Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

51314-3727-Corrosion Resistance of UNS S31803 Duplex Stainless Steel in Sour Environments

Picture for Corrosion Resistance of UNS S31803 Duplex Stainless Steel in Sour Environments
Available for download
Product Number: 51314-3727-SG
ISBN: 3727 2014 CP
Author: Sandra Le Manchet
Publication Date: 2014
$0.00
$0.00
$0.00
According to ISO 15156 / NACE MR0175 standard S31803 duplex stainless steel can be used up to 0.1 b H2S and 232°C/450°F regardless of the chloride concentration and the pH. These limits are based on past studies and are very conservative.The objective of this paper is to share some recent laboratory data dealing with Sulphide Stress Cracking (SSC) and Stress Corrosion Cracking (SCC) resistance of S31803 above these limits. Corrosion resistance of the duplex material was assessed in environments representative of formation waters containing up to 120 g/l chlorides at pH=4.5. Various H2S partial pressures were considered (0.5 to 1 b) as well as different testing temperatures (25°C/77°F 90°C/194°F and 150°C/392°F). Constant load and four-point-bend tests were performed using specimens coming from three industrial heats.Results revealed the strong influence of chloride concentration and temperature on S31803 corrosion resistance. It was also demonstrated that S31803 is resistant to SSC/SCC phenomena up to 0.5 b H2S which is significantly above ISO 15156 / NACE MR0175 requirements.Key words: Duplex stainless steel chloride temperature sulphide stress cracking stress corrosion cracking sour service
According to ISO 15156 / NACE MR0175 standard S31803 duplex stainless steel can be used up to 0.1 b H2S and 232°C/450°F regardless of the chloride concentration and the pH. These limits are based on past studies and are very conservative.The objective of this paper is to share some recent laboratory data dealing with Sulphide Stress Cracking (SSC) and Stress Corrosion Cracking (SCC) resistance of S31803 above these limits. Corrosion resistance of the duplex material was assessed in environments representative of formation waters containing up to 120 g/l chlorides at pH=4.5. Various H2S partial pressures were considered (0.5 to 1 b) as well as different testing temperatures (25°C/77°F 90°C/194°F and 150°C/392°F). Constant load and four-point-bend tests were performed using specimens coming from three industrial heats.Results revealed the strong influence of chloride concentration and temperature on S31803 corrosion resistance. It was also demonstrated that S31803 is resistant to SSC/SCC phenomena up to 0.5 b H2S which is significantly above ISO 15156 / NACE MR0175 requirements.Key words: Duplex stainless steel chloride temperature sulphide stress cracking stress corrosion cracking sour service
Product tags
Also Purchased
Picture for Modeling Localized Corrosion of Corrosion-Resistant Alloys in Oil and Gas Production Environments
Available for download

51314-3744-Modeling Localized Corrosion of Corrosion-Resistant Alloys in Oil and Gas Production Environments

Product Number: 51314-3744-SG
ISBN: 3744 2014 CP
Author: Andrzej Anderko
Publication Date: 2014
$0.00
Picture for Pipeline Corrosion Management; a Compendium
Available for download

51314-3723-Pipeline Corrosion Management; a Compendium

Product Number: 51314-3723-SG
ISBN: 3723 2014 CP
Author: Bijan Kermani
Publication Date: 2014
$0.00

This paper summarizes major elements of a recent recommended practice (RP) on Pipeline Corrosion Management (PCM) published by the European Federation of Corrosion (EFC). The RP goes into details on a methodical approach to carrying out PCM.
Picture for An Update on the Use of Duplex Stainless Steels in Sour Environments
Available for download

51312-01381-An Update on the Use of Duplex Stainless Steels in Sour Environments

Product Number: 51312-01381-SG
ISBN: 01381 2012 CP
Author: Thierry Cassagne
Publication Date: 2012
$20.00
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