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Thickness range

Thickness range

Thickness range

(OP)
Hi Guys
Maybe you can clarify. When using ASME IX and we are requiring CVN testing. Am i right in saying we go to B31.3 where the thickness range is T/2 to T + 1/4 inch. And not the thickness range specified in ASME IX

RE: Thickness range

If you use IX, follow all provisions of IX, unless only if B31.3 has more stringent requirements.

RE: Thickness range

(OP)
Hi Biginch
So as per ASME B31.3 para 323.3.1 below applies when Charpys required - Correct
material thickness from T/2 to T + 6 mm

RE: Thickness range

If you use the code of construction, such as B31.3, all welding requirements are followed based on code book section requirements. Section IX is a service code book section that provides requirements for how to qualify a WPS and welder performance. If Section IX is referenced, all requirements are followed in Section IX UNLESS specific requirements are provided by the code book section.

RE: Thickness range

merlin,
Yes, you are correct.
Cheers,
DD

RE: Thickness range

(OP)
Guys
Thanks. I just wanted a simple answer. Thanks DekDee

RE: Thickness range

Yes provided the WPS must be referenced to an applicable code ASME B 31.3 in addition to ASME Sec IX.
Always follow the construction code requirements.

Regards,
ISHACK M

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