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
    (inmm)
    Width
    (inmm)
    Length
    (inmm)
    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
        (inmm)
        UTS
        (ksi)
        Elongation in 2" 1)
        (min %)
        Elongation in 8" 1)
        (min %)
        Plate Grade 12 Class 1 0.276 - 2.007.01 - 50.8 55 - 80 22 18
        Plate Grade 12 Class 2 0.276 - 2.007.01 - 50.8 65 - 85 22 19
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        Comparison

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