b31.3 excess reinforcement

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I know that there cand be flaws in a weld and I know 31.3 is fairly lenient. What is the code as far as excess reinforcement.  I've seen guys leave a few minor grapes in their root, yet they still shoot. I would not have left these and I'm wondering if I'm making unnecessary repairs. Pipe size is 6-48 in
Reply:All based on min wall thickness.So typically .180 wall would be less than .500 wall on so on.
Reply:Excess reinforcement is basically too much cap, X-ray can't call that but the inspector can. Excessive penetration can be called by X-ray but it is difficult to measure. Typically you are not supposed to have more than 1/16 of reinforcement
Reply:Originally Posted by riflecoTypically you are not supposed to have more than 1/16 of reinforcement
Reply:I was always told no more than 1/16" reinforcement on the root pass. These were not "code" welds. Usually no more than 1/8" above flush for the cap. Cep I'm sure there is a limit for undercut/under fill/suckback on the root I don't remember the numbers though.Airco Ac/Dc 300 HeliwelderMillerMatic 200 (stolen)Miller Maxstar 150STLMiller AEAD200LE (welding and generating power) Hobart MIG
Reply:Undercut on the bead is measured in length and density as well as width all determined by the size and thickness of the pipe but not to exceed certain limits never more than 15% of the weld and I believe not more than 1" continuous or 2" in 12 inches of weld. Can't remember how deep it can be 1/64th" seems familiar
Reply:Originally Posted by riflecoUndercut on the bead is measured in length and density as well as width all determined by the size and thickness of the pipe but not to exceed certain limits never more than 15% of the weld and I believe not more than 1" continuous or 2" in 12 inches of weld. Can't remember how deep it can be 1/64th" seems familiar
Reply:If your talking about structural CEP it should be in th D1.1 code. B31.3 is strictly process piping I believe
Reply:Originally Posted by tiginatorIf your talking about structural CEP it should be in th D1.1 code. B31.3 is strictly process piping I believe
Reply:Per B31.3, Table 341.3.2:Category M, Normal Fluid, and Severe Cyclic Service = .125" for thickness up to .500"Category D Fluid Service= .250" for thickness .250" to .500".
Reply:@ CEP - the 2004 ASME Code for Pressure Piping (B31.2) is available as a free download @ https://law.resource.org/pub/us/code...b31.1.2007.pdf.  Haven't researched your question, but the answer should be herein contained."Discovery is to see what everybody else has seen, and to think what nobody else has thought" - Albert Szent-Gyorgyi
Reply:Thanks ManoKai! One of the other members here e-mailed me table 341.1.2Don’t pay any attention to meI’m just a hobbyist!CarlDynasty 300V350-Pro w/pulseSG Spool gun1937 IdealArc-300PowerArc 200ST3 SA-200sVantage 400
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