• No.101 Wanbo 1st Road, Nancun Town, Panyu District, Guangzhou, Guangdong, China
  • 0086-020-84886013，84886093，84886091，84886012
  • sales@finegosteel.com
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Coated Steel Pipe

Concrete Coated Pipe

Application: used for natural gas, petroleum, water & sewage, and pipe systems
OD: 219mm~2020mm
WT: 5mm~25mm
Length: 4mtr, 6mtr, 12mtr, 18mtr, 21mtr
Standard: din 30670, din 30671, din 30678, sy/t0413-2002 etc.
Pipe Tape: submerged arc welded (lsaw/ssaw), electric resistance welded
End: plain end/bevelled end, burr removed
Coating Thickness: three layer polyethylene coating (2mm~4.5mm)

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Standard

Specification

A concrete coated pipe, also known as a concrete weight coating pipe (CWC pipe), is a steel pipe that has been externally coated with concrete. The concrete coating consists of a mixture of cement, aggregates, reinforced steel mesh, and water. The purpose of this coating is to provide strong downward force protection or negative buoyancy for the pipelines. These pipes are commonly used in sub-sea (submarine) pipelines, as the concrete coating adds the necessary weight to withstand the pressure of seawater.


Product:

Concrete Coated Pipe, Concrete Weight Coating

Application:

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

Size:

OD: 219mm~2020mm

WT: 5mm~25mm

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

Standard

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

Pipe tape

Submerged Arc Welded (LSAW/SSAW), Electric Resistance Welded

End

Plain End/Bevelled End, Burr Removed

Coating Thickness

Three Layer Polyethylene Coating (2mm~4.5mm)

Packing

Waterproof Paper wrapped, Steel Strips bundled, two tags on each bundle


Dimensions Ranges for Concrete Coated Pipe

Mother pipe standards: API 5L Grade B to Grade 80. ISO 3183 Grade L245 to L555.

Diameter range: 6” to 60”

Pipe Thickness: SCH 20, SCH 40, SCH 80

Length: Up to 12 meters


Benefits of Concrete Coated Pipe

• Mechanical protection and negative buoyancy

• Anti-corrosion protection

• Excellent Compatibility

• Long-term adhesion to steel

• Well suited to reel laying methods

• High resistance to cathodic disbondment

• And much more


Referred Standards

DNV-OS-F101: Submarine Pipeline Systems – SAWL 245, SAWL 290, SAWL 320, SAWL 360, SAWL 415, SAWL 450, SAWL 485, SAWL 555
ISO 21809-5:2010: Petroleum and natural gas industries – External coatings for buried or submerged pipelines used in pipeline transportation systems – Part 5: External concrete coatings.


• ASTM C42 Standard Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete
• ASTM C87 Test Methods for Effect of Impurities in Fine Aggregate on Strength of Mortar BS 1881 Methods of Testing Concrete
• ASTM C642 Standard Test Method for Specific Gravity, Absorption and Voids in Hardened Concrete
• BS 3148 Test Methods for Water for Making Concrete
• BS 4449 Material Specification for Carbon Steel Bars for Concrete Reinforcement
• BS 4482 Hard Drawn Mild Steel Wire for the Reinforcement of Concrete
• BS 4483 Specification for Steel Fabric for the Reinforcement of Concrete
• ISO 4012 Test Specimen of Determination of Compressive Strength

Packing

  • OD below 219mm (Bundled)Pipe cap + Anti-collision rope + steel belts bundled (woven bag under the steel belts) + two nylon slings

    OD below 219mm (Bundled)Pipe cap + Anti-collision rope + steel belts bundled (woven bag under the steel belts) + two nylon slings

  • Pipe cap + Anti-collision rope + steel belts bundled (woven bag under the steel belts) + two nylon slings

    Pipe cap + Anti-collision rope + steel belts bundled (woven bag under the steel belts) + two nylon slings

  • Pipe cap + two nylon sling+wooven bag packing

    Pipe cap + two nylon sling+wooven bag packing

  • woven bags packing

    woven bags packing

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  • No.101 Wanbo 1st Road, Nancun Town, Panyu District, Guangzhou, Guangdong, China
  • 0086-020-84886013，84886093，84886091，84886012
  • sales@finegosteel.com
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