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When writing a prequalified WPS, I'd like to list Group 1 to Group 1, rather than list the specific ASTM # of the materials, in order to reduce the # of WPSs that I need to create. Is this allowed per AWS D1.1? I haven't found anything in the code that restricts this? Thanks, jimwaa

I remember an old standard for the preservation and storage of process equipment from many years ago. I believe it was API or ASME. Does anyone remember what its called or where to get it? It addressed the long term storage of pumps, compressors, gear boxes, heat exchangers, etc. Please help...

Does ASME Section 1 comment/require/consider corrosion allowance for calculating wall thicknesses?

On the topic of P91. We are planning on installing gamma plugs which will require a 3/8" seal weld around the plug. After the seal weld, we plan on PWHT. If we PWHT a couple of times, what effect does this have on the material? Should this be avoided?I haven't seen anything in B31.1 that would...

After 2 Hours of Bakeout, should it be dropped to 194 F at a controlled rate? What rate of cooling? Or Should it be air cooled to room temp from 450F, uncontrolled? jimwaa

I'm trying to create a procedure for welding P91. I can't find any method to calculate the "bake-out" temp and time. I figure the temp will equal the preheat temp. Here is a quote from Robert Swanekamp, PE, HRSG User's Group. "A post-weld hydrogen bake, at 600 F for a minimum of 20 minutes...

I'm looking for codes & paragraphs that require impact testing. (example: ASME B31.3, para. 323.3)?

No, its not too late. Please comment away.

Is B31.3 a law or suggested best practice?

Yes we have a WPS and PQR for this WPQ test. I asked our AI about the issue and he approves the WPQ test. Thanks for the tips.

Is there a good system, standard, or publicaion for QA/QC in Construction? ISO 9000 doesn't help me much in this area. Thoughts?

Is there a good system, standard, or publication for Industrial Construction QA/QC? ISO9000 doesn't seem to help me in developing a Construction QA/QC program. Thoughts?

I've been asked to develop a quality control system for the survey of a construction site. Is there any method or publications that are being used for Survey QA/QC?

We are standardizing our WPQ testing to: Process: GTAW/SMAW (GTAW root & interpass, SMAW Cap) Fillers: F6 and F4 Position: 6G Base Material: P-1 to P-1, Pipe Size: 2" Sch. 80 This seems to create a very wide range of welding variables. Would an AI disagree with using this WPQ for a GTAW...

If a welder is qualified to a P-1 material, are they qualified to any other P-No.? (Such as P-8)