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  • Users: semmaker
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  1. semmaker

    Fluorine outgassing from PTFE

    I am using PTFE coated wires in a vacuum system. It is being baked to 200 C to facilitate getting the proper vacuum level. I have an SRS residual gas analyzer for monitoring the system. After the 20 hour bake I see the RGA head is contaminated with F. Does anybody know the temperature at...
  2. semmaker

    Magnetic properties of Hastelloy C276

    I'm having trouble finding information regarding the magnetic properties of Hastelloy C276. Anybody know where I can look to find it? Thanks for any help.
  3. semmaker

    Magnetic permeability of 430 SST

    Does anybody have any personal experience or source of information on heat treatment of 430 to maximize permeability? I will be making a vacuum chamber from 6" diameter 430. The material will be heavily machined and welded and I plan to anneal it to remove any magnetic hot spots. Any...

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