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Toolox 40 plate

The pre-hardened, exceptionally clean engineering and tool steel

Toolox 40 is a pre-hardened steel suitable for engineering components and mold applications. It possesses good dimensional stability after machining.

Toolox 40 features the same machinability as the conventional P20/1.2311 steel, despite its nearly 100 HBW higher nominal hardness, in combination with the renowned high dimensional stability of Toolox. This makes Toolox 40 your ideal choice in engineering components that require higher strength, or in molds and dies that demand higher wear resistance.

Toolox 40 plate

Typical mechanical values for Toolox 40


Mechanical Properties
Hardness 1)
6 - 130 360 - 420

1) Hardness is measured, according to EN ISO 6506-1, on a milled surface 0.5 - 2 mm below the plate surface.


Impact Properties

Test temperature Impact energy, Charpy-V, transverse direction 2) J
20°C 20

2) Impact testing according to EN 10 025, EN ISO 148 with a 2 mm striker.

Ultrasonic testing
Ultrasonic inspection is carried out according to : EN 10 160 with extra demands according to specification SSAB V6.


More details are given in SSAB’s brochure 41-General Product Information Strenx, Hardox, Armox and Toolox-UK and also available on

Tolerances according to SSAB’s thickness guarantee AccuRollTech. AccuRollTech meets the requirements of EN 10 029 Class C but offers more narrow tolerances.

Length and Width
Tolerances according to EN 10 029.

Flatness tolerances are according to SSAB’s flatness tolerances, which are more restrictive than EN 10 029 Class N (steel type L).

Surface Properties
Surface properties of Toolox 40 are according to EN 10 163-2 Class B, Subclass 3.

Chemical Composition
Chemical composition Toolox 33 Toolox 40 Toolox 44
C 0.22-0.24% 0.28% 0.32%
Si 0.6-1.1% 1.1% 0.6-1.1%
Mn 0.8% 0.6% 0.8%
P Max 0.010% Max 0.010% Max 0.010%
S Max 0.002% Max 0.002% Max 0.002%
Cr 1.0-1.2% 1.22% 1.35%
Mo 0.30% 0.5% 0.80%
V 0.10-0.11% 0.12% 0.14%
Ni Max 1.0% Max 1.0% Max 1.0%
CEIIW 0.62-0.71 0.77-0.81 0.94-0.98
CET 0.40-0.44 0.45-0.50 0.55-0.57
Delivery Conditions

Order & delivery

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

On delivery from SSAB the plates meet the following specifications:

  • free from mill scale
  • not repair welded

Delivery requirements can be found in SSAB’s brochure 41-General product information Strenx, Hardox, Armox and Toolox-UK or

Tech Support

Documents to download

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