In such case is a repair called and then proceed as per the repair procedure (and added to the repair rate) or is the repair welder authorized to grind open the missed edge, MPI and then manually fill out, followed by a pull of the line so that weld is in the AUT bay and the touch-up/weld repair...
Sorry members, but the search function is malfunctioning when I tried to search for any previous threads on this topic.
Does excess weld root penetration lead to life-shortening of process pipework through turbulent flow conditions? Has this been studied and recorded?
I am looking at the...
Olympus-ims have made downloadable their books on Phased Array Ultrasonic testing on their website:
http://www.olympus-ims.com/en/pdf-library/
6 months ago I paid GBP 120 for the advanced book now its free. Fill yer boots!
Ignoring the obvious statement, i.e. an internally-lined pipe should not be subject to corrosion and therefore inspection pigging is superfluous, can anyone tell me the maximum thickness of inside lining for MFL pigging inspection. Has anyone any experience of this?
Thanks in advance
Nigel...
Rather than re-invent the wheel can anybody provide me with or point me in the direction of a comprehensive Inspection and Test Plan template for fabrication of a "typical" ASME VIII Div 1 pressure vessel.
Excel version would be superb.
Thanks
Nigel Armstrong
Karachaganak Petroleum
Kazakhstan
PWHT is approx 1 hour @ 650 deg Celsius on P1 (low carbon) steels. Is there a Code requirement (ASME/ANSI/API/EN/SNiP) that such NDT MUST be done after PWHT?
What do forum members think of a suggestion for NDT before PWHT only. If all unacceptable RT indications are repaired prior to stress...
Has anybody come across either of these methoods being used on AWS D1.1. structures, either alone or supported by Pulse-Echo? I dont have a copy of AWS D1.1 to hand - is there any mention of these methods in the spec?
Nigel Armstrong
Karachaganak Petroleum
Kazakhstan
We have air coolers on our plant (oil & gas) part of which consists of a row of 1 inch dia, 1,6 mm to 3,5 mm wall thickness duplex (22% Cr, UNS31803) tubes TIG welded with matching filler metal to an 8 inch duplex header (wt 11 - 18mm). Weld ferrite content range 35% - 65%.
I am no corrosion...
We have air coolers on our plant (oil & gas) part of which consists of a row of 1 inch dia, 1,6 mm to 3,5 mm wall thickness duplex (22% Cr, UNS31803) tubes TIG welded with matching filler metal to an 8 inch duplex header (wt 11 - 18mm). Weld ferrite content range 35% - 65%.
I am no corrosion...
