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  • Users: jwhit
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  1. jwhit

    Fit, Form and Function

    Every now and then I run across someone using the term Fit,Form and Function, which to me is established in the engineering stage and verified in the inspection stage. The issue I have is when they attempt to extend that terminology to inspection for material discontinuities. To my way of...
  2. jwhit

    Thickness Qualified

    This is probably a good question for GTAW. In order to qualify a WPS to cover the range of potential thicknesses to be welded per ASME IX, I need to qualify a ¼” plate and a 1-1/2” plate. What I’m trying to accomplish is casting repairs for wall thicknesses from 1/8” to at least 3” using 2...
  3. jwhit

    Code Responsibility

    In the manufacture of raw materials for a pressure vessel, where does the material manufacturers responsibility leave off and the pressure vessel manufacturers begin? As an example, the construction code is ASME VIII and the raw materials are castings. Limited information is given by the...
  4. jwhit

    Post Weld Normalize

    Every so often, the idea of welding carbon steel castings(A216 WCB/WCC) in the as cast condition and normalizing after welding is brought up. My opinion is that doing so is a fool's errand at best. Castings have CE restricted to 0.41 max, process is GTAW with ER70S-2, 100% argon. My concerns...
  5. jwhit

    NACE MR0175 & SP0472 Para. 2.3.5.6.3

    I had this posted on one of the other forums with no response. This is probably a more appropriate place for the question. We are going around about the interpretation of the subject paragraph in SP0472. The issue is deliberate additions. One interpretation is that anything in excess of 0.01%...
  6. jwhit

    Interpretation of NACE SP0472 Para. 2.3.5.6.3

    We are going around about the interpretation of the subject paragraph in SP0472. The issue is deliberate additions. One interpretation is that anything in excess of 0.01% for Ti, V, and Nb is deliberate as is anything in excess of 0.0005%B is deliberate. Ti is the only micro-alloying element...

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