ASTM A387 Gade 12

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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. The two grades SSAB produces are available as Class 1 and/or Class 2.

    Dimension Range

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      Grade Product type Thickness
      (inchesmm)
      Width
      (inchesmm)
      Length
      (inchesmm)
      Grade 12 Plate 0.276 - 2.007.01 - 50.8 75 - 129.91900 - 3299 154 - 5903910 - 15000
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      Comparison

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

        Mechanical Properties

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          Product type Grade Thickness
          (inchesmm)
          0.2% YS
          (ksi)
          UTS
          (ksi)
          Elongation in 2" 1)
          (min %)
          Elongation in 8" 1)
          (min %)
          Plate Grade 12 Class 1 0.276 - 2.007.01 - 50.8 33 55 - 80 22 18
          Plate Grade 12 Class 2 0.276 - 2.007.01 - 50.8 40 65 - 85 22 19
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          Comparison

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