Dear Friend,
Some issues like this are related to project spec. Probably in each project we don't have just one or two simple joints, so it has to be defined in welding and inspection procedures. If it is not applicable for your project (you didn't predict repair situations) you can use repair PQR (something like a production test) which is repaired similar to the actual repair and then qualify this coupon. (You can see DNV OS-F101 for better understanding).
Regards
On Wed, Sep 24, 2014 at 2:48 AM, TDK YOKESH <tdky167@gmail.com> wrote:
Well , is there any supporting document ? Because there is been a situation where a 30" pipe , 31.75WT pipe RT ( R2 ) was rejected as it had 4mm slag and had to be cut out . The production /execution don't want to cut out but repair it . So practically , performing a cut out for 4 mm slag is necessary ? In order to convince the client I need to produce supporting document .Thanks and RegardsTDK Yokesh--On Tue, Sep 23, 2014 at 3:48 PM, S.Mohammed <mohd52100@gmail.com> wrote:As good engineering practice and keeping joint integrity in place
for high pressure line - 1 time ..after cut out.
low pressure maximum 3 times.
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M. Shokri Arfaei
ISA-ISTS - Metallurgy Lab. Manager
ASNT NDT Level III
International Welding Engineer
Tel.: +98 21 66282127
Fax: +98 21 66282779
Mob.:+98 912 1394023
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