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  • Users: albaweld
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  1. albaweld

    9% Nickel plate and GTAW (TIG) Welding

    I'm in the process of developing a WPS for 9% Nickel plate, however there has been some feedback in regards to the possible introduction of magnetism to the plate by using the GTAW process. Can anyone elaborate please, I've never heard of this before, also is the a process to ensure this doesn't...
  2. albaweld

    with or without backing and welder qualifications

    I'm looking for validation on this point or a positive proof to negate my approach please. If I have a welder qualified to GTAW (TIG) carbon steel only without backing (gas or plate) and he utilizes F6 GTAW to obtain a fillet weld, could I use the same welder to obtain a Stainless Steel fillet...
  3. albaweld

    PQR and WPS software

    Could anyone recommend a reliable programme I could purchase, download and install to help generate new weld procedures? Preferably for North America, Canada in particular. Many thanks,
  4. albaweld

    how to weld 2507 duplex stainless steel using AWS ER2594 and also using hastelloy G35?

    Looking for some tips in the process's applications for both GTAW (TIG) and GMAW (MIG) to this particular duplex on 1/8" plate....back purge pressures...cleanliness...speed...amps ...stringers as opposed to weaves...I would think that a weave would lead to lack of fusion because of fast freeze...
  5. albaweld

    Gauge calibration and required gauges.

    Hello everyone, hope you all had a pleasant weekend. I'm looking to find where it references the requirement of two gauges when doing hydro testing. (high point--low point)This is for piping and so far I have had no luck in B31:3. Also the length of time when gauges should re-calibrated, is this...
  6. albaweld

    Piping test header requirements

    Under B31.3, are there any requirements in regards to design or registration governing the fabrication of a hydro-testing manifold. Thanks for the time spent on this.
  7. albaweld

    Pnuematic test header design and test

    We are in the process of fabricating a test header that will be utilized in pnuematic testing here in Canada. Does the header need to be designed and stamped and approved by the provincial authority, and, what code or specification can be used to determine the testing required on the header...
  8. albaweld

    CSA Z276

    According to clause 9.6.3 welded pipe tests, are the additional requirements for NDE applying only to welded pipe ( long seam and spiral) or is the intent to include seamless piping also?
  9. albaweld

    Welder certification

    As per Sec IX, if a welder is qualified by using a production weld, is that welder only qualified for that particular project or can that qualification be used for further projects, all process parameters the same?
  10. albaweld

    CSA Z276 LNG

    In clause 9 of the above standard, it requires for flammable liquids and gases that 30% of "each days circumferentially welded pipe joints shall be non-destructively tested over the entire circumference, in accordance with B31.3" This would be ok with numerous welds every day, but if welding one...
  11. albaweld

    Pneumatic testing

    We are some months away from doing pneumatic testing, and doing as much sourcing as possible. We are up against a bit of a wall though. This may sound as if we are not professional but we need to source a TNT formula for our volume etc, we have contacted the safety authorities and codes..B31:3...
  12. albaweld

    PWHT on Piping

    Under B31:3 2006 edition, if I PWHT a welded joint but the whole pipe is set in an oven for the process, can I weld attachments (shoes) to the pipe afterwards without more PWHT?
  13. albaweld

    PQR's

    I'm trying to create a PQR for low temp carbon that will give me both impact values and also PWHT values. I also need this procedure to be utilized when parent metal thickness does not require PWHT. Can I achieve all this on one PQR?
  14. albaweld

    LNG piping

    Thanks for the input to all. OK here is the situation, we will be welding TP304L piping with operating temps down to -162C. Relevent codes are B31.3 and CSA Z276. It looks as though B31.3 allows no impact values required for austenitic S/S to - 101C. Will I need to design a new weld procedure...
  15. albaweld

    LNG piping

    I'm currently trying to find where in what code any requirements that state that a stainless steel WPS requires impact values for stainless cryogenic piping..any and all help is appreciated. Many thanks
  16. albaweld

    welding terminology

    Can a butt weld that is contained on a designed straight run of piping be classified or termed "miter"? I'm arguing that it cannot be called a miter based on the definition of miter in B31.3 2004. I'm having difficulty with a construction group who are applying miter tolerances to allow for...

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