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  • Users: weldquals
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  1. weldquals

    B31.3 Impact Testing @ -425F

    The product/service is Liquid Hydrogen with operating temp of -425F, material is A312 TP316/321. Do you need to test it @-425F or at -320F impacts? Thanks
  2. weldquals

    Valve CLosure Leak Test

    Is it allowed to use soap solution (Snoop) on Seat closure leak test. We are testing per API-598? TIA
  3. weldquals

    Calculating number of rollers to use

    Good Day To All! I have a 3000lb capacity Pandjiris positioners and I want to use it to rotate a 42" dia pipe (18000 lbs). My question is how many rollers (rubber/ steel) do I need to use? I know there will be friction on the rollers. Thank You in advance
  4. weldquals

    PWHT Coupons

    To All, A.For ordering plate from the mill a Plate material specification is been issued. B. One of the requirement for ordering is a PWHT coupon specifying the time and temperature it has to undergo . 1. For Item A - How would i know if the Plate material specification our engineering issued...
  5. weldquals

    National Board Registration for ASME U Stamp Manufacturer

    To All, We are going to fabricate a ASME section VIII div 2 vessel and we are required to have an ASME U Stamp. We are already on the process of getting the certification. My question is do we need to register to the National Board or secure permit from them? Thanks in advance Weld quals
  6. weldquals

    Delayed Cracking in A537 CL1 material

    Gents, Any information on how many hours are required after welding a 537 CL 1 material together before we UT? Any info regarding delayed cracking in this type of material?

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