NACE MR0175 - Normalised flange requirement

[BesantVarghees]

Is it mandatory to buy ASTM A105 flanges in Normalized condition to meet NACE MR0175 requirements? If yes, can someone explain me why? with references to MR0175

 

[SJones]

The standard does not demand that A105 be normalised. It demands that it has less than 1% nickel and that the hardness does not exceed 187 HBW.

The answer to Inquiry #2005-25 on page 30 might be helpful to you

http://isotc.iso.org/livelink/livel...c=ll&objId=3340364&objAction=browse&sort=name

Steve Jones
Corrosion Management Consultant

http://www.linkedin.com/pub/8/83b/b04

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