FAQ's

Are UNS C72900 and C96900 NACE MR0175 approved?

Because UNS C72900 and C96900 are copper alloys, are they, by definition, covered by NACE MR0175/ISO 15156-3, A.12 which basically states copper alloys are suitable for use without restriction other than as noted in the footnote, which informs the user that such materials may exhibit accelerated general weight-loss corrosion in some sour environments?

Answer:

Yes, the UNS C72900 and UNS C96900 copper alloys are included in NACE MR0175/ISO 15156-3, A.12.

This question is in relation to NACE MR0175/ISO 15156-3 A.12

Reference: ISO 15156 Maintenance Panel Inquiry #2003-21

 

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