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  1. QCMike

    NACE Pipe

    What is the difference between NACE pipe and any other grade of carbon steel pipe? Thanks, QCMIKE
  2. QCMike

    Normal Temperature/Service

    I have a WPS for P8 to P8-F6/F5/F6. B31.3 For materials it states that procedure is qualified for all P8 matrials in QW 422 for normal temperature applications. It also says Normal Service What is the range of normal temp.? What is considered normal service? Thanks, QCMIKE
  3. QCMike

    Welder Qualification

    I have a pipe spec. that quotes A333 ITCS pipe and ITCS A350 LF2 fittings. Are these materials impact tested any differently than normal test for these materials? QCMIKE
  4. QCMike

    Welder Qualification

    Which weld has more strength, a fillet weld around a socket connection or a butt weld? A natural gas line was butt welded when the customer spec called for socket welds. At a meeting it was mentioned that a butt weld was stronger than a socket weld and this was immediately contradicted by one...
  5. QCMike

    Welder Qualification

    The welding is being done to B31.3. QCMIKE
  6. QCMike

    Welder Qualification

    Does any ASME piping code specify that the first two welds by any welder need to be radiographed as qualifying shots? If so, would that be per welder, per procedure? Thanks QCMIKE
  7. QCMike

    Hydrotest Pressure

    Is there a tolerance on the hydrotest pressure when testing to B31.3? I am testing carbon steel pipe for the petroleum industry. Also HDPE pipe is being tested> Thanks
  8. QCMike

    Divided flow in Tee

    I have a Technical Deviation that allows me to Hydro Test Non-Compressible fluids without a PSV. I work in the petroleum industry. What is an example of a non-cpmpressible and compressible fluid?
  9. QCMike

    Pipe Welding

    If a welding symbol calls for a single bevel on both sides of a 20 mm plate and the preperation calls for 10mm on both arrow side and opposite side, is it calling up a full pen weld? There is no mention GTSM in tail.
  10. QCMike

    I have to weld a 304L nipple to a 3

    I have to weld a 304L nipple to a 316L Bleed Ring. What consumable should I use? Gtaw and Smaw.
  11. QCMike

    Pipe Welding

    I need to wrilte a PWHT procedure for P1 material both sour and non-sour service. The material for the moment is A 106 B. Is there a formula I can use to determine max. rate per hour the temp can be raised, duration of soak and rate of cooling per hour? Is there a rate and temp. that must not...
  12. QCMike

    Pipe Welding

    Should Stainless electrodes be kept in a bake oven, or just kept warm and dry?
  13. QCMike

    Pipe Welding

    I have another question about the WPS for stainless. If the parameters on the wps can be used for any P8 material, wouldn't a new welding procedure data sheet have to be made listing 316L consumables and 316L base material? Would any further testing be required since the consumable and base...
  14. QCMike

    Pipe Welding

    Should Stainless electrodes be kept in a bake oven, or just kept warm and dry?
  15. QCMike

    Pipe Welding

    JasonLouie, Yes, it is a Ledcor procedure. How did you know that?
  16. QCMike

    Pipe Welding

    JasonLouie, The WPDS form does not list an origin. It does have a line that says Ref.ASME Sec.IX LIL-150 Rev. 0, which is the WPS I mentioned in the post that you answered.Under applicable Codes it list ASME B31.3.
  17. QCMike

    Pipe Welding

    I have a welding procedure and the PQR was done on Grade 304L P8 material. On form QW-482, under Base Metals QW-403 P8 to P8 is listed. Under Spec. type & grade ,Chem. analysis & mec. Prop. NA is on every line. Does this mean any P8 to P8 material can be welded with this WPS. The Welding...
  18. QCMike

    Pipe Welding

    Should stainless electrodes be kept in a bake oven?
  19. QCMike

    Pipe Welding

    On welder performance qualification cards , on the line marked Materials (P.N0.). If no Group No. is given for P1, what group is qualified. If on Materials line P1 to P8 is noted does that mean any steel listed as a P1 to any steel listed as P8 can be welded up to deposited thickness...
  20. QCMike

    Pipe Welding

    Can two welders qualified to deposit 14mm max. weld one pipe joint with a 25mm wall?

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