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  1. rbradshaw2021

    API5L Sample Criteria

    Yes, the MTRs to report that. And while I understand that the mechanical testing represents the final product, the customer is hung up on me proving "when" the mechanical testing takes place in relation to the heat treatment.
  2. rbradshaw2021

    API5L Sample Criteria

    Is there somewhere within API5L that states that samples taken for mechanical testing represent the final product? My customer is ordering API5L X65Q material, and wants me to prove that the samples tested are post heat treat. My obvious thought was yes, but I need the actual verbiage from a...
  3. rbradshaw2021

    Performance differences SAW vs HFW

    My understanding was, previously, ERW pipe was manufactured using low frequency current, which in turn created lack of fusion concerns on the weld seam. HFW is a higher frequency, and to my understanding alleviates the seam bonding concerns. Pipes produced from electric welding techniques are...
  4. rbradshaw2021

    What is the difference between PSL 1 and PSL2?

    PSL2 is material with proven notch toughness properties to 0F, or a temperature specified at time of mill order.
  5. rbradshaw2021

    Performance differences SAW vs HFW

    Are there differences in quality/performance between an X70 HFW pipe and an X70 DSAW pipe? Other then the filler metal, if they are both rated for a min YS of 70,000PSI, why would one choose DSAW over HFW?

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