Saturday, September 4, 2010

Re: [MW:6860] Re: PQR according to ASME section IX

Dear Herman Pieper
 
You have to qualify the welders as per QW452.3 to qualify diameter.  If a welder qualified on a plate he is allowed to weld on palte as well as  pipe over 24 inch diameter.  For below 24" dia. he should be qualified as per QW 452.3.  please refer QW 461.9
 
Thanks & Best Regards.
 
John Abraham.
 
On Fri, Sep 3, 2010 at 1:06 PM, hpi001 <pieper-qsi@kpnmail.nl> wrote:
What about the Welder Qualification? If welder has made a
qualification in plate according to ASME IX is it allowed to weld
pipes as well, if so from which diameter he is certified? and in which
paragraph can I find this in the rules. Because there is nothing
mentioned in QW 452.3 about this.

Best Regards,

Herman Pieper

On 3 sep, 11:43, hpi001 <pieper-...@kpnmail.nl> wrote:
> Dear All,
>
> I'm preparing some WPS documents for procedure qualifications and
> production documentation according to ASME section IX. In my opinion a
> procedure qualification made in plate is also valid for pipes
> according to ASME section IX as long as the essential variables are in
> range of the specification, but can anyone tell me the paragraph where
> this is mentioned in the rules? Welding process is PAW but this in my
> opinion is also not an essential variable for diameter qualification.
>
> Thanks in advance.
>
> Herman Pieper

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