I am looking at using an existing PQR that was qualified with Inconel 625 filler, and writing a WPS for inconel 82 filler. The only thing I see that might keep me from doing this is this essential variable for A#. However, QW-404.5 states that it is only applicable to ferrous metals. Neither...
We have a situation where we have butt welded two pieces of 12" Sch 140 (1.125" nom wall) SA 335 P91 CMS pipe. Preheat temperature was held at 400 degrees F until completing the joint. However, after completing the weld it was aloud to cool to ambient temperature. Generally, we would have...
I need to qualify a welding procedure in accordance with Section IX, with the supplementary essential variables for Charpy impact testing as required by ASME B31.3.
The base material is 304 SS, with production material thickness ranging from 0.500" to 1.000" in thickness. This is for...
I asked this is question under the mechanical code issues forum. I appreciate the one response I got; however,I was hoping for some more input.
We often butter P1, P4, P5A and P5B base materials when welding them to P8 material to avoid PWHT (of the final joint) of the P8 material. When the...
We often butter P1, P4, P5A and P5B base materials when welding them to P8 material to avoid PWHT (of the final joint) of the P8 material. When the design temperature is significantly high, we use Inconel to butter, then heat treat, and then use Inconel filler for the final joint. We currently...
