Dear,
Which CAESAR II 2014 version and build are you using?
From other post answered by Richard:
The quickest way to resolve this is to compare the data in the database with the applicable Piping Code. Be aware that v.6.10 addresses specific Editions of the Piping Codes, and subsequent Code Editions may have changed some of the data.
If you find a difference, you can always use the Material Database Editor to modify the values in the database.
Regards,