Review of the In-Air Fatigue Behaviour of CRA Clad and Lined Pipe

2019 ◽  
Author(s):  
Carol Johnston ◽  
Jenny Crump
Keyword(s):  
Carbon Steel ◽  
Fatigue Behaviour ◽  
Full Scale ◽  
Fatigue Performance ◽  
Steel Pipe ◽  
Corrosion Resistant ◽  
Resistant Alloy ◽  
Corrosion Resistant Alloy ◽  
Girth Welds

Abstract Pipe internally clad or lined with corrosion resistant alloy (CRA) is used offshore when production fluid contains H2S and/or CO2 to protect the carbon-steel pipe from corrosion. Girth weld classification in standards such as BS7608 and DNVGL-RP-C203 do not specifically include clad and lined pipes but their fatigue performance is relevant to designers of these pipelines. This paper first reviews available literature on the in-air fatigue performance of clad and lined girth welds. Data from the literature as well as full scale resonance fatigue results from tests carried out at TWI are then analysed so that recommendations can be made on a suitable fatigue classification. Finally, areas are highlighted where more research into clad and lined pipe is needed.

Liner Wrinkling of Lined Pipe Under Compression: A Numerical and Experimental Investigation

2010 ◽  
Author(s):  
A. Hilberink ◽  
A. M. Gresnigt ◽  
L. J. Sluys
Keyword(s):  
Experimental Investigation ◽  
Carbon Steel ◽  
Mechanical Behaviour ◽  
Economic Design ◽  
Load Bearing ◽  
Corrosion Resistant ◽  
Resistant Alloy ◽  
Structural Capacity ◽  
Corrosion Resistant Alloy ◽  
Outer Pipe

A promising possibility to reduce costs in pipelines that require corrosion resistant alloys (CRA) is the use of lined pipe, consisting of a carbon steel load-bearing outer pipe that provides the structural capacity and a corrosion-resistant alloy (CRA) liner, protecting the carbon steel outer pipe from the transported corrosive product. The objective of the current research is to identify all variables that have an influence on the mechanical behaviour of lined pipe during bending and to determine their influence on this behaviour. The parameters that determine the resistance to pipe ovalisation and liner wrinkling are to be quantified, enabling safe and economic design of lined pipe for installation. This paper describes the approach and results obtained so far during the current research.

INCONEL ALLOY 22

Alloy Digest ◽  
2005 ◽  
Vol 54 (3) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Pitting Corrosion ◽  
Corrosion Resistant ◽  
Inconel Alloy ◽  
Resistant Alloy ◽  
Alloy 22 ◽  
Corrosion Resistant Alloy

Abstract Inconel alloy 22 is an advanced corrosion-resistant alloy with exceptional resistance to aqueous and pitting corrosion. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as joining. Filing Code: Ni-624. Producer or source: Special Metals Corporation.

INCO-WELD 725NDUR

Alloy Digest ◽  
1998 ◽  
Vol 47 (4) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Tensile Properties ◽  
Filler Metal ◽  
Heat Treating ◽  
Oil Exploration ◽  
Corrosion Resistant ◽  
Resistant Alloy ◽  
Corrosion Resistant Alloy

Abstract Inco-Weld 725NDUR filler metal is a corrosion-resistant alloy similar to Inconel Filler Metal 625 (see Alloy Digest Ni-327, December 1985) but with higher strength and hardness. Applications include the oil exploration down-hole equipment market. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as heat treating and joining. Filing Code: Ni-540. Producer or source: Inco Alloys International Inc.

ALLEGHENY LUDLUM AL 29-4C

Alloy Digest ◽  
1993 ◽  
Vol 42 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Exchangers ◽  
Power Plants ◽  
High Strength ◽  
Corrosion Resistant ◽  
Resistant Alloy ◽  
Corrosion Resistant Alloy ◽  
Geothermal Power

Abstract AL 29-4C is a highly corrosion resistant alloy with a relatively high strength. This combination allows the use of lighter gage tubes, and has led to its use in the brine heat exchangers of geothermal power plants. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming and joining. Filing Code: SS-554. Producer or source: Allegheny Ludlum Corporation.

Automatic Ultrasonic Inspection of Steel Catenary Risers with a Corrosion-Resistant Alloy Layer

2006 ◽  
Author(s):  
J. van der Ent ◽  
J. van Nisselroij ◽  
F. Kopp ◽  
A. Otter ◽  
N. Weli ◽  
...  
Keyword(s):  
Ultrasonic Inspection ◽  
Alloy Layer ◽  
Corrosion Resistant ◽  
Resistant Alloy ◽  
Steel Catenary Risers ◽  
Corrosion Resistant Alloy
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