Model No.︰-


Country of Origin︰-

Unit Price︰US $ 875 / MT

Minimum Order︰50 MT

Inquire Now

Product Description

Dia Wall Thickness
mm mm
  8.0 8.8 9.5 10.0 11.0 12.5 14.2 16.0 17.5 19.0 20.0 20.6 22.2 23.8 25.0 27.0 28.6 30.2 31.8
508 99 108 117 123 135 153 173 194 212 229 241 248              
559 109 119 129 135 149 168 191 214 234 253 266 274              
610 119 130 141 148 162 184 209 234 256 277 291 299 322 344 361        
660 129 141 152 160 176 200 226 254 277 300 316 325 349 373 392 421 445    
711 139 152 164 173 190 215 244 299 324 341 351 377 403 423 455 481 507    
762 149 163 176 185 204 231 294 321 348 366 377 405 433 454 489 517 545    
813 159 175 188 218 247 280 314 343 372 391 403 433 463 486 523 553 583    
864 169 186 200 211 231 262 298 355 396 416 428 461 493 517 557 589 621    
914 179 196 212 223 245 278 315 354 387 419 441 454 488 522 548 591 624 658 692
1016 199 219 236 248 273 309 351 395 431 467 491 506 544 582 611 659 696 734 772
1168     271 286 314 356 404 455 497 538 566 583 627 672 705 760 804 847 891
1220     284 298 328 372 422 475 519 563 592 609 656 702 737 794 840 886 932
1270     295 311 342 388 440 495 541 586 617 635 683 731 768 828 876 923 971
1372     319 336 369 419 475 353 584 634 667 686 739 791 830 895 947 999 1051
1420           434 492 554 605 656 691 711 765 819 860 928 981 1035 1089
1473           450 511 575 628 681 717 738 794 851 893 963 1019 1075 1130
1620           496 562 633 692 750 789 813 875 937 983 1061 1122 1184 1246
1676           513 582 655 716 777 817 841 906 970 1018 1098 1162 1226 1290
1820           557 632 712 778 844 888 914 984 1054 1107 1194 1264 1333 1402
1829           560 635 715 782 848 892 919 989 1059 1112 1200 1270 1340 1409
2020           619 702 791 864 938 986 1016 1094 1172 1230 1327 1405 1482 1559
2032           623 707 795 869 943 992 1022 1100 1179 1237 1335 1413 1491 1569
2134           654 742 836 913 991 1043 1074 1156 1239 1300 1403 1485 1567 1649
  This table shows availability, and weight in kg/m


Pipe piles is a structural building material used to support and stabilize a building's foundation. When the soil below a building is loosely packed, it may not offer enough strength to keep the building stable over time. A pipe piling can be used to distribute the weight of the building deeper into the earth, where the soil is often more tightly packed. Pipe piles are also used to support exceptionally large or heavy buildings, where even standard soil cannot offer adequate support. Finally, a pipe piling may be required when the land area is too small to accommodate spread footers or foundations, forcing buildings to dig deeper to achieve sufficient ground stability.

Engineers and installers determine the placement for each pipe pile based on the building loads at various locations. A very heavy load, such as a piece of industrial equipment, may need to sit directly over a pile to ensure adequate support. When building loads are evenly distributed, installers may use a concrete pile cap to support the building. This allows the pipe pilings to be equally spaced below the building, then connected together with the pile cap to act as a large foundation system. 

Piles are driven into the ground using large machines known as pile drivers. These machines contain hydraulic systems which exert extremely high levels of force to drive the piles into the ground. By driving the piles directly into the soil without drilling holes first, the soil itself helps to support and stabilize the piles. As the pile is driven underground, the soil is displaced, which increases friction and pressure around the pile to hold it in place.

Pipe Piles have been used extensively as foundation piles for power stations, high-rise buildings, civil engineering works, bridges, marine structures, harbours, etc.

Each pipe piling must be carefully chosen based on building forces, soil conditions and local building codes. A geotechnical engineer can test the soil to determine whether piles are needed. The structural engineer then determines the size and material needed for each pipe piling, as well as the required depth. When a single pipe is not long enough to reach this depth, piles may be joined together using butt welds or splicing sleeves

  • Combi piles
  • Foundation piles for jetties, offshore platforms and LNG terminals
  • Mooring piles, dolphins, etc.
  • Foundation piles for bridges and onshore foundations
  • Micro piles
  • Struts in building pits

1.Pipe Specification

API 2B Specification for the Fabrication of Structural Steel Pipe
ASTM A139 CHIMNEYS AND VENTILATION DUCTS for air and dust filtering systems, and smoke evacuation, PILLARS for ski chair-lifts and bridges
ASTM A252 Foudation Piles for soil consolidation, marine wharfs---Grade1, Grade 2, Grade 3
ASTM A500 Cold Formed Welded and Seamless Carbon Steel Steel Structural Tubing in Round and Shapes
AWWA C200 : Steel Water Pipe 6 inches and Larger
AS1579 Arc-Welded Steel Pipes and Fittings for Water and Wastewater
AS 2159 Piling Design and Installation
AS 812 Bored Piles
BS 534 : Steel Pipes and Specials for Water and Sewage
BS 6363 Welded Cold Formed Steel Structural Hollow
CSA G40.21-92-CAN CSA-1992 structural quality steels general instruction no 1-2; and 4
DIN 2460 Steel tubes for waterworks services
EN 10219 Cold formed welded structural hollow sections of non-alloy and fine grain steels--S235, S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H
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
IS 4923 Steel tubes for Hollow sections used in structures
JIS G3444 : Carbon Steel Tubes for General Structural Purpose---SS330, SS440, SS490, SPHD, SPHE
JIS G3457 : Arc Welded Carbon Steel Pipes
JIS A5525 : Steel Pipe Piles
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
TIS 427 : Electrically Welded Steel Water Pipes
MWA : Metropolitan Waterworks Authority of Thailand
PWA : Provincial Waterworks Authority of Thailand
RID : Royal Irrigation Department of Thailand
EGAT : Electricity Generating Authority of Thailand

2. Coating Specifications
2.1.External Coating
2.1.1 External Epoxy Coating

CAN/CSA-Z245.20 Standard for External Fusion Bond Epoxy Coating for Steel 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.
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.

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
AS/NZS 1518 External Extruded High-Density Polyethylene Coating System for Pipes
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
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

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

2.1.10 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. Internal Coating

2.2.1 Epoxy Lining
AWWA C210: Liquid-Epoxy Coating Systems for the Interior and Exterior of Steel Water Pipelines

2.2.2 Bitumen Lining
DIN 30673 Bitumen coatings and linings for steel pipes, fittings and vessels

2.2.3 Cement Mortar Lining
AS/NZS 1516 Cement Mortar Lining of Pipelines In Situ
AWWA C203-02: Coal-Tar Protective Coatings & Linings for Steel Water Pipelines, Enamel & Tape, Hot-pap. (Incl. add. C203a-99)
AWWA C205-00: Cement-Mortar Protective Lining and Coating for Steel Water Pipe- 4 In. (100 mm) and Larger-Shop application
AWWA C602 Standard for Cement-Mortar Lining of Water Pipelines - 4 inch (100 mm) and Larger - In Place


2.3Coating Material Applied:
3M: SK 134, SK6233, SK6352 Toughkote, SK 314, SK 323, SK 206N, SK 226N, SK 6251 DualKote SK-6171, SK 206P, SK226P,
3M Internal Coatings: Coupon EP2306HP
DuPont: 7-2500, 7-2501, 7-2502, 7-2508, 7-2514, 7-2803, 7-2504 Nap Gard Gold 7-2504, Nap Rock: 7-2610, 7-2617 FBE Powders
DuPont: Repair Kits; 7-1631, 7-1677, 7-1862, 7-1851
DuPont Internal Coatings: 7-0008, 7-0010, 7-0014, 7-0009SGR, 7-0009LGR, 7-2530, 7-2534, 7-2509
Akzo Nobel: FBE - Fusion Bond Epoxy
Internline 876 Seal Coat
Hampel: 85448,97840
Denso: 7200, 7900 High Service Temperature Coatings
Internal Liquid Epoxy: Powercrete Superflow

Specifications︰ Steel Dredging Pipe form an integral part of the discharge process and could be used in combination of rubber floating discharge hoses to bring materials to shore. Our steel pipes can be used with floats and once worn out may be easily changed at the sections required.

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".

Spiralweld Pipe

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.

[35] 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).


Chill Rings

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

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.

Cutting Shoes

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

Pipe caps are available in all standard sizes ranging from 8 5/8" to 72".

Pipe Splicers

Pipe piling splicers are available in all pipe sizes. Pipe splicers help ease alignment of pipe and drive it with no welding required.

1.ASTM A53: Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
2.ASTM A252: Standard Specification for Welded and Seamless Steel Pipe Piles
3.ASTM A500: Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes
4.ASTM A501: Standard Specification for Hot-Formed Welded and Seamless Carbon Steel Structural Tubing

AS 1579-2001 Arc-welded steel pipes and fittings for water and waste-water

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).

Coating and Lining Capabilities:
•AWWA C205 – Cement Mortar Lining (NSF 61 approved)
•AWWA C210 – Liquid Epoxy
•Pot-able Epoxy (NSF 61 approved)
•Coal Tar Epoxy
•Epoxy Primers
•AWWA C209/C214 – Tape Wrap Coating
•AWWA C218 – Coating Systems
•AWWA C213 – Fusion Bonded Epoxy Coatings and Linings
•Hot Dip Galvanizing after fabrication
•All types of primers as well as Custom Coating requirements

Options and Accessories

Driving Shoes
Interior and exterior weld beading
Lifting holes, shear rings & end covers
Additional modifications (brackets, tongue plates etc) also available

A dolphin is a man-made marine structure that extends above the water level and is not connected to shore.

Dolphins are usually installed to provide a fixed structure when it would be impractical to extend the shore to provide a dry-access facility, for example, when the number of ships is greater than can be accommodated by the length of the berth/pier.[1]

Typical uses include extending a berth (a berthing dolphin) or providing a mooring point (a mooring dolphin). Dolphins are also used to house navigation aids such as lights or daybeacons, and display regulatory information such as speed limits and other safety information, or advertising. They are also used to protect structures from possible impact by ships, in a similar fashion to boating fenders.[2]

Dolphins typically consist of a number of piles driven into the seabed or riverbed, and connected above the water level to provide a platform or fixing point. The piles can be untreated azobé wood, pressure treated pine wood poles, or steel or reinforced concrete beams, blocks or tubes. Smaller dolphins can have the piles drawn together with wire rope, but larger dolphins are typically fixed using a reinforced concrete capping or a structural steel frame.

Access to a dolphin may be via a pedestrian bridge in the case of mooring dolphins, but is usually by boat.

Product Image