SSAW Steel Pipe

Description

SSAW pipe full name is Spiral Submerged arc welding pipe. The pipe is formed by spiral submerged arc welding technology which is called SSAW pipe. Generally speaking, when it comes to the same standard and steel grade, the price of SSAW pipe is cheaper or lower than ERW pipe and LSAW pipe. The strength is higher than the straight seam welded pipe.

Standard & Class

ClassficationStandardMain Products
Steel Pipe for Fluid ServiceGB/T 14291Welded pipe for mine fluid sevice
GB/T 3091Welded pipe for low pressure fluid service
SY/T 5037Spirally submerged arc welded steel pipe for pipelines for low pressure fluid service
ASTM A53Black and hot-hipped galvanized welded and seamless steel pipe
BS EN10217-2Welded steel tybes for pressure purposes - delivery technical conditions - part2: Electric welded non- alloy and alloy steel tubes with specified elevated temperature properties
BS EN10217-5Welded steel tybes for pressure purposes - delivery technical conditions - part5: submerged arc welded non-alloy and alloy steel tubes with specified elevated temperature properties
Steel Pipe for Ordinary StructureGB/T 13793Longitudinally electric resistance welded steel pipe
SY/T 5040Spirally submerged arc welded steel pipe piles
ASTM A252Welded and seamless steel pipe piles
BS EN10219-1Cold formed welded structural hollow sections of non-alloy and fine grain steels - part1: Technical delivert conditions
BS EN10219-2Cold formed welded structural hollow sections of non-alloy and fine grain steels - part2: tolerances dimmsions and sectional properties
Line PipeGB/T 9711.1Steel pipe for pipeline transportation system of petroleum and natural gas industries(Class A steel pipe)
GB/T 9711.2Steel pipe for pipeline transportation system of petroleum and natural gas industries(Class B steel pipe)
PSL1/2Line pipe
CasingAPI 5CT/ ISO 11960 PSL1Steel pipe for use as casing or tubing for wells of petroleum and natural gas industries


Chemical Analysis and Mechanical Properties

StandardGradeChemical Composition(max)%Mechanical Properties(min)
CSiMnPSTensile Strength(Mpa)Yield Strength(Mpa)
API 5CTh40----0.030417417
J55----0.030517517
K55----0.030655655
API 5L PSL1A0.22-0.900.0300.030335335
B0.26-1.200.0300.030415415
X420.26-1.300.0300.030415415
X460.26-1.400.0300.030435435
X520.26-1.400.0300.030460460
X560.26-1.400.0300.030490490
X600.26-1.400.0300.030520520
X650.26-1.450.0300.030535535
X700.26-1.650.0300.030570570
API 5L PSL2B0.220.451.200.0250.015415415
X420.220.451.300.0250.015415415
X460.220.451.400.0250.015435435
X520.220.451.400.0250.015460460
X560.220.451.400.0250.015490490
X600.120.451.600.0250.015520520
X650.120.451.600.0250.015535535
X700.120.451.700.0250.015570570
X800.120.451.850.0250.015625625
GB/T 9711.1L210--0.900.0300.030335335
L245--1.150.0300.030415415
L290--1.250.0300.030415415
L320--1.250.0300.030435435
L360--1.250.0300.030460460
L390--1.350.0300.030490490
L4150.26-1.350.0300.030520520
L4500.26-1.400.0300.030535535
L4850.23-1.600.0300.030570570
GB/T3091/ SY/T503Q1950.120.300.500.0350.040315315
Q215B0.150.351.200.0450.045335335
Q235B0.200.351.400.0450.045370370
Q345B0.200.501.700.0350.035470470
ASTM A53A0.250.100.950.0500.045330330
B0.300.101.200.0500.045415415
ASTM A2521---0.050-345345
2---0.050-414414
3---0.050-455455
EN10217-1P195TR10.130.350.700.0250.020320320
P195TR20.130.350.700.0250.020320320
P235TR10.160.351.200.0250.020360360
P235TR20.160.351.200.0250.020360360
P265TR10.200.401.400.0250.020410410
P265TR20.200.401.400.0250.020410410
EN10217-2P195GH0.130.350.700.0250.020320320
P235GH0.160.351.200.0250.020360360
P265GH0.200.401.400.0250.020410410
EN10217-5P235GH0.160.351.200.0250.020360360
P265GH0.200.401.400.0250.020410410
EN10219-1S235JRH0.17-1.400.0400.040360360
S275JOH0.20-1.500.0350.035410410
S275J2H0.20-1.500.0300.030410410
S355JOH0.220.551.600.0350.035470470
S355J2H0.220.551.600.0300.030470470
S355K2H0.220.551.600.0300.030470470


Tolerance of Outside Diameter and Wall Thickness

StandardTolerance of Pipe BodyTolerance of Pipe EndTolerance of Wall Thickness
Out DiameterToleranceOut DiameterTolerance
GB/T3091OD≤48.3mm≤±0.5OD≤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/T9711.1OD≤48.3mm-0.79~+0.41--OD≤73-12.5%~+20%
60.3<od≤457mm≤±0.75%OD≤273.1mm-0.4~+1.5988.9≤OD≤457-12.5%~+15%
508<od≤941mm≤±1.0%OD≥323.9-0.79~+2.38OD≥508-10.0%~+17.5%
OD>941mm≤±1.0%----
GB/T9711.260<od≤610mm±0.75%D~±3mm60<od≤610mm±0.5%D~±1.6mm4mm<wt<25mm±12.5%T~±15.0%T
610<od≤1430mm±0.5%D~±4mm610<od≤1430mm±0.5%D~±1.6mmWT≥25mm-3.00mm~+3.75mm
OD>1430mm-OD>1430mm---10.0%~+17.5%
SY/T5037OD<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/PSL2OD<60.3-0.8mm~+0.4mmOD≤168.3-0.4mm~+1.6mmWT≤5.0≤±0.5
60.3≤OD≤168.3≤±0.75%168.3<od≤610≤±1.6mm5.0<wt<15.0≤±0.1T
168.3<od≤610≤±0.75%610<od≤1422≤±1.6mmT≥15.0≤±1.5
610<od≤1422≤±4.0mmOD>1422---
OD>1422-----
API 5CTOD<114.3≤±0.79mmOD<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.


Specification


Out Diameter

Wall Thickness (mm)

mm

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

219.1....















273.....














323.9

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325

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355.6

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377

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406.4

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426

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457

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478

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508

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529

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630

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711

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720

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813


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820


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920



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1020



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1220



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1420




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1620





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1820






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2020







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2220








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2500








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2540









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3500










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