weldability 25Cr Dulex vs 13Cr Matensitic
weldability 25Cr Dulex vs 13Cr Matensitic
(OP)
which one more weldable: 25%Cr Duplex SS or 13%Cr Martensitic SS???
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weldability 25Cr Dulex vs 13Cr Matensitic
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RE: weldability 25Cr Dulex vs 13Cr Matensitic
Selection of filler metal is critical for either alloy in terms of matching suitable strength and the necessary corrosion resistance.
RE: weldability 25Cr Dulex vs 13Cr Matensitic
Metengr hit the big one. If you are using filler then selection of the filler is very critical.
= = = = = = = = = = = = = = = = = = = =
Corrosion never sleeps, but it can be managed.
http://www.trenttube.com/Trent/tech_form.htm
RE: weldability 25Cr Dulex vs 13Cr Matensitic
If you can use a ferritic 12-13% Chrome alloy like 405, 409 or 410S you may wish to to choose them based on cost and ease of welding.
If you are welding the dissimilar materials, a nickel base filler metal like E/ERNiCrMo-3 would be recommended.
RE: weldability 25Cr Dulex vs 13Cr Matensitic
These are strange alloy to compare.
The duplex is higher strength and better corrosion resistance. There is a big gap between these alloys in terms of properties and performance.
= = = = = = = = = = = = = = = = = = = =
Corrosion never sleeps, but it can be managed.
http://www.trenttube.com/Trent/tech_form.htm
RE: weldability 25Cr Dulex vs 13Cr Matensitic
These alloys have similar weldability to the duplex and superduplex stainless steels. PWHT is an option to reduce hardness and increase weld metal toughness. I would suggest further review of the following web site;
www.esab.com/ESABHtml/pdf/svetsaren/99.pdf
RE: weldability 25Cr Dulex vs 13Cr Matensitic
Thanks for the website. Agree that weldability of the duplex and and supermartensitic stainless will be comparable. Welding costs would favor the supermartensitic s.s (essentailly derivations of CA6NM) depending on toughness requirements.
RE: weldability 25Cr Dulex vs 13Cr Matensitic
Welding new stainless steels for the oil and gas industry
T G Gooch
TWI
Granta Park, Great Abington
Cambridge, CB1 6AL United Kingdom
Presented at Corrosion NACE Expo 2000, 55th Annual Conference and Exposition, Orlando, USA
26-31 March 2000
Steve Jones
Petroleum Development Oman LLC
Muscat
Sultanate Of Oman