kingnero
Mechanical
- Aug 15, 2009
- 1,753
Looking for a document (preferably a standard or something with authority) that states under what conditions PWHT is necessary.
I'm not looking for experience or guidelines to be clear, I'm looking for codes or standards that states when PWHT is (or is not) necessary.
Probably 90% of our activities fall under ISO standards, but I haven't found anything there.
However, steel doesn't know if it's being welded in Europe, USA or anywhere else. So I'll take whatever references you might have.
FYI, ISO/TR 14745 (PWHT parameters) says:
This Technical Report does not specify when PWHT is required. Such requirements are given in product
standards, material specifications, or material data sheets.
That's the closest thing I have found.
No product standards or material specs under EN/ISO however gives this information - or I haven't been looking deep enough into it. All help or guidance is welcome!
I'm not looking for experience or guidelines to be clear, I'm looking for codes or standards that states when PWHT is (or is not) necessary.
Probably 90% of our activities fall under ISO standards, but I haven't found anything there.
However, steel doesn't know if it's being welded in Europe, USA or anywhere else. So I'll take whatever references you might have.
FYI, ISO/TR 14745 (PWHT parameters) says:
This Technical Report does not specify when PWHT is required. Such requirements are given in product
standards, material specifications, or material data sheets.
That's the closest thing I have found.
No product standards or material specs under EN/ISO however gives this information - or I haven't been looking deep enough into it. All help or guidance is welcome!