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  1. specsnstandards

    GR 448 Cat II -45C vs. GR 448 Cat III -45C vs

    Sorry, liquids LVP crude line, no CO2 and length is great than 100m
  2. specsnstandards

    GR 448 Cat II -45C vs. GR 448 Cat III -45C vs

    Thanks Snorgy-I appretiate your input. Yes, the iPad continues to dominate, control and auto correct!!! If only it could decipher standards!! thanks specs :)
  3. specsnstandards

    GR 448 Cat II -45C vs. GR 448 Cat III -45C vs

    Hello, A question about Cat II vs Cat III. I have been asked if Gr 448 Cat III pipe can be substituted for for GR 448 Cat II. (both to -45C) What are the primary differences between the categories? Both are notch toughness tested, Cat II 0s 60% shear, Cat III has no shear testing. I cant...

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