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  1. weldgal

    ASME QW-423.1 unassigned metals

    Thank you metengr for your time, and I'm sorry that I have been unable to present my question in a clearer way, but in this unique situation was hoping to learn of someone's personal experience with sucess (or failure) in presenting an unassigned material as "similar" to an assigned material...
  2. weldgal

    ASME QW-423.1 unassigned metals

    Like you, metengr, I was leaning towards qualifying additional welders, and may still opt to do so if necessary, but my primary goal with this post is to learn how ASME defines "similar" as it is used in QW-423.1 because I have been unable to locate any interpretations or personal experience...
  3. weldgal

    ASME QW-423.1 unassigned metals

    I qualified a WPS for it, but would like to be able to use existing welders if I can define "similar" to know if welders who are qualified to P-4x materials can work on the job (within all required essential variables of course), since QW-423.1 permits that.
  4. weldgal

    ASME QW-423.1 unassigned metals

    Good suggestion, but this particular material is a NiCr (ASTM B670) and is not listed in B2.1. Do you have any personal experience in how to "similar" the chemical composition has to be in order for me to be able to consider it "similar" to an assigned metal?
  5. weldgal

    ASME QW-423.1 unassigned metals

    ASME QW-423.1 permits welder qualifications to extend to unassigned base metals of similar chemical composition to base metals that have P-numbers. Does anyone have any experience in how "similar" a base metal's chemical composition has to be?
  6. weldgal

    Using SHARPIE brand markers on stainless

    Marking will be done upon receipt of the stainless materials in our warehouse and prior to fabrication, so the heat should not be an issue. I'm hoping to either confirm or contradict a statement made to me that SHARPIE markers cause cracks in stainless.
  7. weldgal

    Using SHARPIE brand markers on stainless

    I'd like to know of anyone's experiences (good or bad) using SHARPIE brand markers on stainless steel materials.
  8. weldgal

    ASME fillet weld size tolerance

    JoeTank: While I don't have ASME-III in my library, I'll see what I can find; thanks for the suggestion. weldtek: The standard I'm writing will apply to ASME work (since AWS already addresses undersized fillets). And while my Code calcs usually do provide the min weld size required, they...
  9. weldgal

    ASME fillet weld size tolerance

    I have, and I'm probably going to base our own standard around it.
  10. weldgal

    ASME fillet weld size tolerance

    According to the foreword in ASME Section VIII, "the Code does not fully address tolerances. When dimensions, sizes, or other parameters are not specified with tolerances, the values of these parameters are considered nominal and allowable tolerances or local variances may be considered...
  11. weldgal

    Factors of heat input

    Thank for responding; so far, we're on the same page. Do you have any reference data that would indicate how big a role preheat and interpass temps have in heat input? While WPSs require preheat mins and interpass maximums, neither preheat nor interpass is a part of the arc energy heat input...
  12. weldgal

    Factors of heat input

    In calculating heat input (amps x volts x 60/IPM) on a weld, I'm interested in getting opinions on how much impact preheat and interpass temps have vs. the heat input itself as calculated by the traditional formula shown. None of the technical papers I've found incorporate anything but the four...
  13. weldgal

    UNS 32205

    I've gotten great information from this link, but I'm in need of information specific to NAVSEA Tech Pub 248, not just 2205 in general.
  14. weldgal

    UNS 32205

    Does anyone have extensive experience qualifying WPSs using 2205 to NAVSEA Tech Pub 248 para 4.7.5(f)? Specifically I'm interested in the requirement (if any) to MAINTAIN interpass temperature (vs. ensuring that WPS interpass max is not exceeded).
  15. weldgal

    Dissimilar welding of 317Lss (P-8) to SA516-70 (P-1)

    Looking for recommendations on filler metal for welding 317L stainless to SA516-70 for a 650 deg F application. Typically use 309 for carbon to stainless joints, but would like to make sure that this particular dissimilar joint doesn't pose any additional issues.
  16. weldgal

    Welding 70/30 to HSLA-65

    70/30 copper nickel.
  17. weldgal

    Welding 70/30 to HSLA-65

    Has anyone done this successfully in either the GTAW or GMAW process?
  18. weldgal

    NAVSEA Tech Pub 248 welder training

    gtaw: Thank you for your thorough response; it's appreciated.
  19. weldgal

    NAVSEA Tech Pub 248 welder training

    Does para 5.2.3.1 allow me to hire welders who were trained with a program under another activity's program? We would establish qualification per 5.2.3, but am interested in any interpretations regarding the training requirement.
  20. weldgal

    ASME definition of "corrosive service"

    That makes perfect sense; thanks.

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