This is considering grinding and filing and all prep. How many welds can you do in an hour is not really as relevant as all the other things that go into a piping project. Remember, there is alot of handaling of pipe, fittings from off the drawing board, off the stock truck, to on the bench,to be prepped, to be welded, to be inspected, to be shipped, and then installed, to placing hangers that time adds up quick and what IF something is built wrong? Rework? AAARRRGGGHHH! Yeah, there is alot to consider. Don't quote me with the 3 hour time it maybe more or less, I don't bid the stuff I just weld it, but there is alot to consider and that type of time includes ALL that it takes to do a pipe job.
#Section 80 forum series
Ofcourse it doesn't take even a rookie welder to do a joint in 3 hours but when all the things I mentioned earlier which comes from start to finish of a series of 's not really that far fetched. I am not sure exactly how my employer bids this stuff but we had tracked jobs before and I think a 3 inch, sched 80 weld joint using SMAW with a 6010 root and the balance of 7018 would be given a value of like 3 hours per joint. 80 joints in an hour all day long with out killing myself so in 8 hours, 24 welds (to me) is reasonable, but like what was mentioned by others, you have to consider cutting and prepping and tacking all this stuff up. I have been welding for over 20 years (mostly pipe) and I could easily weld three_ 3" sched. Will any welds be subject to radiographic inspection per either code? Will you be building spool pieces which would be fully completed in the field (consisting of 2-5 or so joints per weld spool)? Can you roll these parts on the bench? Like a 4 foot length of pipe with a flange on either end is faster to weld than 2 or 3 runs with 3 or 4 90 degree elbow on it even though once it's tacked up all a welder has to do is weld it.
#Section 80 forum code
You would be using SMAW, but what is the procedure? 6010 open root all the way or 6010 root and the balance with 7018? What code are you welding to? API 1104 is less strict compared to ASME B.31.1 or B.31.3. Steve, every thing is relative in regards to weld time and alot of things need to be considered.
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