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

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

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

Diameter (mmin)
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)
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

pdf384 Kb

Toolox® in engineering applications

pdf1.34 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.