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Thanks for the input. I knew in the back of my head I was correct, just needed some reassurance. Thanks again!

I have a requirement for a project forthcoming in which our company would like to use the FCAW process. We have in Stock a piece of 16" Cr Pipe, S100 (1.031"w), SA335-P22 The coupon would be welded in the 1G (Rotated) position. We would like to run one coupon and split it half so that one piece...

An update on the progress of this project. The first section had approx. 94 - 3" XXH Buttwelds, 3-2.5" XXH BW's and 2 - 2" XXH BW's all of which was 2.25% Cr. We RT'd the first 5 from each welder (5 welders) and then RT'd 5% thereafter from each welder. This preliminary radiography resulted in...

metengr, Thanks, I really appreciate the info. I just breezed right over the paragraph. Humbug

B31.1 requires a pwht temp. of 1200-1300F for P4 material while B31.3 requires a pwht temp. of 1300-1375F for the same. We have a WPS qualified w/ pwht and its utilizes the 1300-1350F temp. Can we back this up somewhere in B31.1 to use this procedure? I was thinking since we are under the Lower...

In an effeort to cut out costs our estimating dept. wants to eliminate the NDE budget for performing radiograhpy before PWHT. By B31.1 NDE is required after PWHT for the P4 material group. I am not a big fan of this but in an effort to win more projects I can understand the thinking. We...

Just remember the temperature is based upon Design T not Operating T. In your case: 10" NPS, "DESIGN" Conditions of 200F @ 2000 PSI These welds would not require radiography per the B31.1 requirements. Customer spec's may require RT though. If I were the customer then there would be some...

Gentlemen, The referenced paragraph in B31.3 states that each welders work must be represented. That does not neccessarily mean that it is 5% of each welders work. With that you could have one or two welders have the majority of the required radiographs and have the balance of the welders only...

Is there a formula to use when performing a "Hot Pull" on piping that has been installed? We have a 30" x 1.125" x 32' +/- Carbon Steel piping that needs to move approx. 1" in the horizontal directional. (This 30' run turns with a 90°ell and continues for apporx. 60'...

Bellzinc, Is this a field constructed Condenser? I believe that most condensers are also constructed with design factors as found in HEI (Heat Exchanger Institute) If, so: Take a look @ HEI 9th Edition. Check Section 8, specifically 8.1.4.1 Condenser Shell. This should provide you with the info...

Some different views would be greatly appreciated. ASME Code B31.1 Boiler External Piping B31.1 Para 137.2.1 allows the joints to be covered with an extended holding time and prior agreement of the parties involved. Para 137.3.1 states that for BEP piping it shall be tested in accordance with...