Search results for query: *

Thanks guys, I appreciate the replies.

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...

Metengr, Yes, the code PWHT will still be delayed so the bake out will be necessary. Thanks again for the help.

To be on the safe side we are going to grind out the welds, bevel again, weld it up again and perform the bakeout before PWHT. Thanks for all of the input.

This part will be radiographically examined after PWHT per code anyhow. I don't have any problem doing it an additional time before the PWHT. However, I am curious what happens below 200 F that makes this irreversible so to speak. In other words, why can the hydrogen be released by holding...

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...

Metengr- You have helped answer a few of my questions before, and I generally believe the advice you gave was correct and helpful. But, I have to respectfully disagree with you on this one. When writing a WPS in accordance with Section IX the user is only required to follow the...

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...

Thanks for your input. Does anyone else have an opinion. Any Section IX welding experts? I would like as much input as possible. Thanks.

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...