Acceptable hardness limits of MAterials

[sakib321]

what is the hardness acceptable limits of ASME or EN materials

i have come to know via a ASME AI that there is a NACE standard for it but i have no idea of it
do any one have info about it ?

[qaisarabbas]

You should go thru the following link.

http://www.thepetrostreet.com/forums/vi ... p=482#p482

[arcpro]

NACE standards like MR0103 (Materials Resistant to Sulfide Stress Cracking in Corrosive Petroleum Refining Environments), MR0175 (Materials for use in H2S containing environments) does specify material requirements and they have to be followed only when client specify that the material to be used shall comply applicable NACE Standards.
Client / end user has to consider whether he wants to follow and get the material as per NACE or not. And yes NACE standards does specifically mention maximum hardness limits for all P.Nos. material to be used under certain corrosive service conditions.

[sakib321]

@arcpro i see the MR103 and i get hardness table limit
thanks for it

i think we would paste that table for reference of professionals?