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PWL#121B
Mid Month Bulletin No.89
16 September 2013

PWL#121B - Bulletin No.89 - Resources on Duplex Stainless Steels, Primer, How to Weld, Best Welding Practices, Welding Tips, Practical Guidelines for Fabrication, Using Duplex, Machining, Performance Guide, Qualification, Cost effective, Sigma phase and more...

Mid September Bulletin

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Introduction A thorough treatment of welding Duplex Stainless Steels (DSS) is found in AWS Welding Handbook Ninth Edition, Vol. 4 - Materials and Applications, Part 1, pages 351-368. The subject of this Bulletin was dealt with in an Article on Duplex Stainless Steels - Best Practices for Selection and Welding, published (2) in the last issue of Practical Welding Letter for September 2013. Click on PWL#121 to see it. Following a feedback message from a kind reader, we are preparing a thorough follow up note, to be published in the next issue of practical Welding Letter for October 2013. It will include description and reference standards for additional testing to be used for qualifying Duplex Stainless welding Procedures. Also to be used for validating current welding operations against results documented in Procedure Qualification Records (PQR). As promised in the article, we publish here a list of knowledgeable Online Sources likely to provide to our readers useful insight and information on the subject. If the sources are commercial companies, no endorsement or recommendation of their products is intended. Interested readers are urged to check on their own if any of the manufacturers' recommendations is worth their attention for their specific circumstances. The addresses reported hereafter were live and correct at the time of their publication. There is no guarantee that they will always be so, because they are administered by the sources themselves and are under their control. Note: References to articles or other documents are given here in one of two forms. If the links are "live" (usually underlined or otherwise highlighted) they are operated with a click of the mouse. If they are URL's (Uniform Resource Locator), which is the analogue of an address, they begin with "http://..." or "www.". These are not live and must be copied and pasted entirely into the browser (after having selected them with the mouse or otherwise). If they are long they may be displayed in two or more lines. In that case one has to care that the URL be copied completely in a single line without any space, and Enter. If the information is important to you, you may save the selected pages in a suitable folder on your Computer for easy reference. You are welcome to forward this page to those of your friends who may profit of this information.

Resources

Fig. 1 - Microstructure of base metal duplex stainless steel, 2205 250X original magnification. Austenite phases are present as white island in blue sea of ferrite. [From Corrosion Testing Laboratories] http://www.corrosionlab.com/met.htm

Duplex stainless steel - Part 2
http://www.twi.co.uk/technical-knowledge/job-knowledge/duplex-stainless-steel-part-2-106/

Duplex Stainless Steels: Part One
http://www.keytometals.com/page.aspx?ID=CheckArticle&site=kts&NM=208

Duplex stainless steels
http://www.gowelding.com/met/duplex.html

Welding tips for Duplex Steels
http://www.weldreality.com/Duplex.htm

Avesta Welding - How to weld duplex Stainless Steels
http://www.avestawelding.com/4972.epibrw

Practical Guidelines for the Fabrication of Duplex Stainless Steels Brochure
http://www.imoa.info/Duplex_Stainless_Steel_2d_Edition.pdf
[In the IMOA Page, left column, New Publications,
click on the Language of the Title here above]

Duplex Stainless Steel
http://www.imoa.info/moly_uses/moly_grade_stainless_steels/duplex_stainless_steel.php

Fig.2 - Duplex Stainless Steel Welded with Nitronic 50 [From http://www.france-metallurgie.com/index.php/category/metallurgistes/ ] (Credit Photo @ Rich Tenaglia – EWI)

Practical Guide to using Duplex Stainless Steel (11 pages) (Download from:)
http://www.nickelinstitute.org/en/TechnicalLiterature/Technical%20Series/PracticalGuideForUsingDuplexStainlessSteel_10044_.aspx

Welding Practice for the Sandvik duplex stainless steels
[Download from the following page]
http://pdf.ebooks6.com/Welding-practice-for-the-Sandvik-duplex-stainless-steels-SAF-2304-pdf-e6143.pdf

Welding Practice for the Sandvik Duplex Stainless Steels SAF 2304,
SAF 2205 and SAF 2507 (Presentation - 42 slides)
http://www.wpsamerica.com/library/Welding%2520Duplex%2520Stainless%2520Steel.ppt

Machining stainless steels
http://www.smt.sandvik.com/en/products/bar-and-hollow-bar/bar-steel/machining-stainless-steels/?show=share-by-mail

Duplex stainless steel
http://www.smt.sandvik.com/en/products/tube-pipe-fittings-and-flanges/high-performance-materials/duplex-stainless-steel/

Corrosion of Duplex Stainless Steels in Seawater (13 pages)
tools.outokumpu.com/spt/pub/upload/acom_10292653.pdf

Duplex Stainless Steel for storage tank (8 pages)
http://www.outokumpu.com/SiteCollectionDocuments/Duplex_for_Storage_Tanks-brochure.pdf

Welding of Austenitic & Duplex Stainless Steels - Overview
(Presentation - 36 slides)
www.scottish-enterprise.com/~/media/SE/Resources/Documents/WXYZ/Welding-of-Austenitic-and-Duplex-Stainless-Steels-Overview-Backhouse-Outokumpu.ashx

Duplex Stainless Steels, a review after DSS '07
http://www.aperam.com/uploads/stainlesseurope/TechnicalPublications/Duplex_Maastricht_EN-22p-7064Ko.pdf

Duplex Stainless Steels - A Simplified Guide
http://www.bssa.org.uk/topics.php?article=668

Sustainable Duplex Stainless Steel Bridges - International Stainless
[Download from:]
http://www.sustainablestainless.org/app/show/203

Stainless Steel World - Duplex [Downloadable articles]
http://stainless-steel-world.net/duplex/index.aspx

Duplex Stainless Steels - Fabrication & Welding
http://stainless-steel-world.net/duplex/ShowPage.aspx?pageID=12

Duplex Stainless Steels Welding - Best Practices
stainless-steel-world.net/pdf/ssw_fluor_lr.pdf

Alloy Performance Guide (20 pages)
http://content.rolledalloys.com/technical-resources/other/Alloy-Performance-Guide.pdf

Duplex Stainless Steels, a Cost Effective Option for Biofuel Facilities
(24 pages)
http://content.rolledalloys.com/dotAsset/8c2f81f8-66a5-45b3-9297-eb4cdc8f8906.pdf

Duplex stainless steel (Presentation - 39 slides)
www.steeltank.com/Portals/0/docs/Grocki%20Duplex.pdf

A Primer for Duplex Stainless Steels (Presentation - 51 slides)
http://www.steeltank.com/Portals/0/Pressure%20Vessels/SSWseminarOct2012/4%20A%20Primer%20for%20DUPLEX%20%20Corrosion%20Solutions%20presentation.pdf

Check Amazon Toys and Games

Pressure Vessel and Tank Fabrication Using Stainless Steels
(Downloadable Brochures and Videos)
http://www.steeltank.com/FabricatedSteelProducts/PressureVessels/PressureVesselTankFabricationUsingStainless/tabid/555/Default.aspx

Duplex Stainless Steel
http://www.stainless-steel-tube.org/duplex.htm

Duplex Stainless Steel (12 pages)
www.spiusa.com/Ref001/1008EN-GB4_Duplex.pdf

Duplex Stainless Steels: Brief History and Some Recent Alloys
www.benthamscience.com/meng/samples/meng%201-1/Alvarez-Armas.pdf

Welding duplex stainless steel the ESAB way (8 pages)
www.esab.com/gb/en/support/upload/Duplex-Stainless-Steel.pdf

Duplex Stainless Steel Selector Guide (Download Brochure from:)
http://www.esabna.com/us/en/education/knowledge/fillermetals/Duplex-Stainless-Steel-Selector-Guide.cfm

LESSON V - 5.9 Duplex Stainless Steels (Turn Pages using arrows)
http://www.esabna.com/EUWeb/AWTC/Lesson5_16.htm

ASTM A1084 - 13
Standard Test Method for Detecting Detrimental Phases in Lean Duplex Austenitic/Ferritic Stainless Steels
http://www.astm.org/Standards/A1084.htm

Qualification of welding procedures for duplex stainless steels (6 pages)
www.complianceonline.com/images/supportpages/500768/sample_0402-29.pdf

Sigma phase precipitation in duplex phase stainless steels (2 pages)
www.ysesm.ing.unibo.it/Abstract/57%20Dyja.pdf

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