Menu
Search
Filters
Close
Menu

09075 Qualification of Lean Duplex Grade Ldx 2101 (UNS32101) for Carcass Material in Flexible Pipes

Picture for 09075 Qualification of Lean Duplex Grade Ldx 2101 (UNS32101) for Carcass Material in Flexible Pipes
Available for download
Product Number: 51300-09075-SG
ISBN: 09075 2009 CP
Author: Jonas Gudme and Torben Steen Nielsen
Publication Date: 2009
$0.00
$20.00
$20.00
Unbonded Flexible pipes have inner armour of stainless steel made from a helix structure of an S-shaped continuous strip. Typically the selected stainless steel grade has been AISI 316L (UNS S31603). The recent development of lean duplex materials has provided attractive alternatives due to the increased strength, good corrosion resistance and lower cost.

The carcass in an unbonded flexible pipe is exposed to the conveyed fluid or gas but protected from marine seawater surroundings. This paper describes acceptance criteria for autoclave testing in CO2 / H2S environments. Observations are made on initiation of pitting and selective corrosion on LDX 2101 (UNS S32101). Results from both short and long term tests are evaluated in order to validate an acceptable duration for autoclave testing.

Key Words: flexible pipe, carcass, lean duplex stainless steel, autoclave testing, acceptance criteria.
Unbonded Flexible pipes have inner armour of stainless steel made from a helix structure of an S-shaped continuous strip. Typically the selected stainless steel grade has been AISI 316L (UNS S31603). The recent development of lean duplex materials has provided attractive alternatives due to the increased strength, good corrosion resistance and lower cost.

The carcass in an unbonded flexible pipe is exposed to the conveyed fluid or gas but protected from marine seawater surroundings. This paper describes acceptance criteria for autoclave testing in CO2 / H2S environments. Observations are made on initiation of pitting and selective corrosion on LDX 2101 (UNS S32101). Results from both short and long term tests are evaluated in order to validate an acceptable duration for autoclave testing.

Key Words: flexible pipe, carcass, lean duplex stainless steel, autoclave testing, acceptance criteria.
Product tags
Also Purchased
Picture for Laboratory Test to Evaluate Lean Duplex UNS S32101 and UNS S32304 Flexible Pipe Carcass at Sour Serv
Available for download

51317--9622-Laboratory Test to Evaluate Lean Duplex UNS S32101 and UNS S32304 Flexible Pipe Carcass at Sour Service

Product Number: 51317--9622-SG
ISBN: 9622 2017 CP
Author: Merlin Bandeira
Publication Date: 2017
$20.00

The aim of this test program is to provide technical data to support the replacement of austenitic flexible pipe carcass, at Campos Basin, by low cost materials with suitable mechanical properties and corrosion resistance when the field conditions turn too aggressive to carcass materials in operation.
Picture for Corrosion Resistance of the Lean Duplex Material UNS S32202 for Oil and Gas Applications
Available for download

51315-5539-Corrosion Resistance of the Lean Duplex Material UNS S32202 for Oil and Gas Applications

Product Number: 51315-5539-SG
ISBN: 5539 2015 CP
Author: Sandra Le Manchet
Publication Date: 2015
$0.00
Picture for Investigation of the Stress Corrosion Cracking Behavior of Duplex and Lean Duplex Stainless Steel Pa
Available for download

51316-7325-Investigation of the Stress Corrosion Cracking Behavior of Duplex and Lean Duplex Stainless Steel Parent and Weldment Materials in Sour Service

Product Number: 51316-7325-SG
ISBN: 7325 2016 CP
Author: Chong Li
Publication Date: 2016
$20.00

Lean duplex stainless steel (LDSS) can provide mechanical properties similar to that of duplex stainless steel (DSS) and is less expensive. The focus of this work was to assess the stress corrosion cracking (SCC) and SCC susceptibility of DSS and LDSS in chloride-containing sour water conditions.

 
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support