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  • Users: qcrobert
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  1. qcrobert

    NFPA 85 boiler rules

    Does NFPA 85 rule boilers up to 300 HP? Robertp
  2. qcrobert

    How can steel manufacturer chemical composition differ from ASTM/ASME chem comp?

    ASME Sec II Part A states that the chemical composition of SA/A516 Gr 60 for Mn is 0.79 - 1.30 but a steel manufacturer states their product meets ASME spec but is 0.79 - 1.50 Mn. Does ASME allow a tolerance for exceeding the Product Analysis?
  3. qcrobert

    Unclear on API 620 Table 5-2

    I am getting differing opinions on several forums as to the extent of RT as it applies to 70% JE. After much feedback I'm leaning to the assumption that butt welds in the circ and longitudinal shell joints of a tank require Spot RT when 70% JE is called out in the Design Data block of the AFC...
  4. qcrobert

    API 620 RT requirement for 70% JE

    I know ASME Sec VIII Div 1 per UW-12 does not require RT for 70% JE on double welded butt joints. Does API 620 per Table 5-2 require RT for 70% JE on double welded butt joints? Thanks in advance for your assistance. qcrobert
  5. qcrobert

    What welding position is called whe

    What welding position is called when fillet welding downhill a full circle disc on a flat vertical plane (ie wall)?
  6. qcrobert

    Who is the EOR involving the drawings associated with API 620 tanks?

    In the title block of the tank drawing it states the engineer that: Drawn By: MG Checked By: LPJ Approved By: KPS Which of these persons is considered the EOR? Appreciate your comments, RobertP
  7. qcrobert

    Filler Metal to join 2205 to C276..?

    We have qualified WPSs to join 2205 to 2205 with 2209 filler metal and C276 to C276 with ERNiCrMo-10 filler metal. I believe the correct filler metal to join 2205 to C276 is ERNiCrMo-10 filler metal however the 2205/C276 will be subjected to a variety of atmospheric harsh acids and am concerned...
  8. qcrobert

    What filler metal to join crankshaft parts?

    Would like your opinion (or best guess) on what filler metal and welding process you would use to stitch weld a bushing to the flywheel of a motorcycle? Please see attached sketch of crankshaft part assembly and PMI of flywheel and bushing. Thank you your time Robert...
  9. qcrobert

    MTRs Acceptance Question?

    A company purchases and receives a full coil (approx. 26 sheets) of stainless steel plate. One MTR accompanies the lot and it states "Qty 7 sheets" with Ht No 34645. Is it acceptable to approve the remaining 19 sheets that are identified as Ht No 34645? Thanks in advance, Robert
  10. qcrobert

    Filler Metal to Join C22 to 2205

    Wishing to confirm my thoughts... Is ER NiCrMo-10 to correct filler metal to joing C22 to 2205? Thanks in advance, Robert
  11. qcrobert

    API 12F Monogram Cert Costs?

    I know that a company is not required to be certified in order to manufacture & sell API12F tanks but would like some input from someone with experience with 12F certification. I have heard that the cost of becoming a 12F certified company involves much more than an ASME "U" stamp cert and much...
  12. qcrobert

    max hardness after PWHT of P4 & P15E matl?

    Could you help me on where to find the max hardness value after post weld heat treatment of P4 & P15E materials. the construction codes are either B31.1 or ASME sec 8, we have done a welding procedure qualification test and we got some hardness values, but do not know whether the hardness...
  13. qcrobert

    Low Thermal Input MIG Welding???

    Good afternoon Gents, What a wonderful, invaluable forum this is that we can draw on the knowledge and experience of such a vast audience of forum members. I am investigating GMAW process equipment that will exert the least amount of thermal input into welding a .750" thk rolled CS flange to a...
  14. qcrobert

    Anti-Splatter Removal Methods?

    Anyone here have experience in removing weld anti-splatter from stainless steel in order to paint the weldment? After using solvent and then power washing areas with anti splatter, the then painted areas seem to leach out the anti splatter and create a fisheye appearance. Thank you in advance.
  15. qcrobert

    ISO 9000 of any value?

    Hello, As QA manager of a pressure vessel fabrication facility, I am researching the ISO 9000 & 9001 for our company and to be honest am somewhat skeptical as to its value to our company. We already have in place the ASME U & PP stamps and NBIC R stamp certifications. I could see where ISO...
  16. qcrobert

    Plasma Cutting GAS for G-30?

    Gentlemen, On the laser table we use a 55% Nitrogen, 40% Helium, 5% Co2 Was wondering what is the ideal gas for plasma cutting G-30 Hastalloy material? Thanks in advance, QCRobert
  17. qcrobert

    Patterson Rig #491 Boiler Explosion

    Matthew Lawson posted this on the AWS forum and I would like to share this important information to all operators, inspectors and construction personnel in general. "January 28th, 2012 Drilling Ahead has received a report that Patterson Rig #491 drilling at Keene, North Dakota near Williston...
  18. qcrobert

    Manual Shearwave UT Acceptable?

    We have a Client that we are building a non-stamped vessel (under 15psig and non-lethal and 1/2"-5/8" thk) to ASME Section VIII Div 1. Client has stated all welds in material ½ in. (13 mm) and greater in thickness may be examined using the ultrasonic (UT) method given the requirements of 7.5.5...
  19. qcrobert

    UT in lieu of RT?

    Have a vessel, non lethal service, non code stamped, that was designed per Sec VIII Div 1. Client wants spot RT to fullfill 85% joint efficiency. I, as manufacturer, have proposed 100% shear wave UT to give overall better information on all weld seams. Client agrees but wants me to provide...
  20. qcrobert

    QW-452(b) thickness qualified?

    I have a contractor stating that his welder is qualified to weld unlimited thickness because his WPQ utilized a pipe thickness of 0.500” as per ASME QW-452-1(b). I disagree in that I interpret QW-452.1(b) as to state that ALL thickness (t) of weld metal in the Coupon qualifies only to 2t. The...

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