Wednesday, October 19, 2011

Re: [MW:12717] RT Required for Pipe to WNFF

Hi,

As per UW-11 (a) (4), Nozzles exceeding 10NPS shall be radiographed, please find attached table for ease of reference:-
      
Regards
Manpreet Singh


From: Karthik <karthik6684@yahoo.com>
Sent: Wed, 19 Oct 2011 01:03:53
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Subject: Re: [MW:12698] RT Required for Pipe to WNFF
Hi,
Please find below the extraction from ASME Sec.VIII,Div.1 - UW11.
UW-11 RADIOGRAPHIC AND ULTRASONIC
EXAMINATION
(a) Full Radiography. The following welded joints shall
be examined radiographically for their full length in the
manner prescribed in UW-51:
(1) all butt welds in the shell and heads of vessels
used to contain lethal substances [see UW-2(a)];
(2) all butt welds in vessels in which the nominal
thickness [see (g) below] at the welded joint exceeds 112
in. (38 mm), or exceeds the lesser thicknesses prescribed
in UCS-57, UNF-57, UHA-33, UCL-35, or UCL-36 for
the materials covered therein, or as otherwise prescribed
in UHT-57, ULW-51, ULW-52(d), ULW-54, or ULT-57;
however, except as required by UHT-57(a), Categories B
and C butt welds in nozzles and communicating chambers
that neither exceed NPS 10 (DN 250) nor 118 in. (29 mm)
wall thickness do not require any radiographic examination;
 
Thanks & Regards,

(Karthik)

Karthikeyan.S
QA/QC Manager
Getabec Energy Co.,Ltd.
379,Moo6,Soi8,Nikhomphatana,
Rayong-21180,
Thailand.
Phone: 0066 38 897035-8 (Off)
Fax: 0066 38 897034
Hand Phone: 0066 892512282

From: karthick enigoo <karthickenigoo@gmail.com>
To: materials-welding@googlegroups.com
Sent: Saturday, October 15, 2011 5:44 PM
Subject: [MW:12681] RT Required for Pipe to WNFF

Dear Friends,
 I need a clarification regarding, Pipe to Flange (Weld Neck). As per my drawing Design As per ASME Sec viii, Joint efficiency - 1, Radiography - Full & PWHT considered. Size of nozzles 80NB, 350NB & 500NB Sch 60. Radiography need to be done for all nozzles. 

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Thanks & Regards,                                                    
D. Karthick
Ph.No: +91-9787300898

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