API 2H Grade 42

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    General Product Description

    API 2H Grade 42 is an intermediate-strength, normalized, structural steel plate used in the welded construction of offshore structures. API 2H Grade 42 has a minimum yield strength of 42 ksi [289 MPa] and a minimum transverse Charpy V-notch impact toughness of 25 ft-lb [34 J] at -40°F [-40°C].

    Applications

    API 2H Grade 42 is intended primarily for use in offshore structures in critical portions that must exhibit good impact toughness and resistance to plastic fatigue loading and lamellar tearing. The primary use of API 2H Grade 42 is in tubular joints, stiffened plate construction and other intersections where portions of the plates will be subjected to tension in the through-thickness (Z) direction.

    Dimension Range

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      Grade Product type Thickness
      (inchesmm)
      Width
      (inchesmm)
      Length
      (inchesmm)
      Grade 42 Plate 0.590 - 2.0015.0 - 50.8 75 - 129.91900 - 3299 154 - 5903910 - 15000
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        Mechanical Properties

        Tensile testing is performed in the transverse direction.

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          Product type Grade Thickness
          (inchesmm)
          Yield strength
          (min ksi)
          Tensile strength
          (ksi)
          Elongation in 2"
          (min %)
          Elongation in 8"
          (min %)
          Plate Grade 42 0.590 - 2.0015.0 - 50.8 42 62 - 82 22 18
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            Impact Properties

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              Grade Specimen Size
              (inches)
              Min transverse average energy
              (ft-lbs)
              Min single value
              (ft-lbs)
              Test temperature
              (°F)
              Grade 42 0.394 x 0.394 25 20 -40
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                Carbon Equivalent CET(CEV)

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                  Grade Grade 42
                  Thickness (inchesmm) 0.590 - 2.0015.0 - 50.8
                  CEV (max %) 0.43
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                    Grade
                    Thickness (inchesmm)
                    Grade 42
                    0.590 - 2.0015.0 - 50.8
                    Grade
                    CEV (max %)
                    Grade 42
                    0.43