Anyone know where I could get some heat resistant material suitable for CNC?

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Matt Pritchard

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Oct 27, 2023, 5:00:08 PM10/27/23
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I need to make a ring with ID 63mm OD 84mm and 6mm thick.
It's for repairing an air compressor and needs to be stable at high temperatures. I tried Delrin and it melted :(
Looking at PEEK or Tufnol 10g/40, but will take other suggestions.
Cheap or free is preferable

James Taylor

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Oct 27, 2023, 5:06:19 PM10/27/23
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You Might be able to get an offcut of steel bar from somewhere?

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David Peat

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Oct 27, 2023, 5:19:01 PM10/27/23
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How high a temperature. When I used to work in cryogenics we used Peek for things upto about 200c. Tufnol we used on the superconducting magnet so only know from room temperature downwards. When we went up to 700c we would use mica but is brittle

frank mpps.biz

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Oct 27, 2023, 5:31:01 PM10/27/23
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Anyone know how to be removed from this group? not able to unsubcribe with repeated attempts. 

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Matt Lloyd

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Oct 27, 2023, 5:32:14 PM10/27/23
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