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 0.827 - 13.898". Other dimensions can be available on request.

Mechanical Properties

Diameter (inmm)
Diameter (inmm)
0.827 - 5.55121.0 - 141.0
Hardness 1)
(HBW)
410 - 475
Yield strength Rp0.2
(min ksiMPa)
1591100
Tensile strength Rm
(min ksiMPa)
1811250
Elongation A5
(min %)
8
Diameter (inmm)
Diameter (inmm)
5.591 - 13.898142.0 - 353.0
Hardness 1)
(HBW)
410 - 475
Yield strength Rp0.2
(min ksiMPa)
—
Tensile strength Rm
(min ksiMPa)
—
Elongation A5
(min %)
—

1) Hardness is measured, according to EN ISO 6506-1, on a milled surface 0.020 - 0.079" below the plate surface. Bar hardness is measured on a milled surface, with indents positioned as impact test according to EN 10083.

Impact Properties

Diameter (inmm)
Diameter (inmm)
0.827 - 5.55121.0 - 141.0
Min. impact energy for longitudinal testing,
Charpy V 0.393x0.393" test specimen 1)
13 ft-lbs / 68 °F18 J / 20 °C
Diameter (inmm)
Diameter (inmm)
5.591 - 13.898142.0 - 353.0
Min. impact energy for longitudinal testing,
Charpy V 0.393x0.393" test specimen 1)
8 ft-lbs / 68 °F11 J / 20 °C

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 1094 °F.

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 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.