How to determine material group in NACE MR0175 ?

[rQuestionEngineering]

How to determine material group in NACE MR0175 ?

Supplier stated ASTM A350 LF2 fit for NACE sour service.
Upon checking in table A.1 , there was no information.
There was also no equivalent UNS number for A350 LF2 .

How to cross check information given by this supplier and confirm it is NACE compliant ?

 

[Dhurjati Sen]

Ask the supplier to provide equivalent material for A350 LF2.
Else, use your judgement.

DHURJATI SEN
Kolkata, India

 

[SJones]

Upon checking in Table A.1

In which part of the document. Part 2 for carbon steels doesn't use UNS numbers, and Table A.1 is for welds.

For carbon steel, you check for compliance by reviewing the inspection documents and verifying that the chemical composition, and the hardness measurements made on the material meet the acceptance criteria.

Get yourself some help.

Steve Jones
Corrosion Management Consultant

http://www.linkedin.com/in/drstevejones

All answers are personal opinions only and are in no way connected with any employer.