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Spiral Welded Steel Pipe – SSAW

Spiral Welded Steel Pipe – SSAW

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SSAW Steel Pipe(Spiral Submerged Arc Pipe)

Sizes:

Out diameter:219mm-3620mm

Wall thickness: 5mm-25.4mm

Length: 3m-12m

Standard and Classfication of SSAW Steel Pipe

ClassficationStandardMain Products
Line PipeAPI 5L PSL1/2Line pipe
CasingAPI 5CT/    ISO 11960 PSL1Steel pipe for use as casing or tubing for wells of petroleum and natural gas industries
Steel Pipe for Fluid ServiceASTM 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 StructureASTM 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

Chemical Analysis and Mechanical Properties of SSAW Steel Pipe

StandardGradeChemical Composition(max)%Mechanical Properties(min)
CSiMnPSTensile Strength(Mpa)Yield Strength(Mpa)
API 5CTh400.030417417
J550.030517517
K550.300655655
API 5L PSL1A0.220.900.0300.030335335
B0.261.200.0300.030415415
X420.261.300.0300.030415415
X460.261.400.0300.030435435
X520.261.400.0300.030460460
X560.261.400.0300.030490490
X600.261.400.0300.030520520
X650.261.450.0300.030535535
X700.261.650.0300.030570570
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
ASTM A53A0.250.100.950.0500.045330330
B0.300.101.200.0500.045415415
ASTM A25210.050345345
20.050414414
30.050455455
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
EN10219-1S235JRH0.171.400.0400.040360360
S275JOH0.201.500.0350.035410410
S275J2H0.201.500.0300.030410410
S355JOH0.220.551.600.0350.035470470
S355J2H0.220.551.600.0300.030470470
S355K2H0.220.551.600.0300.030470470

Machine of manufacturing ssaw steel pipe

Edge planing machine, edge milling machine, pipe cutting machine,butt welding machine, pinching machine, hydraulic testing machine.

 

External Coating: 

TypeStandard
Single-Layer FBE CoatingSY/T 0315-2005, CAN/CSA Z245.20-2010,
DEP 31.40.30.32-Gen-2011, ISO 21809-2-2007, API RP 5L9-2001
Double-Layer FBE CoatingQ/CNPC 38-2002, CAN/CSA Z245.20-2010
2LPE/2LPP CoatingSY/T 0413-2002, GB/T 23257-2009, ISO 21809-1-2009
3LPE/3LPP CoatingSY/T 0413-2002, GB/T 23257-2009, DIN 30670-1991, CAN/CSA Z245.21-2010,
ISO 21809-1-2009, NF A49-711-1992, NF A49-710-1988
Insulation CoatingSY/T 0415-1996, CJ/T 114-2000, EN 253-1994

Internal Coating
Single-Layer FBE Coating
Standard: API RP 5L2-2002, DEP 31.40.30.35-Gen-2005

PE Coated SSAW Pipe

Type:PE Coated Pipe, 2PE Coated Pipe, 3PE Coated Pipe

Application: Used for for natural gas, petroleum, water & sewage, and pipe systems

Specification:OD: 219mm~2020mm

WT: 5mm~25mm

LENGTH: 4mtr, 6mtr, 12mtr, 18mtr, 21mtr

Coating Standard:DIN 30670, DIN 30671, DIN 30678, SY/T0413-2002 etc.

Pipe Type: Submerged Arc Welded (LSAW/SSAW), Electrci Resistance Welded

Surface:Two Layer Polyethylene Coating (2mm~4.5mm)

 

FBE Coated SSAW Pipe

Type: FBE (Fusion Bond Epoxy) Coated Pipe, Epoxy Coated Carbon Steel Pipe

Application:Used for natural gas, petroleum, water & sewage, and pipe systems

Specification: OD: 219mm~2020mm

WT: 5mm~25mm

LENGTH: 4mtr, 6mtr, 12mtr, 18mtr, 21mtr

Coating Standard: DIN 30670, DIN 30671, DIN 30678, SY/T0413-2002 etc.

Surface:One Layer / Double Layer FBE anti-corrosive coating powder (200um~800um)

 

Spiral Steel Pipe Manufacturing Process

SSAW Pipe (Spiral Submerged Arc-Welding Pipe), also called HSAW pipe, welding line shape like a helix. It is using the same welding technology of Submerged Arc-Welding with LSAW pipe. Differently SSAW pipe is spiral welded where the LSAW is longitudinally welded. Manufacturing process is rolling the steel strip, to make the rolling direction have an angle with the direction of the pipe center, forming and welding, so the welding seam is in a spiral line.


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