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PWHT HOLDING TEMP. & TIME 1

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sarawana

Mechanical
Joined
Oct 10, 2020
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23
Location
IN
Dears frds,

pls clarify, How to find heat treatment of pwht holding temperature and holding time?
in material sa-516 gr 70(NACE+ HIC)


thanks & best regards,
saravana
 
Rd th Cde :)

The problem with sloppy work is that the supply FAR EXCEEDS the demand
 
HIC + NACE material would require some extra holding temp and time apart from the minimum requirements of the ASME BPVC code. Usually these requirements are given in a client material Specification. Please demand these specs from your client / process licencor/ EPC Contractor.

 
See:
NACE SP0472
NACE 8X194

Regards

 
Or, retain a professional welding engineer

"If you don't have time to do the job right the first time, when are you going to find time to repair it?"
 
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