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Recent content by kaloyd

  1. kaloyd

    P91 Hardness test

    Thanks metengr! My question came up because our construction site group follows ASME B31.3 or ASME B31.1 requirements for pipe fabrication welds. However our Technology group is worried about the absence of hardness test considering experiences for failures if hardness test is not performed on...
  2. kaloyd

    P91 Hardness test

    Hello All! In relation to the discussion, regarding Post Weld Heat Treatments (PWHT) for P91 materials (Base Material P-No. 15E), it was observed that the hardness test requirements has been removed from B31.3. However, in B31.1 there was no hardness test in 2012, but newly added for cast...
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