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Best Stainless Steal for high temperatures and oxidative environment

Best Stainless Steal for high temperatures and oxidative environment

Best Stainless Steal for high temperatures and oxidative environment

(OP)
Hi,

I have a very specific application at high temperature (900C) in a very high oxydative atmosphere, in copper industry. We use the 310 for decades and it seems the best SS for this. Do you know if there is a possible alternative in stainless steels with higher resistance to oxidation, better than the 310? Does the 310L should be best than 310?

I read different topics, 310 stainless steel is largely used for high temperature applications in metallurgy processes, 316 being a possible alternative (lower Cr amd Ni but low C), 309? 409?


Thank you in advance for your help and advises.

________________________
Ludovic Brodusch
Metallurgy Ing.Jr. M. Sc. A.
Montreal, Canada

RE: Best Stainless Steal for high temperatures and oxidative environment

Ludovic,

You may explore Outokumpu/Sandvik-353MA for such high temp service in highly oxidising environments.All these manufactures are well represented in Canada.
See the datasheets below.

Thanks.



http://www.outokumpu.com/SiteCollectionDocuments/A...
http://www.smt.sandvik.com/en/materials-center/mat...
http://www.bksteel.co.kr/2007/html/data/upfile/pro...

Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
Ontario, Canada.
ca.linkedin.com/pub/pradip-goswami/5/985/299


RE: Best Stainless Steal for high temperatures and oxidative environment

there are a lot of high temp alloys.
Is oxidation the only degradation mechanism?
310 will be clearly superior to 316, 309, and low Cr ferritics like 409.
You can get a little improvement with a high Cr ferritic like 439.

In order to see significant improvement you will need to look at alloys like 600, 601, 333 and other Ni based alloys.

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Plymouth Tube

RE: Best Stainless Steal for high temperatures and oxidative environment

(OP)
Thank you for these very usefull information.

Yes the main degradation mecanism is oxidation (1000C, not dry - burner flamme + O2 addition).

Do you know where I could find comparative data for the 439, 446, 600, 601, 333?

I was told the 436 could be an alternative? What do you think?

_____________________________
Ludovic Brodusch , Ing. Jr. M. Sc. A.
Montreal, Canada

RE: Best Stainless Steal for high temperatures and oxidative environment

You need a couple of books.
A good place to start is "High Temperature Corrosion of Engineering Alloys, George Lai, ASM, ISBN:0-87170-411-0

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Plymouth Tube

RE: Best Stainless Steal for high temperatures and oxidative environment

Have you tried looking at Rolled Alloy products. They will certainly have a solution . I see one of their products RA253 a good substitute for the existing 310 grade.

http://www.rolledalloys.com/alloys/stainless-steel...

RE: Best Stainless Steal for high temperatures and oxidative environment

Fecralloy and Nicralloy have very high oxydation resistance at 1000C.

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