Products

Product Catalog > Welded Pipe

ASTM A252,AWWA C200,AS 1579,EN10025-2,EN10219-1 FLANGED STEEL PIPE,DREDGED PIPE

ASTM A252 GR.3 FLANGED SPIRAL WELDED PIPE

Model No.︰	-
Brand Name︰	ASTM A252,AWWA C200 WATER PIPE, DREDGED PIPE
Country of Origin︰	-
Unit Price︰	US $ 875 / MT
Minimum Order︰	50 MT

Total 18 Related Items

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

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 1626 WELDED CIRCULAR TUBES OF NON ALLOY STEELS WITH SPECIAL QUALITY EQUIREMENTS
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
UNI-ISO 5256/87 STANDARD-BITUMEN COATING

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
INTERZONE 954

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).

ACCESSORIES | Pipe Piling

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.

Options and Accessories

Driving Shoes
Interior and exterior weld beading
Clutches
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

ASTM A252 GR.3 FLANGED SPIRAL WELDED PIPE

DREDEGING PIPE