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...
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...
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'...
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...
