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  1. Elephantine49er

    ACID ETCHING 300 Series Stainless Steel

    I have performed Nital/Ammonium Persulfate acid etching on Carbon Steels to verify removal of Arc Burns per ASME B31.4 and B31.8, but have never applied this technique to Stainless. Are these solutions detrimental to Austenitic Stainless such as 304 and 316L or would this be an appropriate...
  2. Elephantine49er

    ACID ETCHING 300 Series Stainless Steel

    thread177-122890 I have performed Nital/Ammonium Persulfate acid etching on Carbon Steels to verify removal of Arc Burns per ASME B31.4 and B31.8, but have never applied this technique to Stainless. Are these solutions detrimental to Austenitic Stainless such as 304 and 316L or would this be...

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