Thanks for all of your help. I think we settled on 601 or 230, whichever price/availability work out for.
Just for your knowledge, Ar will be inside the container too. The only other substances the metal will come in contact with are silica tubes on the inside and alumina tube on the outside.
We are going to cycle between room temp and 1000 deg C. I am not very worried about oxidation because there will be an inert argon atmosphere. What worries me about the integrity of the alloy is sensitization as they will be cooled at 1-5 deg C per hour in the key temperature range 500-800 deg...
I am making a high temperature furnace liner that will house fused silica tubes. This is necessary as the glass tubes can sometimes blow up. The furnace will operate at a maximum of 1000 deg C and be slow cooled (1-5 deg C/hr) to room temperature. We are going to flow an argon atmosphere over...
