CRA clad pipe or lined steel pipes for oil and gas industry

/ / Published in Clad Pipe

Pipeline System offers a variety of CRA clad pipe or lined steel pipes including helical seam clad steel pipe，longitudinal seam clad steel pipe, and seamless or welded lined steel pipe, and produces the corresponding elbows etc.in accordance with API Spec 5LD, DNV-OS-F101, SY/T6623 and CJ/T192.
Clad pipes consist of an internal CRA layer which is metallurgically bonded to the backing carbon-steel. Different manufacturing processes (e.g. hot rolling or weld overlay) are used to bond the CRA layer to the carbon steel. In contrast to clad pipes, lined pipes have a CRA lining that is mechanically bonded to the carrier pipe.

PRODUCT MATERIALS of CRA clad pipes or lined steel pipes
1.BACKING MATERIALS:
Q235B, Q345B, Q245R, Q345R, 16MnDR, L245～L485 (API 5L Gr.B, X42～X70), and other backing materials may be used according to user’s requirement.
2.CRA GRADES:
S30408 (TP304), S30403 (TP304L), S31608 (TP316), S31603 (TP316L), S32168 (TP321), S31803 (LC2205), S31260 (LC2506), N06625 (ASTM B443 625), N08825 (ASTM B424 825), and other corrosion-resistant cladding materials may be used according to user’s requirement.

material of clad pipes

material of clad pipes

SIZE TABLE of CRA LINED STEEL PIPE 

  Nominal O.D. Nominal W.T.(total thickness), mm Nominal W.T.(total thickness), mm Pipe length, m
NPS inch mm 4 5 6 7 8 9 … 17 19 22 25 31 33 35 40 45 50 54 60 API 5LD DNV OS-F101 CJ/T192  
4 4.500 114.3 √ √ √ √ √ √ √ √                       2.5 2.5 1.2 8.0-12.5
5 5.563 141.3 √ √ √ √ √ √ √ √ √                    
6 6.625 168.3 √ √ √ √ √ √ √ √ √ √                  
8 8.625 219.1   √ √ √ √ √ √ √ √ √ √                
10 10.750 273   √ √ √ √ √ √ √ √ √ √ √              
12 12.750 273   √ √ √ √ √ √ √ √ √ √ √ √            
14 14 355.6   √ √ √ √ √ √ √ √ √ √ √ √ √           1.5
16 16 406.4     √ √ √ √ √ √ √ √ √ √ √ √ √        
18 18 457       √ √ √ √ √ √ √ √ √ √ √ √ √       1.8
20 20 508         √ √ √ √ √ √ √ √ √ √ √ √ √    
22 22 559           √ √ √ √ √ √ √ √ √ √ √ √ √   2.0
24 24 610             √ √ √ √ √ √ √ √ √ √ √ √ √
  Nominal W.T., mm 4 5 6 7 8 9 … 17 19 22 25 31 33 35 40 45 50 54 60 Cladding min. thickness, mm
Remarks:

1) Special sizes may be agreed upon between the manufacturer and the purchaser;

2) The min. thickness of the cladding may be agreed upon between the manufacturer and the purchaser.

 

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1 Comment to “ CRA clad pipe or lined steel pipes for oil and gas industry”

  1. film says :
    December 17, 2017 at am9:29

    Solid CRA, Clad and Lined Pipes. For clad pipes, the layer of Corrosion Resistant Alloy (CRA) is applied using different procedures that create a metallurgical bond, while the lined pipe is applied through a mechanical bond between the CRA and the C-Mn pipe.

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