ASTM A387 Gade 11

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    General Product Description

    The ASTM A387 specification is the Standard Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Molybdenum intended primarily for use in welded boilers and pressure vessels designed for elevated temperature service. SSAB can supply A387 Grade 11 to the tension test requirements for Class 1 and/or Class 2.

    Dimension Range

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      Grade Product type Thickness
      (inchesmm)
      Width
      (inchesmm)
      Length
      (inchesmm)
      Grade 11 Plate 0.185 - 3.604.70 - 91.4 60 - 131.91500 - 3350 73 - 5901900 - 15000
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      Comparison

        Width: Inquire for widths and lengths outside the noted ranges.

        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 %)
          Grade 11 Class 1 0.185 - 3.604.70 - 91.4 35 60 - 85 22 19
          Grade 11 Class 2 0.185 - 3.604.70 - 91.4 45 75 - 100 22 18
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          Comparison

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