ASTM A514 Grade B

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    General Product Description

    ASTM A514 Grade B is a quenched and tempered alloy steel plate for structural applications requiring high yield strength combined with good formability and toughness. A514 Grade B has a minimum yield strength of 100 ksi [690 MPa] and may be ordered with supplemental Charpy V-notch impact test requirements.

    Applications

    Typical applications for A514 Grade B include transport trailers, construction equipment, crane booms, mobile man-lifts, agricultural equipment, heavy vehicle frames and chassis, and welded bridge structural members.

    Available Dimensions

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      Thickness
      (inchesmm)
      Width
      (inchesmm)
      Length
      (inchesmm)
      0.188 - 1.2504.78 - 31.75 72 - 1201800 - 3050 240 - 6006100 - 15200
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        Mechanical Properties

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

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          0.2% YS
          (ksi)
          UTS
          (ksi)
          Elongation in 2"
          (min %)
          Reduction of area 1)
          (min %)
          Hardness 2)
          (HBW)
          100 110 - 130 16 35 235 - 293
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            1) Reduction in area for 1.5 in. wide rectangular tension specimen.

            2) 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.

            Charpy V-Notch Impact Toughness requirements may be ordered as a supplementary requirement. Please inquire for applications requiring a specified minimum impact toughness.

            Chemical Composition

            Meets chemical requirements of ASTM A514 Grade B, as shown below (wt % ladle analysis):

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              C
              (%)
              Mn
              (%)
              P 1)
              (max %)
              S 1)
              (max %)
              Si
              (%)
              Cr
              (%)
              Mo
              (%)
              V
              (%)
              Ti 1)
              (%)
              B
              (%)
              0.12 - 0.21 0.70 - 1.00 0.025 0.005 0.20 - 0.35 0.40 - 0.65 0.15 - 0.25 0.03 - 0.08 0.01 - 0.04 0.0005 - 0.005
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                Inquire if a more restrictive chemistry is needed.

                1) Note that SSAB’s P, S and Ti levels are more restrictive than ASTM A514 Grade B requirements.

                Carbon Equivalent CET(CEV)

                (wt %)
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                  Thickness (inchesmm) 0.188 - 1.2504.78 - 31.75
                  Typical CET (wt %) 0.34
                  Typical CEV (wt %) 0.51
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                    Thickness (inchesmm)
                    Typical CET (wt %)
                    0.188 - 1.2504.78 - 31.75
                    0.34
                    Thickness (inchesmm)
                    Typical CEV (wt %)
                    0.188 - 1.2504.78 - 31.75
                    0.51

                    CEV and CET typical values are based on historical averages.

                    CET and CEV formula

                    Tolerances

                    Thickness, width, and length tolerances for A514 Grade B steel plate are in accordance with the requirements of ASTM A6. The flatness tolerance for as-supplied product is ½ ASTM A6.

                    Formability properties

                    ASTM A514 Grade B material exhibits good cold forming characteristics. Shear burrs and heat-affected zones of thermal cut edges on or near the bend axis as well as sharp corners on edges and on gas cut or punched holes located on or adjacent to the bend axis should be removed by grinding prior cold forming. The following recommended minimum inside bend radius, R, and die width opening, W, as a function of bending orientation are provided:

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                      Thickness
                      (in. [mm])
                      Bend Axis Perpendicular to Rolling Direction Inside Radius, R (min.) Bend Axis Perpendicular to Rolling Direction Die Width, W (min.) Bend Axis Parallel to Rolling Direction Inside Radius, R (min.) Bend Axis Parallel to Rolling Direction Die Width, W (min.)
                      0.1875 – 0.75 [4.8 – 19] 1.75t 7t 2.625t 9t
                      >0.75 – 1.00 [>19 – 25.4] 2.25t 8t 3.375t 10t
                      >1.00 – 1.25 [>25.4 – 31.8] 4.5t 12t 6.75t 16t
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                        Weldability

                        Welding of A514 Grade B shall be performed in accordance with the applicable welding code. In the absence of a specified welding code, the following suggested minimum preheat and interpass temperatures and welding consumables are provided. Special welding consumables and welding procedures may be required to avoid detrimental effects on the mechanical properties of the base metal. Low hydrogen practices are strongly recommended, including the removal of surface moisture. A514 Grade B may be susceptible to reheat cracking in the heat-affected zone of welds during stress relieving or postweld heat treatment. As a result, SSAB recommends that a qualified welding engineer consider this potential before stress relieving weldments of this product.

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                          Welding process Thickness
                          (in. [mm])
                          Minimum Preheat and Interpass Temperature
                          (°F [°C])
                          Consumables
                          Shielded Metal Arc (SMAW) Up to 3/4 [19] 50 [10] AWS E10015-X, E10016-X, E10018-X, E10018-M
                          Shielded Metal Arc (SMAW) > 3/4 – 1.25 [19 –31.8] 150 [65] AWS E10015-X, E10016-X, E10018-X, E10018-M
                          Gas Metal Arc (GMAW) Up to 3/4 [19] 50 [10] AWS ER110S-XXX-XX
                          Gas Metal Arc (GMAW) > 3/4 – 1.25 [19 –31.8] 150 [65] AWS ER110S-XXX-XX
                          Submerged Arc (SAW) Up to 3/4 [19] 50 [10] AWS F11XX-EXXX-XX, F11XX-ECXXX-XX
                          Submerged Arc (SAW) > 3/4 – 1.25 [19 –31.8] 150 [65] AWS F11XX-EXXX-XX, F11XX-ECXXX-XX
                          Flux Cored Arc (FCAW) Up to 3/4 [19] 50 [10] AWS E11XTX-X, E11XTX-XM
                          Flux Cored Arc (FCAW) > 3/4 – 1.25 [19 –31.8] 150 [65] AWS E11XTX-X, E11XTX-XM
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