Best Stainless Steal for high temperatures and oxidative environment

[Brodusch]

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

 

[pradipgoswami]

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/Austenitic_High_Temperature_Grades_Datasheet.pdf

http://www.smt.sandvik.com/en/mater...sheets/tube-and-pipe-seamless/sandvik-353-ma/

http://www.bksteel.co.kr/2007/html/data/upfile/pro_file_1234938988.pdf

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

 

[EdStainless]

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

 

[Brodusch]

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

 

[EdStainless]

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

 

[arunmrao]

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-steels/ra-253-ma/en

 

[stanweld]

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

 

[Brodusch]

SS330 seams a good solution, with Higher Cr content than 310. Seams also available more easyly on the US-canada Market.

http://content.rolledalloys.com/technical-resources/alloy-comparison/RA330vs309-310_AC_US_EN.pdf

http://www.rolledalloys.com/alloys/nickel-alloys/ra330/en/