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  • Users: nhliew
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  1. nhliew

    Line pipe spec to API 5L and ISO 3183

    I have received some line pipes with the notation L290 instead of API 5L X42 that we have ordered. This had caused some confusion during material acceptance with the client but was eventually resolved by way of qualifying the SMYS and chemical composition. Is this notation adopted industry wide...
  2. nhliew

    Test pressure limits for flanges

    Good day all, Earlier today we were instructed to conduct hydrotest on a pipework package for with ASME B16.5 Class 300 rating. Specified test pressure was 7320 kPag (1061 psig). Design code is B31.3 and flange material was A105. Referencing ASME B16.5 Group 2.1.1, the 100 deg F pressure...

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