
335
335
L245
--1.15
0.030
0.030
415
415
L290
--1.25
0.030
0.030
415
415
L320
--1.25
0.030
0.030
435
435
L360
--1.25
0.030
0.030
460
460
L390
--1.35
0.030
0.030
490
490
L415
0.26
-1.35
0.030
0.030
520
520
L450
0.26
-1.40
0.030
0.030
535
535
L485
0.23
-1.60
0.030
0.030
570
570
GB/T3091/ SY/T503
Q195
0.12
0.30
0.50
0.035
0.040
315
315
Q215B
0.15
0.35
1.20
0.045
0.045
335
335
Q235B
0.20
0.35
1.40
0.045
0.045
370
370
Q345B
0.20
0.50
1.70
0.035
0.035
470
470
ASTM A53
A0.25
0.10
0.95
0.050
0.045
330
330
B0.30
0.10
1.20
0.050
0.045
415
415
ASTM A252
1---0.050
-345
345
2---0.050
-414
414
3---0.050
-455
455
EN10217-1
P195TR1
0.13
0.35
0.70
0.025
0.020
320
320
P195TR2
0.13
0.35
0.70
0.025
0.020
320
320
P235TR1
0.16
0.35
1.20
0.025
0.020
360
360
P235TR2
0.16
0.35
1.20
0.025
0.020
360
360
P265TR1
0.20
0.40
1.40
0.025
0.020
410
410
P265TR2
0.20
0.40
1.40
0.025
0.020
410
410
EN10217-2
P195GH
0.13
0.35
0.70
0.025
0.020
320
320
P235GH
0.16
0.35
1.20
0.025
0.020
360
360
P265GH
0.20
0.40
1.40
0.025
0.020
410
410
EN10217-5
P235GH
0.16
0.35
1.20
0.025
0.020
360
360
P265GH
0.20
0.40
1.40
0.025
0.020
410
410
EN10219-1
S235JRH
0.17
-1.40
0.040
0.040
360
360
S275JOH
0.20
-1.50
0.035
0.035
410
410
S275J2H
0.20
-1.50
0.030
0.030
410
410
S355JOH
0.22
0.55
1.60
0.035
0.035
470
470
S355J2H
0.22
0.55
1.60
0.030
0.030
470
470
S355K2H
0.22
0.55
1.60
0.030
0.030
470
470


Tolerance of Outside Diameter and Wall Thickness：

Standard
Tolerance of Pipe Body
Tolerance of Pipe End
Tolerance of Wall Thickness
Out Diameter
Tolerance
Out Diameter
Tolerance
GB/T3091
OD≤48.3mm
≤±0.5
OD≤48.3mm
-≤±10%
48.3<od≤273.1mm
≤±1.0%
48.3<od≤273.1mm< span="" style="padding: 0px; margin: 0px;">
-
273.1<od≤508mm
≤±0.75%
273.1<od≤508mm< span="" style="padding: 0px; margin: 0px;">
-0.8～+2.4
OD>508mm
≤±1.0%
OD>508mm
-0.8～+3.2
GB/T9711.1
OD≤48.3mm
-0.79～+0.41
--OD≤73
-12.5%～+20%
60.3<od≤457mm
≤±0.75%
OD≤273.1mm
-0.4～+1.59
88.9≤OD≤457
-12.5%～+15%
508<od≤941mm
≤±1.0%
OD≥323.9
-0.79～+2.38
OD≥508
-10.0%～+17.5%
OD>941mm
≤±1.0%
---
-
GB/T9711.2
60<od≤610mm
±0.75%D～±3mm
60<od≤610mm
±0.5%D～±1.6mm
4mm<wt<25mm
±12.5%T～±15.0%T
610<od≤1430mm
±0.5%D～±4mm
610<od≤1430mm
±0.5%D～±1.6mm
WT≥25mm
-3.00mm～+3.75mm
OD>1430mm
-OD>1430mm
---10.0%～+17.5%
SY/T5037
OD<508mm
≤±0.75%
OD<508mm
≤±0.75%
OD<508mm
≤±12.5%
OD≥508mm
≤±1.00%
OD≥508mm
≤±0.50%
OD≥508mm
≤±10.0%
API 5L PSL1/PSL2
OD<60.3
-0.8mm～+0.4mm
OD≤168.3
-0.4mm～+1.6mm
WT≤5.0
≤±0.5
60.3≤OD≤168.3
≤±0.75%
168.3<od≤610
≤±1.6mm
5.0<wt<15.0
≤±0.1T
168.3<od≤610
≤±0.75%
610<od≤1422
≤±1.6mm
T≥15.0
≤±1.5
610<od≤1422
≤±4.0mm
OD>1422
-
--
OD>1422
-
--
--
API 5CT
OD<114.3
≤±0.79mm
OD<114.3
≤±0.79mm
≤-12.5%
OD≥114.3
-0.5%～1.0%
OD≥114.3
-0.5%～1.0%
≤-12.5%
ASTM A53
≤±1.0%
≤±1.0%
≤-12.5%
ASTM A252
≤±1.0%
≤±1.0%
≤-12.5%

SSAW steel pipe is the raw material of strip coil, often temperature extrusion molding, automatic double-wire double submerged arc welding process made of spiral seam pipe. Spiral steel pipe will strip into the pipe unit, the multi-roll rolling, strip rolled up, forming a circular gap opening gap, adjust the squeeze roll reduction, the weld gap control in the 1 ~ 3mm, and make both ends of the weld flush.

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