ASTM A455

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    General Product Description

    The ASTM A455 specification is the Standard Specification for Pressure Vessel Plates, Carbon Steel, High-strength Manganese plates used in the application of welded pressure vessels. There is one chemistry composition defined while there are multiple strength levels available dependent on plate thickness.

    Dimension Range

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      Grade Product type Thickness
      (inchesmm)
      Width
      (inchesmm)
      Length
      (inchesmm)
      ASTM A455 Plate 0.1875 - 0.7504.762 - 19.0 72 - 1201800 - 3050 240 - 10206100 - 25910
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      Comparison

        Width: Please inquire for plate widths less than 72 in. For thicknesses less than 0.25 in., maximum width is 96 in.

        Length: Please inquire for plate lengths less than the listed minimum or greater than the listed maximum.

        Mechanical Properties

        Tensile testing is performed in the transverse direction.

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          Grade Thickness
          (inchesmm)
          Yield strength
          (min ksi)
          Tensile strength
          (ksi)
          Elongation in 2" 1)
          (min %)
          Elongation in 8" 1)
          (min %)
          ASTM A455 0.187 - 0.3754.75 - 9.52 38 75 - 95 22 15
          ASTM A455 0.376 - 0.5809.55 - 14.7 37 73 - 93 22 15
          ASTM A455 0.581 - 0.75014.8 - 19.0 35 70 - 90 22 15
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          Comparison

            1) Refer to ASTM A20/A20M for Elongation adjustments based on plate thickness.