NV A/D/E 40

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General Product Description

DNV Grades NV A40, NV D40, and NV E40 are high-strength structural steels with a minimum specified yield strength of 57 ksi and specified minimum Charpy V-notch impact toughness properties.

Applications

Typical applications include shipbuilding and mobile offshore drilling units and structures.

Available Dimensions

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    Grade Product type Thickness
    (in)
    Width
    (in)
    Length
    (in)
    NV A40 Plate 0.2362 - 1.575 75 - 129.9 79 - 906
    NV D40 Plate 0.2362 - 1.575 75 - 129.9 79 - 906
    NV E40 Plate 0.2362 - 1.575 75 - 129.9 79 - 906
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      Width: Please inquire for plate widths less than 75 in. and plate widths greater than 129,9 in.

      Length: Please inquire for plate lengths oustide the noted ranges.

      Thickness: Please inquire for plate thicknesses outside the noted ranges.

      Mechanical Properties

      Tensile testing is performed in the transverse direction.

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        Grade Thickness
        (in)
        Yield strength
        (min ksi)
        Tensile strength
        (ksi)
        Elongation A5 1)
        (min %)
        NV A40 0.2362 - 1.575 57 74 - 96 20
        NV D40 0.2362 - 1.575 57 74 - 96 20
        NV E40 0.2362 - 1.575 57 74 - 96 20
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          1) See DNV Rules for elongation requirements for alternative tensile specimens.

          Impact Properties

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            Grade Thickness
            (in)
            Test temperature
            (°F)
            Min Longitudinal Average Energy 1)
            (ft-lbs)
            NV A40 0.2362 - 1.575 32 29
            NV D40 0.2362 - 1.575 -4 29
            NV E40 0.2362 - 1.575 -40 29
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              1) Tests are to be taken in the longitudinal direction. Normally, transverse test specimens are not required unless otherwise specified in the order. Impact tests not required when material thickness is less than 0.236 in. unless otherwise specified.

              No more than one value below the specified miniminum average energy but no less than 70% of the specfied minimum average energy value.

              Minimum average energy for full-size specimens. Refer to DNV Rules for sub-size specimen energy requirements.

              Carbon Equivalent

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                Grade NV A40 NV D40 NV E40
                Thickness (in) 0.2362 - 1.575 0.2362 - 1.575 0.2362 - 1.575
                CEV 1) (max wt %) 0.40 0.40 0.40
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                  1) Carbon equivalent requirements for TMCP condition of supply only.