how long required to weld a 6" pipe (4 joint) ss material

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hi, i would like to know a 6" pipe required to weld 4 joint for ss material. the thickness is 1". what will be the sequence? root pass etc etc... can any teach me and also how to calculate the duration to complete all welding.Sent from my GT-N7000 using Tapatalk 2
Reply:Root, hotpass, filler, filler filler, filler filler filler, filler filler filler, cap pass probably 3 bead depending on position. Peobably 4 hr of work start to finish.... It stainless
Reply:If this is code work it could take much longer. Maintaining interpass temp etc..
Reply:I think process and what the code will allow will influence this. its pretty common to TIG the root at least on SS pipe, if your filling a 1" all the way with TIG....slow. Zap or on of the Tiggers need to talk to that and will answer what the deposition rate would be.I also think: is it a UT or Xray weld? You left a lot of variables which make it hard to answer with a good correct answer.
Reply:Dear Gurus, let me check on drawing and look for the what type of welding. is ss material , hand welding, require RT. this is what i know. i new for the welding so apologize that left lots of questions for your guys. let me come back to all of you again with information.Sent from my GT-N7000 using Tapatalk 2
Reply:Originally Posted by Showdog75If this is code work it could take much longer. Maintaining interpass temp etc..
Reply:Many variables come into play.  Different welders weld at different speeds.  I know a few welders that could weld each fit in less than 2 hrs and i know some that will take more than 6 hrs. It also depends on what size wire or rod you are using, If you try and tig weld this with 1/16 wire, its gonna take you so long to finish that you will probably get your *** fired for taking so long, where as if you use 3/16 wire, you will finish much faster.
Reply:Tig, all the way out on this joint is very slow, as others have stated. If tig is the procedure all the way on this joint, it needs large wire and higher amperage to speed up metal deposition rate. Since this is stainless, the inside of the pipe will require back shielding which increases prep time and cost.JasonLincoln Idealarc 250 stick/tigThermal Dynamics Cutmaster 52Miller Bobcat 250Torchmate CNC tableThermal Arc Hefty 2Ironworkers Local 720
Reply:I really think something has been lost in the translation here.  Is the op asking about 6 inch stainless pipe with a 1 inch wall thickness.  Big buck project.  Anyone worked on such?  Definitely be a written procedure.  Quality control would be far more paramount then time factor.Last edited by OldSparks; 09-03-2012 at 12:10 PM.