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  1. dz63

    Staining of CF3M (316L Cast) Stainless Steel

    Thanks EdStainless - So, if I understand correctly, you suspect that the discoloration is due to re-embedded particles rusting during the autoclave process - yes? Using a buffing compound greatly increases the problem as it traps a lot of debris into the surface of the stainless steel? I was...
  2. dz63

    Staining of CF3M (316L Cast) Stainless Steel

    The part was polished using a combination of sanding belts, flap wheels, and buffing wheels with abrasive compound. Iron contamination from the polishing process is a possibility, but it seems unlikely as the above tools are dedicated to only stainless steel polishing. Is it possible that the...
  3. dz63

    Staining of CF3M (316L Cast) Stainless Steel

    After autoclave sterilizing a mechanically polished cast CF3M (316L) stainless steel part with steam at 121C for 25 minutes and drying under vacuum for 30 minutes, I observed a discoloration of the stainless steel. Click on the link to see the discoloration...
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