ASTM A252,AS1163 C350L0, API 5L X65,EN10208,EN10219 LSAW STEEL PIPE PILES
|Model No.︰||ASTM A252 GR.3
|Brand Name︰||API 5L X65 LSAW TUBULAR PILES, AS 1163 PIPE PILES
|Country of Origin︰||China
|Unit Price︰||US $ 815 / MT
|Minimum Order︰||100 MT
NOTES: THE CIRCUMFERRIENTIAL WELDED PIPE LENGTH CAN BE 100 METERS.
1.1 Line Pipes
API 5L PSL1/PSL 2 Line Pipe: Gr. B X42, X46, X52, X56, X60, X65, X70, X80/BM.X42M,X46M,X52M,X60M,X65M,X70,X80M
ISO 3183-1/2 Petroleum and Natural Gas Industries-Steel Pipe for Pipelines Transportation System-L240M,L290M,L320M,L360M,L390M,L415M,L450M,L485M,L555M,L690M
ISO 3183-3 Petroleum and Natural Gas Industries Steel Pipe for Pipelines Transportation System -L245NC / L245NCS,L290NC / L290NCS, L360NC / L360NCS, L290MC / L290MCS, L360MC / L360MCS, L415MC / L415MCS, L450MC / L450MCS, L485MC / L485MCS, L555MC
AS2885 Pipelines-Gas and liquid petroleum Part 1: Design and Construction
AS 1163 Structural Steel Hollow Section--C250,C250L0,C350,C350L0,C450,C450L0
ASM B31.11-2002 Slurry Transportation Piping Systems
BS 3601-1 Carbon steel pipes and tubes with specified room temperature properties for pressure purposes
BS 3602-2 Specification for steel pipes and tubes for pressure purposes: carbon and carbon manganese steel with specified elevated temperature properties. Part 2: Submerged arc welded tubes
BS 6323 Seamless and welded steel tubes for automobile mechanical and general engineering purposes. Part 1: General requirements. Part 7: Specific requirements for submerged arc welded steel tube
CSA Z245.1 Steel Pipe- Category I, II, III-241,290,359,386,414,448,483,550,620,690,825
DIN 2470-1 Steel gas pipelines for permissible service pressures up to 16 bar
DIN 2470-2 Steel gas pipelines for permissible service pressures exceeding 16 bar
EN 10208-1:2009, Steel pipes for pipelines for combustible fluids - Technical delivery conditions - Part 1: Pipes of requirement class A-L210GA,L235GA,L245GA,L290GA, L360GA
EN 10208-2:2009, Steel pipes for pipelines for combustible fluids – Technical delivery conditions – Part 2: Pipes of requirement class B-L245MB,L290MB,L320MB,L360MB,L390MB,L415MB,L450MB, L485MB,L555MB
EN 10208-3 Non alloy and alloy fine grain steel tubes
EN 10217-1/3 Welded steel tubes for pressure purposes
EN10217-5 Welded Steel Tubes for Pressure Purposes-Technical Delivery Conditions-Part 5: Submerged Arc Welded Non-Alloy and Allow Steel Tubes with Specified Elevated Temperature Properties
EN 12007-3:2000, Gas supply systems - Pipelines for maximum operating pressure up to and including 16 bar - Part 3: Specific functional recommendations for steel.
EN ISO 21329:2004, Petroleum and natural gas industries - Pipeline transportation systems - Testing procedures for mechanical connections (ISO 21329:2004).
EEMUA Publ 203:2004, Guide to the Application of ISO 3183 Parts 2 (1996) and 3 (1999) Petroleum and Natural Gas Industries - Steel Pipes for Pipelines - Technical Delivery Conditions.
NACE MR 0175/ISO 15156-2 Petroleum and Natural Gas Industries – Materials for Use in H2S Containing Environments in Oil and Gas Production. Part 2. Cracking resistant Carbon and Low Alloy Steels, and the Use of Cast Irons.
NACE TM 0177 Laboratory Testing of Metals for Resistance to Sulfide Stress Cracking in Hydrogen Sulfide (H2S) Environments
NACE TM 0284 Standard Test Method - Evaluation of Pipeline and Pressure Vessel Steels for Resistance to Hydrogen-Induced Cracking
DEP 188.8.131.52-Gen LINEPIPE FOR USE IN OIL AND GAS OPERATIONS UNDER NON-SOUR CONDITIONS(AMENDMENTS/SUPPLEMENTS TO API SPEC 5L)
DEP 184.108.40.206-Gen LINEPIPE FOR USE IN OIL AND GAS OPERATIONS UNDER SOUR CONDITIONS(AMENDMENTS/SUPPLEMENTS TO API SPEC 5L)
DEP 220.127.116.11-Gen Line pipe for non-critical service (amendments/supplements to ISO 3183-1)
DEP 18.104.22.168-Gen Linepipe for critical service (amendments/supplements to ISO 3183-3)
DEP 22.214.171.124-Gen Hydrostatic pressure testing of new pipelines
DEP 126.96.36.199-Gen Pipeline leak detection
DEP 188.8.131.52-Gen Pipeline Repairs (supplements to ANSI/ASME B31.4 and B31.8)
DEP 184.108.40.206-Gen Welding of pipelines and related facilities (amendments/supplements to ANSI/API STD 1104)
DEP 220.127.116.11-Gen Precommissioning of pipelines
DGS-9510-001 rev.0 SUBMERGED ARC WELDED PIPES
GOST 20295-85, Steel welded pipes for main gas-and-oil pipelines Specifications(530-820mm)- K34, K38, K42, K50, K52, K55, K60,K65
GO R 52079:2003, Steel welded pipes for trunk gas pipelines, oil pipelines and oil products pipelines. Specifications.
GOST R ISO 10124:1999, Seamless and welded (except submerged arc-welded) steel tubes for pressure purposes - Ultrasonic testing for the detection of laminar imperfections.
GOST R ISO 10332:1999, Seamless and welded (except submerged arc-welded) steel tubes for pressure purposes. Ultrasonic testing for the verification of hydraulic leak-tightness.
GOST R ISO 10543:1999, Seamless and hot-stretch-reduced welded steel tubes for pressure purposes - Full peripheral ultrasonic thickness testing.
GOST R ISO 3183:2010, Petroleum and natural gas industries - Steel pipe for pipeline transportation systems. - 2nd edition.
IPS-M-PI-190 Material And Equipment Standard for Line Pipe
IGS-MS-PL-001 Specifications for Pipes, Electric Resistance Welded Type(ERW)
KOC-MP-018 KOC Standard for Seamless Pipe to API 5L
KOC-MP-019 KOC Standard for Submerged-Arc Welded (SAW) Pipe to API 5L
KOC-MS-001 Part 1 Kuwait Material Specification Line Pipe for Sour Service
NFA 49-211/ NFA 49-411 TUE 220,TUE 250,TUE 275,TUE 290,TUE 320,TUE 360,TUE 415,TUE 450
NRF-001-Pemex-2007 Steel Piping for Hydrocarbon Collections and Transportation
NRF-001-PEMEX-2007 TUBERíA DE ACERO PARA RECOLECCIóN Y TRANSPORTE DE
RP 43-1 Onshore Transmission Pipelines to BS 8010
01-SAMSS-332/01-SAMSS-333 High frequency welded line pipe
01-SAMSS-035 and 01-SAMSS-038 Submerged-arc welded line pipe per
TOTAL GS EP PLR 202 Fabrication of longitudinally submerged arc welded pipes for
pipelines (sweet service)
TOTAL-GS-PLR-212 REV.04 Fabrication of Longitudinally Submerged Arc Welded Pipes for Pipelines Intermediate and Sever Sour Service
1.2. Pipe for General and Structural Uses
API 2B Specification for the Fabrication of Structural Steel Pipe
ASTM A134 Electric-Fusion (Arc)-Welded straight seam or spiral seam welding, in nominal diameter of 16 inches (406.4mm) [NPS 16]and over, with wall thicknesses up to 3/4 in. (19.0 mm), inclusive.
ASTM A139 Electric-Fusion (Arc)-Welded straight-seam or helical-seam steel pipe. Pipes are manufactured in nominal diameters of 4 inches and larger with nominal (average) wall thickness of 1.0 in. [25.4 mm] and less.
ASTM A155 Electric Fusion Welded Steel Pipe for High Temperature Service
ASTM A252 FOUNDATION PILES for soil consolidation, marine wharfs
ASTM A500 Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes
ASTM 572 Gr.50, EH36TM, DH36, DH36TMZ
ASTM A671 All Electric-Fusion-Welded Steel Pipe for Atmospheric & Low Temperature
ASTM A672 All Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperature
ASTM A691 Carbon and Alloy Steel Pipe, Electric-Fusion Welded for High Pressure Service at High Temperatures
ASME Sec VIII DIV1 UCS-56 Post Weld Heat Treatment for Pressure Vessels Constructed Carbon
of Low Alloy Steels
Sec VIII DIV1 UNF-56 Post Weld Heat Treatment of Nonferrous Materials
Sec VIII DIV1 UHA-32 Post Weld Heat Treatment for Pressure Vessels Constructed
of High Alloy Steels
AWWA C200-97: Steel Water Pipe-6 In. (150 mm) and Larger
AS1579 Arc-Welded Steel Pipes and Fittings for Water and Wastewater
AS 2159 Piling Design and Installation
AS 812 Bored Piles
BS 2059 Part I & II Gr. 320, Gr. 360
BS 3601 Steel Pipe and Tubes for Pressure Proposes Carbon Steel: Ordinary Duties- Gr. 360,Gr. 430,
BS 7191 All Specification for Weldable Structure Steels for Fixed Offshore Structures
DIN 1615 Welded circular tubes of non-alloy steel without special quality requirements.
DIN 1626 Welded circular tubes of non-alloy steel with special quality requirements-St. 37.0,St44.0, St.52.0
DIN 1628 Welded circular tubes of non-alloy steel with very high quality requirements- St. 37.4
DIN 2458 Plain end welded steel tubes, dimensions and conventional masses per unit length- DIN 2470 Part 1 St. 37.0,St44.0, St.52.0
DIN 2460 Steel tubes for waterworks services DIN 2460
DIN 17120 Welded structural steel circular tubes for structural engineering purposes
DIN 17172 Steel pipes for pipelines for the transport of combustion fluids and gases--DIN 2470 Part II St. E210-7, E240-7,E290-7, St. E 320-7,St.E 360-7
DIN 17174 Welded circular steel tubes for low temperatures
DIN 17177 St. 37.8, St. 42.8
EN 10219-1 Cold formed welded structural hollow sections of non-alloy and fine grain steels. Part 1: Technical delivery requirements.
EN 10210 S275, S355 Hot Finished Structural Hollow Section of Non-Alloy and Fine Grain Structural Steels
EN 10224 Steel pipes, joints and fittings for the conveyance of aqueous liquids including potable water
EN 10296-1 Welded steel tubes for mechanical and general engineering purposes – TDR. Part 1: Non alloy and alloy steel tubes
JIS G 3444 Carbon Steel Tubes for General Structural Purpose- STK 90,400,490,500,540
JIS G 3457 Arc Welded Carbon Steel Pipe- STPY 400
JIS A5525 Steel Pipe Pile
KS D 3566 Carbon Steel Tubes for General Structural Purpose- STK 90,400,490,500,540
KS D 3583 Arc Welded Carbon Steel Pipe- SPW 400
KS F4602 Steel Pipes Piles
KS F4605 Steel Pipe Sheet Piles
1.3.Submarine (Offshore) Pipeline System
DNV OS-F101 Submarine Pipeline Systems-SAWL 245,SAWL290,SAWL 320,SAWL 360,SAWL 415,SAWL 450,SAWL 485,SAWL 555,
2. Coating Specifications
2.1.1 External Epoxy Coating
CAN/CSA-Z245.20 Standard for External Fusion Bond Epoxy Coating for Steel Pipe
AS 3862 Standard Specification for External Fusion-Bonded Epoxy Coating for Steel Pipes
API RP 5L9 Recommended Practice for External Fusion Bonded Epoxy Coating of Line Pipe
AWWA C210 Standard for Liquid-Epoxy Coating Systems for the Interior and Exterior of Steel Water Pipelines
AWWA C213 Standard for Fusion Bonded Epoxy Coating for the Interior and Exterior of Steel Water Pipelines.
DEP 18.104.22.168-Gen TECHNICAL SPECIFICATION FOR EXTERNAL FUSION-BONDED EPOXY POWDER COATINGFOR LINE PIPE
NFA 49-710 Standard Specification for External FBE layered Coating
ISO 21809-2:2007, Petroleum and natural gas industries-External coatings for buried or submerged pipelines used in pipeline transportation systems-Part 2: Fusion-bonded epoxy coatings
NACE RP0394 – National Association of Corrosion Engineers Standard Recommended Practice, Application, Performance, and Quality Control of Plant Applied, Fusion Bonded Epoxy External Pipe Coating.
NACPA 12-78 – National Association of Pipe Coating Applicators External Application Procedure for Plant Applied fusion Bonded Epoxy (FBE) to Steel Pipe.
SAES-H-002 Internal and External Coatings for Steel Pipelines and Piping
09-SAMSS-089 Shop-Applied External FBE Coating
09-SAMSS-091 Shop-Applied Internal FBE Coatings
2.1.2 Polyethylene Coating
CAN/CSA Z245.21 External Polyethylene Coating for Pipe
DIN 30670 Polyethylene Sheathing of Steel Tubes and of Steel Shaped Fittings
NFA 49-710 External Three-Layer Polyethylene Based Coating, Application by Extrusion
DNV-RP-F106 Factory Applied External Pipeline Coatings For Corrosion Control
AS/NZS 1518 External Extruded High-Density Polyethylene Coating System for Pipes
ISO/DIS 21809-1 Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 1: Polyolefin coatings (3- layer PE and 3- layer PP)
ISO 21809-4:2009, Petroleum and natural gas industries -External coatings for buried or submerged pipelines used in pipeline transportation systems-Part 4: Polyethylene Coatings (2-layer PE)
DEP 22.214.171.124-Gen. TECHNICAL SPECIFICATION FOR EXTERNAL POLYETHYLENE AND POLYPROPYLENE COATING FOR LINE PIPE
GOST 9.602 or TOR registered by “Gazprom” and “TransNeft” SC-Tubes with insulation of coal-water slurry
IPS-G-TP-335 Material and Construction Standard for Three Layer Polyethylene Coating System
NFA 49-710 External 3 layer Polyethylene Coating
PETROBRAS' ET-200.03 Engineering Specification ("Piping Materials for Production and Process Facilities") for using low density linear polyethylene in carbon steel piping, as to appendix 13 of such specification.
09-SAMSS-113 External Renovation Coating for Buried Pipelines and Piping (APCS-113)
UNI 9099-DIN 30670 Polyethylene Coating Applied by Extrusion
2.1.3 Polypropylene Coating
DIN30678 Polypropylene Sheathing of Steel Tubes and of Steel Shaped Fittings
EN 10286 Steel tubes and fittings for onshore and offshore pipelines –External three layer extruded polypropylene based coatings.
NFA 49-711 External Three-Layer Polypropylene Based Coating, Application by Extrusion
09-SAMSS-114 Shop-Applied Extruded, Three-Layer Polypropylene External Coatings for Line Pipe
2.1.4 Polyurethane Coating
AWWA C222-99: Polyurethane Coatings for the Interior and Exterior of Steel Water Pipe and Fittings
BS 5493- Polyurethane Coating
DIN 30677.2 polyurethane Insulation of the fittings
EN 10290- External Liquid Applied Polyurethane Coatings
2.1.5 Polyolefin Coating
AWWA C225-03: Fused Polyolefin Coating Systems for the Exterior of Steel Water Pipelines
AWWA C215-99: Extruded Polyolefin Coatings for the Exterior of Steel Water Pipelines
AWWA C216-00 Standard for Heat-Shrinkable Cross-Linked Polyolefin Coatings for the Exterior of Special Sections, Connections, and Fitting for the Steel Water Pipelines
AWWA C224 - 01: Two-layer Nylon-11 Based Polyamide Coating System for Interior and Exterior of Steel Water Pipe and Fittings
AWWA C225 - 03: Fused Polyolefin Coating Systems for the Exterior of Steel Water Pipelines
2.1.6 Tape Coating
ISO 21809-3:2008, Petroleum and natural gas industries-External coatings for buried or submerged pipelines used in pipeline transportation systems-Part 3: Field joint coatings
AWWA C209-00: Standard for Cold-Applied Tape Coatings for the Exterior of Special Sections, Connections, and Fittings for Steel Water Pipelines
AWWA C214-00 Standard for Tape Coating Systems for the Exterior of the Steel Water Pipelines
AWWA C217-99 Standard for Cold-Applied Petrolatum Tape and Petroleum Wax Tape Coatings for the Exterior for Special Sections, Connections, and Fittings for Buried/Submerged Steel Water Pipelines
AWWA C218-02 Standard for Coating the Exterior of Aboveground Steel Water Pipelines and Fittings
AWWA C224-01: Two-layer Nylon-11 Based Polyamide Coating System for Interior and Exterior of Steel Water Pipe and Fittings
EN 12068 - DIN 30672 STANDARD-POLYETHYLENE SELF ADHESIVE TAPES
2.1.7 Bitumen Coating
DIN 30673 Bitumen coatings and linings for steel pipes, fittings and vessels.
2.1.8 Coal-Tar Enamel Coating
AWWA C-203 Coal-Tar Protective Coatings and Linings for Steel Water Pipelines-Enamel and Tape-Hot-Applied
AWWA C205 Cement Mortar Protective Lining and Coating for Steel Water Pipe - 4 inch (100 mm) and Larger- Shop Applied
2.1.9 Concrete Weighted Coating
DNV-OS-F101 Submarine Pipeline System
ASTM C171 Specification for Sheet Material for Coating Concrete
BS EN 12620 Aggregates for Concrete
ISO 21809-5:2009, Petroleum and natural gas industries -External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 5:External concrete coating.
ASTM C42 Standard Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete
ASTM C642 Standard Test Method for Specific Gravity, Absorption and Voids in Hardened Concrete
ASTM C87 Standard Test Method for Effect of Impurities in Fine Aggregate on Strength of Mortar BS 1881 Methods of Testing Concrete
BS 3148 Methods of Test for Water for Making Concrete
BS 4482 Hard Drawn Mild Steel Wire for the Reinforcement of Concrete
BS 4483 Specification for Steel Fabric for the Reinforcement of Concrete
BS 4449 Specification for Carbon Steel Bars for Reinforcement of Concrete
ISO 4012 Determination of Compressive Strength of Test Specimen
2.1.10 Marine Coating
EN ISO 12944:1998 – Paints & Varnishes – Corrosion Protection of Steel Structures by protective paint system (parts 1 – 8)
ISO 20340:2009 Paints and varnishes – Performance requirements for protective paint systems for offshore and related structures
ISO 15741 Paints and varnishes-Friction-reduction coatings for the interior of on- and offshore pipelines for non-corrosive gases
2.2.1 Epoxy Lining
API RP 5L2 Recommended Practice for Internal Coating of Line Pipe for Non-Corrosive Gas Transmission Service.
API RP 5L7 Recommended Practice for Unprimed Internal Fusion Bonded Epoxy Coating of Line Pipe
AWWA C210: Liquid-Epoxy Coating Systems for the Interior and Exterior of Steel Water Pipelines
NFA 49-709 Internal can be epoxy 80 microns
TS EN 10289
NFA 49708 Recommended Practice for Internal Coating of Line Pipe
Tubular piles are tubular pipes used for piling purposes,which are also called steel piles,piping tubes,or tubular piling. Tubular piles are normally large diameter piles because bigger bending moment are required in lots of cases.
Tubular piling are available in numerous European and US steel grades and can be coated on request and are provided with C9 connectors. Steel piles are the main retaining elements of the combined wall, carrying horizontal loads from soil and water pressures and vertical foundation loads. The intermediary Z-type sheet piles transfer horizontal loads to the tubular piles.Piling tubes are manufactured in a range of materials, from standard carbon steel to high tensile steel, and in all thicknesses to suit specified design. Our piling designs are well proven in quay walls and as the backbones of floating structures. Wider applications include foundation works and construction pipes, industrial pipeline networks, communications infrastructure, and machinery.
The tubular combined wall not only service as the retaining wall member, resisting horizontal loads, but also serve as bearing pile which resist vertical loads. The OZ sheet pile can be shorter than the tubular piles and only have the functions of earth retaining and load transfer. Nowadays the interlocks used in the combined piles have many choices on the market, C9 C14 are the most traditional sheet piling accessory.Further fabrications, like piling shoes,lifting ligs, weld beads, beveled ends, corner sections, paintings...etc we can all do in our workshops.SGS or BV Inspection report is normally supplied.
Ø With our pipe pile mill strategically located near the port and our strong steel pile production ability, No limit on tubular pile dimensions, This is especially important for deep foundations,quay wall, cofferdam,Jetty construction. The biggest tubular pipes we have produced, length up to 100m,diameter up to 3m.Any steel grade,X70 or S460 or A690,as long as you name it, we will produce for your steel piles. Our SSAW pipe machines can produce up to 26mm thickness pipe piling, our LSAW machines can produce up to 80mm thickness piling pipes.
Ø We have been in the steel piling industry for over 15 years, and we are in good contact with numerous sheet piling contractors, the big construction companies in the ENR list, design institutes etc, we know your needs and will fulfill it perfectly.
Ø Our steel piling factory will produce the required sheet piles sizes, and corner sections as well. So that we will ship with tubular piles in one shipment, you just need to install them at jobsites.
Ø Further fabrications, like piling shoes, lifting ligs, weld beads, beveled
ends, corner sections, paintings...etc we can all do in our workshops.SGS or BV Inspection report is normally supplied.
Our inhouse painting facilities allows for any kind of anti-corrosion protection: Painting, Petrolatum Tapes, Galvanizing.
Any Complex Fabrications
Sheet pile interlocks
Factory made L&T clutch
L&T clutch to connect pipes
Small pipe connectors
Sheet pile welded on pipes
Pipe driving shoes
For floating fenders
For pipe-pipe combiwall
Tubular Pile Classifications
Pipe piles are produced from different steel grade for wide applications, for
example, foundation pipes, king pile, monopile, bearing pile, pipe pile wall,
slope stabilization, pipelines, deep foundation, and struts etc. Depending on
the technology, tubular pipe can be classified as:Spiral Submerged arc Welding pipe pile (SSAW steel pipe)
Spiral steel pipe pile is most frequently used with sheet piles to form tubular combined wall because SSAW pipes can be easily produced in very long length without extra welding and in very big diameters. Spiral submerged arc welding pipes are the ideal options for pipe pile wall,steel pipe piles, with steel interlock for clutch to connect two adjacent pipe piles. Spiral welded tubular pipes are produced from steel coils, welded both internally and externally. The width of steel coils used for steel pipe sheet piles can be varied, but in API standard, the material width should be from 80% of the OD to 300% of OD) Pipe shoes are normally welded to piling pipe due to driving considerations. Weld bead can be applied inside. In lots of cases, spiral piling piles are painted for pipe pile walls.
Longitudinally Submerged arc Welding pipe pile (LSAW steel pipe)
LSAW pipe piles are produced from steel plates, so the single steel pipe pile length can be maximum 16m without extra splicing. While Long welded pipes can be very thick, up to 100mm.Almost all pile shoes are longitudinal pipes.
Longitudinal pipes can form with heavy pipe pile wall, with clutches, shear
rings, and other fabricated components. These steel pipes are typically used in pipelines for liquid or gas or oil and petroleum casings. LSAW pipe pile can also be used as king piles and steel pipe piling.
DSAW Pipe Piling
Double Submerged Arc Weld pipe (DSAW) is created through a welding process in which the welding arc is immersed in flux at the time of welding. Double welds (both inside and outside the pipe) are required to manufacture this pipe, and generally each weld is completed separately. DSAW pipe is normally produced in sizes from 24” through 56” OD and wall thicknesses from .312" through 2".
Pipe piles made from 3-ROLLER BENDING PROCESS can have wall thicknesses up to 100mm which makes them suitable for heavy structural purposes, and are commonly used for legs on offshore installations. There are however, manufacturing limitations on lengths ranging from 2.0m to 12.5m, so multiple splices are required for structural and piping applications.
Options and Accessories
•Interior and exterior weld beading
•Lifting holes, shear rings & end covers
•Additional modifications (brackets, tongue plates etc) also available
Spiralweld Pipe has a joint running along it's entire length in a spiral form. Due to the manufacturing process, a wide variety of diameters can be produced. The length range is infinite and is determined only by the customer's transportation budget.
SAW PIPE Production Process
Submerged arc welded (SAW) large line pipe derives its name from the stage in the production process wherein the welding arc is submerged in flux while the welding occurs. The flux protects the steel in the weld area from impurities found in the air when heated to welding temperatures. Double submerged arc welded (DSAW) large line pipe requires both inside and outside welds, which are accomplished in separate processes, hence the “double” prefix. DSAW encompasses both longitudinally welded SAW (LSAW) and helical (or spiral) welded SAW (HSAW).
[ LSAW large line pipe is most often produced using either the pyramid rolls method (also known as the rolled and welded method) or the U&O method (also known as the “U O-E” method). The difference between these two processes exists only in the method of forming the steel cylinder. The pyramid rolls method begins with three rolls arranged in a pyramidal structure, between which the steel plate is pressed until it is formed into a cylinder – the time required depends on the grade and thickness of the plate. In the U&O method, the cylinder is first formed into a U shape using a “U” press, then curled into an O shape (i.e., a cylinder) using an “O” press. Under this method, the “E” in the U-O-E descriptor signifies the press process in which the pipe is trade (or “stitch”) welded until further SAW welding is performed.
Once formed, the cylinder is then welded both from the inside and the outside longitudinally along the length of the cylinder using the SAW process, with up to five welding wires, which in the end results in a welded pipe.
Stages in the LSAW production process typically include: cutting and baiting the steel into strips (“skelp”); pre-bending; forming; stitch and pre-welding; internal and external SAW processing; finishing; straightening; cold expanding (for yield strength); demagnetization; seam removal, and bevelling (depending on the order in question).
HSAW (or “spiralweld”) large line pipe is characterized as a steel pipe having a DSAW seam the entire length of the pipe in a spiral form. HSAW is produced using hot-rolled coil that is formed into a hollow cylinder by twisting the skelp as it is unrolled (in the same manner that the cardboard core in a roll of paper towel is formed) and then welded as the edges come together using an automated SAW process both inside the cylinder and outside the cylinder. The end product is a welded pipe.
Stages in the HSAW production process typically include: de-coiling and leveling; skelp end welding for continuous rolling; edge trimming and bevelling; forming and tack welding; cutting to length; skelp and repair welding; inside cleaning of pipe; internal and external SAW; further inside cleaning; weld seam removal at pipe ends; and beveling of pipe ends.
Both LSAW and HSAW large line pipe production processes also comprise a number of quality control steps including, but not limited to, the following: skelp and edge ultrasonic testing; sampling and destructive testing; inspection of SAW; tack weld inspection; hydrostatic testing; ultrasonic testing; x-ray weld inspection/filmless radiography; final inspection; and generation of certificates. The complainant employs both the LSAW process and the HSAW process for its production of large line pipe.
Using the U&O method, large line pipe is generally produced in 40-foot lengths (commonly known as “double random lengths” or “DRL”). Using the pyramid roll method, however, large line pipe is most often produced in 20-foot lengths (“single random lengths” or “SRL”) or shorter; this may require producers to girth weld multiple sections together to achieve greater lengths, as needed. Using the spiral weld method, large line pipe can be rolled into exact lengths up to approximately 115 feet (including “triple random lengths”/“TRL” of 60 feet and “quadruple random lengths”/”QRL” of 80 feet).
ACCESSORIES | Pipe Piling
A chill ring includes a cylindrical non-consumable base metal ring having an outside diameter sized to fit adequately inside the diameter of the pipe end to be welded.
Conical points are used to push the earth aside and maintain grinding. On rough surfaces, the point distributes the load around the entire pipe, rather than focusing the shock on only a section.
A open-end cutting shoe is an exceptionally tough, heat-treated cast steel shoe with a ledge to ease driving. Use of a cutting shoe protects the pipe end and makes it possible to use a thinner pipe.
Pipe caps are available in all standard sizes ranging from 8 5/8" to 72".
Pipe piling splicers are available in all pipe sizes. Pipe splicers help ease alignment of pipe and drive it with no welding required.
B31.1 Code for pressure piping. Prescribes minimum requirements for design, manufacture, test, and installations
of power piping systems for steam generating plants, central heating plants, and industrial plants.
B31.2 Fuel Gas Piping.
B31.3 Petroleum Refinery Piping.
B31.4 Liquid PetroleumTransportation Piping Systems.
B31.5 Refrigeration Piping.
B31.7 Nuclear Power Piping
B31.8 GasTransmission and Distributing Piping Systems. Covers design, fabrication, installation, inspection,
testing, and the safety aspects of operation and maintenance of gas transmission and distribution systems.
API RP5L2: Recommended Practice for Internal Coating of Line Pipe for Non-Corrosive Gas Transmission Service.
ASTM A775: Standard Specification for Epoxy-Coated Steel Reinforcing Bars.
ASTM A950: Standard Specification for Fusion-Bonded Epoxy-Coated Structural Steel H-Piles and Sheet Piling.
ASTM A972: Standard Specification for Fusion-Bonded Epoxy-Coated Pipe Piles.
CSA Z245.20-10: Plant-Applied External Coatings for Steel Pipe (Fusion-Bonded Epoxy Powder & Coating Qualifications).
ISO 15741: Paints and Varnishes - Friction-Reduction Coatings for the Interior of On-and Offshore Steel Pipelines for Non-Corrosive Gas.
NACE RP0394-2002: Application, Performance, and Quality Control of Plant-Applied, Fusion-Bonded Epoxy External Pipe Coating.
(Fusion-Bonded Epoxy Power & Coating Qualifications).
Longitudinally Welded Pipe Piles
Pipe piles made from UOE or JCOE pipe can have wall thicknesses up to 80mm which makes them suitable for heavy structural purposes, and are commonly used for legs on offshore installations. There are however, manufacturing limitations on lengths ranging from 2.0m to 12.5m, so multiple splices are required for structural and piping applications.
Options and Accessories
Interior and exterior weld beading
Lifting holes, shear rings & end covers
Additional modifications (brackets, tongue plates etc) also available
|Standard Met︰||7305.11.00 LINE PIPE, submerged arc welded, complying with ISO 3183-3, Grade L450, having BOTH of the following: with ISO 3183-3,
(a) outside diameter greater than 1400 mm;
(b) wall thickness greater than 29 mm but NOT greater than 31 mm
7305.11.00 LINE PIPE,Petroleum Institute (API) Standard, Specification 5L PSL 1, have all of the following: OIL AND GAS, complying with American
(a) varnish coatings;
(b) length NOT less than 12 metres;
(c) bevelled ends;
(d) wall thickness NOT less than 9 mm and NOT greater than 13 mm;
(e) outside diameter NOT less than 640 mm and NOT greater than 800 mm;
(f) longitudinally submerged arc welding;
but NOT including spirally submerged arc welded steel line pipe
complying with Australian Standard AS 1579
7305.11.00 PIPE, SUBMERGED ARC WELDED (SAW), having EITHER of the following:
(a) outside diameter NOT less than 750 mm;
(b) wall thickness NOT less than 9.53 mm
7305.11.00 LINE PIPE,submerged arc welded, to DNV-OS-F101 submerged arc welded, to DNV-OS-F101
7305.12.00 LINE PIPE,American Petroleum Institute standard API Specification grade X65,having BOTH of the following: ELECTRIC RESISTANCE WELDED(ERW), complying with
(a) outside diameter (OD) NOT less than 508 mm;
(b) wall thickness (WT) NOT less than 19.1 mm
7305.12.00 LINE PIPE, OIL AND GAS PIPELINE, steel, having BOTH of the following:
(a) diameter NOT less than 645 mm;
(b) longitudinally welded
7305.12.00 PIPE, to specification API 5L Grade B, ASTM A53 B, being either of the following sizes (+/- 10%): 5L Grade B, ASTM 53B, being EITHER of the
(a) OD 762 mm, WT 9.5 mm;
(b) OD 760 mm, WT 9.5 mm
7305.12.00 LINE PIPE, OIL AND GAS PIPELINE, steel, having BOTH of the following:
(a) diameter NOT less than 645 mm;
(b) longitudinally welded
7305.19.00 PIPE, SUBMERGED ARC WELDED (SAW),helical,having both of the following: (SAW), helical, having BOTH of the
(a) outside diameter NOT 750mm less than 750 mm;
(b) wall thickness NOT less than 9.53 mm
7305.31.00 WELD TEST RINGS,Pipeline Systems complying with Offshore Standard for Submarine Pipeline Systems DNV-OS-F101 complying with Offshore Standard for Submarine
7305.39.00 STEEL PIPE, spirally welded, conforming to American Petroleum Institute Specification 5L (API 5L), Grade B steel, having ALL of the following:
(a) length NOT greater than 12 m;
(b) diameter NOT less than 762 mm;
(c) NOT less than three layers of polyethylene;
(d) maximum pressure rating 2.7 MPa;
(e) rubber inserts
7305.39.00 WELD TEST RINGS, complying with DNV-OS-F101
7306.11.00 LINE PIPE, complying with DNV-OS-F101