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Best stainless steel/finishing to handle molten NaCl

our thesis team is thinking about suggesting the use of molten NaCl as a thermal energy storage liquid (applications in cheap heating for winter/other energy storage possibilities). my question is what grade of stainless steel would be best to use (for piping, storage, contact with molten salt, etc.) if the molten salt were to have an average temperature between 850 °C and 1050 °C?

we are still in the planning stage and are very cautious about proceeding with any plans because of the obvious dangers. your advice and scientific wisdom will be greatly appreciated. your learned opinions on the practicality and plausibility of this project is also very much welcome. Thank you and God bless you all.

Johnny Wilks
student - Singapore
August 26, 2008

You better go to several of the high nickel alloy foundries for this answer. I seriously doubt if "normal" SS's would work. How are you going to insulate the pipes?
What is your heat source going to be to get it that hot? (that is cheap)

James Watts
- Navarre, Florida
August 29, 2008

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