Toolox® 44 Round Bars

Pre-hardened, precise, predictable steel, now in round bars

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General Product Description

Pre-hardened, precise, predictable steel, now in round bars.

Toolox® round bars are pre-hardened, ready-to-use quenched and tempered tool steels that come in a wide range of diameters from small to large.

Suitable for engineering applications in tool holders and in different types of shafts and rolls, the diameter dimensions also provide a better solution for round parts in tooling applications like molding and in dies for aluminium die casting.

Dimension Range

Toolox® 44 round bars is available in diameters 21.0 - 353.0 mm. Other dimensions can be available on request.

Mechanical Properties

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    Diameter (mmin) Hardness 1)
    (HBW)
    Yield strength Rp0.2
    (min MPaksi)
    Tensile strength Rm
    (min MPaksi)
    Elongation A5
    (min %)
    21.0 - 141.00.827 - 5.551 410 - 475 1100159 1250181 8
    142.0 - 353.05.591 - 13.898 410 - 475
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    Comparison

      1) Hardness is measured, according to EN ISO 6506-1, on a milled surface 12.5 mm below the ordered diameter. Bar hardness is measured on a milled surface, with indents positioned as impact test according to EN 10083.

      Impact Properties

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        Diameter (mmin) Min. impact energy for longitudinal testing,
        Charpy V 10x10 mm test specimen 1)
        21.0 - 141.00.827 - 5.551 18 J / 20 °C13 ft-lbs / 68 °F
        142.0 - 353.05.591 - 13.898 11 J / 20 °C8 ft-lbs / 68 °F
        Compare parameters

        Select one parameter to compare

        Comparison

          Diameter (mmin)
          21.0 - 141.00.827 - 5.551
          Min. impact energy for longitudinal testing,
          Charpy V 10x10 mm test specimen 1)
          18 J / 20 °C13 ft-lbs / 68 °F
          Diameter (mmin)
          142.0 - 353.05.591 - 13.898
          Min. impact energy for longitudinal testing,
          Charpy V 10x10 mm test specimen 1)
          11 J / 20 °C8 ft-lbs / 68 °F

          1) Impact testing according to EN 10083.

          Ultrasonic testing

          Ultrasonic inspection is carried out according to: EN 10308 with extra demands according to specification SSAB V6.

          Tolerances

          Tolerances for Toolox® round bars are according to EN 10060.

          For more information concerning dimensions and tolerances, see Toolox® round bars dimensional program: Toolox® engineering & tool steel dimensional program bars or Toolox® Guarantees available at www.ssab.com or www.toolox.com.

          Delivery Conditions

          Quenched and Tempered at a minimum temperature of 590 °C.

          On delivery from SSAB the round bars meet the following specifications:

          • Free from mill scale
          • Not repair welded

          Delivery requirements can be found in SSAB’s brochure Toolox® Guarantees or at www.toolox.com.


          Recommendations and instructions

          pdf 384 Kb
          Toolox® in engineering applications
          pdf 1.34 Mb
          Machining recommendations for Toolox®

          Used for

          • Tooling & Engineering
          • High temperatures (up to 590°C)

          Available standard

          • EN10060

          High-strength engineering tool steel

          The new generation of tool steel.