ASTM A517 Grade Q

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    General Product Description

    ASTM A517 Grade Q is a high-strength, quenched and tempered alloy steel plate intended for pressure vessel applications. A517 Grade Q is available in thicknesses up to 3.6 in. and has a minimum yield strength of 100 ksi up to 2.5 in. thick and 90 ksi for plates greater than 2.5 in. thick to 3.6 in. thick. ASTM A517 Grade Q also has required Charpy V-notch impact property requirements.

    Dimension Range

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      Grade Product type Thickness
      (inchesmm)
      Width
      (inchesmm)
      Length
      (inchesmm)
      Q Plate 0.197 - 3.605.00 - 91.4 60 - 131.91500 - 3350 73 - 5901900 - 15000
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        Mechanical Properties

        Tensile Test: Tensile testing is performed in the transverse direction according to ASTM A20 requirements.

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          Grade Thickness
          (inchesmm)
          Yield strength
          (min ksi)
          Tensile strength
          (ksi)
          Elongation in 2" 1)
          (min %)
          Reduction in area for rectangle specimens 2)
          (min %)
          Reduction in area for round specimens 3)
          (min %)
          Q 0.197 - 2.505.00 - 63.5 100 115 - 135 16 35 45
          Q 0.251 - 3.606.38 - 91.4 90 105 - 135 14 45
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            1) See specification A20 for elongation adjustment.

            2) Reduction in area for 1.5 inches wide rectangular tension specimen.

            3) Reduction in area for 0.5 inch wide round tension specimen.

            Mechanical Testing

            Charpy V-Notch Impact Properties: A trasverse Charpy V-notch lateral expansion of 0.015” [0.38 mm] in individual specimens is required. The test temperature shall be agreed upon between the manufacturer and purchaser. Please inquire for required Charpy V-notch test temperature and for other specified minimum impact property requirements.