ASME IX and API both are diff. in term of application.
asme for PV and API for pipe line.
if you aer working on pipe line project 31.5 and 31.8 u shuld refer
API for WPS and PQR etc...welding details..
and if u wrokin in PV then asme IX for WPS/PQR etc...
i hope thi would clear.
regards,
mohd.
On Jun 15, 8:51 pm, prafull vyas <prafull_vy...@rediffmail.com> wrote:
> Dear sir,
> i have queery regarding procedure qualification related to heat input
> as
> this querry is related to welding of API pipes:
> As per api 44th edition anx D says when ever their is a daviation of
> heat input more than 10% YOU HAVE TO GO FOR NEW PROCEDURE
> QUALIFICATION.
> AND asme section XI 2010 says QW-409.1: when ever there is increase in
> heat input more then qualified you have to go for new procedure
> qualification.
> BOTH API 44TH EDITION AND ASME SECTION IS CONFUSING WHAT IS MUST TO
> FOLLOW.
> what this increase means AS PER ASME SECTION IX ,IS IT the heat input
> recorded while qualifing procedure?
> is this saying when ever you cross the heat input limit beyond the
> recorded heat input value when you are doing pqr you have to go for a
> new pqr?
> so if this is the maximum heat input value than it is must to show
> this max heat input in wps also.
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