Aplication of ERW HFW welded Steel pipe

API 5L Pipe Line, Oil & Gas Line Pipe

1. Out diameter: 114.3mm - 812.8mm (4"-32")

2. Thickness: 4.0-22.0mm

3. Length: 3m-18m

4. Type: ERW (Electric Resistance Welded) Steel Pipe, HFI (High Frequency Induction) Steel Pipe, HFW (High-Frequency Welding) Steel Pipe

5. Standard: API 5L(ISO 3183) PSL1/PSL2: GR.B-X80, GB/T 9711.1, GB/T 9711.2, ASTM A53: GR.A/GR.B, ASTM A500: GR.A/GR.B/GR.C/GR.D, ASTM A252: GR.1/GR.2/GR.3, EN10219/EN10210: S275/S355JRH/J0H/J2H, AS/NZS 1163

6. Uses: Welded steel pipes for use in pipeline transportation system in the petroleum and natural gas (oil & gas) industries, water pipeline, structural & construction.

7. Chemical Analysis (%):

8. Mechanical Properties

Water Pipeline

Quality Standards:

API 5L Line Pipe for oil and gas

ASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

DIN 2458 WELDED STEEL PIPES AND TUBES

EN10217 Welded steel tubes for pressure purposes. Technical delivery conditions. Non-alloy steel tubes with specified room temperature properties

GB/T3091 Welded steel pipe for low pressure liquid delivery and construction

GB/T9711 Petroleum and natural gas industries--Steel pipe for pipelines

BS 1387 Steel Tubes for use for Water, Gas, Air and Steam

Steel Grade:

BS 1387: Class A, Class B, Class C

EN10210/EN10219: S235, S235JR, S235J2H, S275, S275JR, S355JRH, S355J2H

API 5L: GR.A, GR.B, X42, X46, X52, X56, X60, X65 X70

ASTM A53: GR.A, GR.B

ASTM A252: GR.1, GR.2, GR.3

ASTM A500: GR.A, GR.B, GR.C, GR.D

GB/T9711: L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555 GB/T3091, SY/T5037: Q195, Q215, Q235, Q275, Q295, Q345

Coating Standard:

ISO 21809: Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems

DIN 30670: Polyethylene coatings of steel pipes and fittings

AWWA C210: Liquid-Epoxy Coatings and Linings for Steel Water Pipe and Fittings

AWWA C213: Fusion-Bonded Epoxy Coating for the Interior and Exterior of Steel Water Pipelines

Size:

Outer Diameter: 114.3mm-610mm (4"-24")

Wall Thickness: 3.5mm-22mm

Length: 3mtr-18mtr

End:Plain/square ends (straight cut, saw cut, and torch cut), or Beveled ends, or Threaded ends, or Grooved ends.

Surface:Lightly oiled, Hot dip galvanized, Electro galvanized, Black painted, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy, Fusion Bond Epoxy, 3-layers PE)

Packing:Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips, Plastic caps.

Supply ability:50,000 Metric Tons/Month

Delivery time:7 day at fastest, based on total quantity or as customers’ requirements

Loading port:Tianjin(Xingang) Port or Shanghai port

Payment Term:T/T, L/C at sight or negotiate

Construction & Structural Steel Pipe

Size & Thickness:

Steel piling pipe

Testing Requirements for seamless and welded A252 steel piling pipe

(1) Hydrostatic Testing:Not specified.

(2) Mechanical Tests: Tensile Test: Either longitudinal or transverse at option of manufacturer.

(3) Number of Tests:One tensile test per 200 lengths.

Permissible Variations for A252 steel piling pipe

(1) Wall thickness: Not more than 12.5% under the nominal wall thickness specified.

(2) Weights per foot: Each length of pipe pile shall be weighed separately and its weight shall not vary more than 15 % over or 5 % under its theoretical weight, calculated using its length and its weight per unit length.

(3) Outside diameter: Shall not vary more than plus or minus 1% from the diameter specified.

Lengths of A252 steel piling pipe

Pipe piles shall be furnished in single random lengths,double random lengths, or in uniform lengths as specified in the purchase order, in accordance with the following limits:

(1) Single random lengths: 16ft to 25ft inclusive (4.88 to 7.62 m)

(2) Double random lengths: Over 25ft (7.62m) with a minimum average of 35ft (10.67m)

(3) Uniform lengths: as specified length with a permissible variation of plus or minus 1 inch

Ends:

Pipe piles shall be furnished with plain ends. Unless otherwise specified, pipe piles shall have either flame–cut or machine–cut ends, with the burrs at the ends removed. Where ends are specified to be beveled, they shall be beveled to an angle of 30° (+5°, ?0°), measured from a line drawn perpendicular to the axis of the pipe pile.

Hot-dip Galvanized Coated ERW Steel Pipe

One of the most widely used materials on Earth, steel provides outstanding strength, toughness, and durability. Steel pipe is a versatile, cost effective solution for a broad range of applications, including:

· Construction and architecture

· Water/sewer plumbing

· Pipeline systems

· Gas and fluid transfer lines

· Industrial equipment manufacturing

· Oil and gas processing

Galvanized ERW Steel Pipe Advantage

Galvanized steel pipe features a protective zinc coating that helps prevent corrosion, rust, and the buildup of mineral deposits, thereby extending the pipe’s lifespan. Galvanized steel pipe is most commonly used in plumbing and other water-supply applications.

Galvanized steel pipes are dipped into a protective zinc coating to protect the pipes from corrosion in wet environments. In addition, galvanized pipes are a lower cost alternative to steel to achieve rust free protection for up to 30 years, while maintaining comparable strength with a durable surface coating.

Hot Dip Galvanized Steel Pipe Process Flow:

black pipe inspection — degrease — rinsing — pickling — water cleaning — solvent coating — drying by hot air — Hot Dipped Galvanizing — water cooling — passivation & rinsing — cleaning — drying — inspection and repair — marking, packing and storage

Standards:

ASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

BS 1387 Standard Specification for Screwed and socketed steel tubes and tubulars and for plain end steel tubes suitable for welding or for screwing to BS 21 pipe threads

ASTM A123 Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

Anti-corrosion ERW Steel Pipe

3LPE Coated ERW Steel Pipe

Three layer polyethylene anticorrosion is one of the main technical system of buried pipeline corrosion protection domestic and abroad. It has good corrosion resistance, low water absorption and high mechanical strength. It has been used widely in the field of buried water conveyance, gas transmission and pipeline transportation in recent years.

GB/T23257-2009 technical standard for polyethylene anticorrosion coating for buried steel pipeline

SY/T0413-2002 technical standard for polyethylene corrosion resisting layer of buried steel pipeline

DIN30670-2012 technical standards for polyethylene coatings for steel tubes and fittings in Germany

CAN/CSA-Z245.21-M92 Canadian technical standard for polyethylene pipe anticorrosive coating on outer wall

Use: products are widely used in oil pipelines, natural gas pipelines, heating pipes, water pipelines.

3PP (Polypropylene) Coated ERW Steel Pipe

DIN30678 standard technical specification for polypropylene coating for steel pipe and pipe fittings

3PP Coating Advantages:

The 3PP coated steel pipe refers to steel tubing with three layers of PP(Polypropylene) coating. It offers high electric strength, acid resistance, alkali resistance, salt-tolerance, electric insulation, long service life, thermal endurance and impact resistance. Because of advanced steel pipe coating technology, this type of plastic coated steel pipe features well-bonded coatings.

3PP Coating Applications:

The 3PP coating steel pipe is suitable for transferring special materials, such as high temperature materials, because it offers high electric strength, acid resistance, alkali resistance, salt-tolerance, electric insulation, long service life, thermal endurance and is impact resistant.

FBE Coated ERW Steel Pipe

FBE coating pipe is Fusion Bonded Epoxy coating steel pipe. It is an externally applied heat resin for pipe. With a form of dry powder at thickness 300-600 microns on to the heated surface of pipe. Once the FBE coated on the pipe surface, the FBE film provides an extremely hard surface with great adhesion to the pipe surface. The FBE layer in a even form and have good resistance to the chemical reaction.

Advantage of the FBE coating pipe:

(1) Convenient to spraying, no pollution, excellent resistance for high temperature (-40°C to 85°C)

(2) High strength and anti-bending performances; 

(3) Strong adhesion, good integrity, anti soil stress and wear.

FBE coated steel pipe usually buried in soil and under water between -40°C~85°C temperature.

On the other hand, the defect of the FBE pipe is it doesn’t have good resistance to mechanical performances and humid conditions.

Our FBE coating perform the standards as per SY/T0315, CAN/CSA Z245.20, AWWA C213, Q/CNPC38 etc.

Use: Widely used in land, underwater pipeline anticorrosion.

Polyurethane Insulation Coating ERW Steel Pipe

The polyurethane direct buried heat preservation pipe is a direct buried preheating heat preservation pipe with good heat preservation performance, safety and reliability, and low engineering cost. The buried thermal insulation pipe not only has the advanced technology and practical performance that is difficult to compare with the traditional trench and overhead laying pipeline, but also has obvious social and economic benefits, and is also a powerful measure for heating and energy saving.

It is characterized by a multi-purpose use to prevent the spread of fire and good fire safety performance. Black jacket insulation pipe includes spiral steel pipe, straight seam steel pipe and seamless steel pipe. The outer layer is made of black polyethylene and is called a black jacket insulation tube.