ASTM A514 Grade Q

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    General Product Description

    ASTM A514 Grade Q is a quenched and tempered alloy steel plate used in structural applications that require high yield strength combined with good formability and toughness. A514 Grade Q has a minimum yield strength of 100 ksi up to 2.5 inches in thickness and 90 ksi for plates greater than 2.5 inches up to 6 inches in thickness. Grade Q may be ordered with supplemental Charpy V-notch toughness test requirements.

    Applications

    Typical applications for A514 Grade Q include transport trailers, construction equipment, crane booms, mobile aerial work platforms, agriculture equipment, heavy vehicle frames and chassis.

    Available Dimensions

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      Grade Product type Thickness
      (in)
      Width
      (in)
      Length
      (in)
      Grade Q Plate 0.185 - 6.00 60 - 131.9 73 - 590
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      Comparison

        Mechanical Properties

        Tensile Properties: Tensile testing is performed in the transverse direction according to ASTM A6 requirements. The tensile property and hardness requirements are tabulated below:

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          Grade Product type Thickness
          (in)
          Yield strength
          (min ksi)
          Tensile strength
          (ksi)
          Elongation in 2"
          (min %)
          Reduction of area 1)
          (min %)
          Reduction of area 2)
          (min %)
          Hardness 3)
          (HBW)
          Grade Q Plate 0.185 - 0.750 100 110 - 130 16 35 235 - 293
          Grade Q Plate 0.751 - 2.50 100 110 - 130 16 35 45
          Grade Q Plate 2.51 - 6.00 90 100 - 130 14 45
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          Comparison

            1) Reduction in area for 1.5 in. wide rectangular tension specimen.

            2) Reduction in area for 0.5 in. round tension specimen.

            3) For plates up to 0.375 in., a Brinell hardness test may be used instead of a tensile test for those plates not tensile tested in a 15 ton lot.