Letter 32027

What metal to resist corrosion in vaporized sodium?  

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I have a design issue where vaporized sodium (Na) at 700 - 800C, is flowing in a vacuum. I would like to have a recommendation as to the material that will provide suitable corrosion resistance for this service. I know that 316SS is used for the liquid metal reactors. However here we have considerably higher temperatures, a vacuum, and vaporized sodium.

Brian Thurgood
Consultant - San Diego, CA, US

Try asking Southern California Edison what their experience was at their (now de-commissioned) Daggett Solar-Electric plant.

Tom Gallant
- Long Beach, CA, USA

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