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  • Users: erssk
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  1. erssk

    Extruded and a drawn aluminum tube differentiation

    Is it possible to differentiate between an extruded and a drawn aluminum tube by a metallurgical examination of the microstructure? I do not know if the tube has been artificially aged after drawing / extruding. Surface finish is smooth and shiny ID and OD with some longitudonal marking.
  2. erssk

    ASME Sect. IX SA212

    I know SA212 was superseded in 1962 by SA 515. Was SA212 a P1 gr1 material also.

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