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TOOLOX® 33 – The pre-hardened, exceptionally clean tool and engineering steel

Toolox® 33 is a pre-hardened steel suitable for tools and engineering components. It possesses good dimensional stability after machining.
Delivered in quenched and tempered condition, Toolox® 33 features high impact toughness and very low residual stresses to achieve good dimensional stability after machining. Toolox® 33 is suitable for mold and dies as well as tooling and engineering components. By using the proper surface engineering methods, you can significantly extend the service life of your tools and components.

Available Standards

EN 10029


Toolox® 33 in knife support cuts downtime at recycling plant

The challenge
Equipment for recycling plays a crucial role in environmental stewardship. And as any maintenance manager at a recycling plant knows, a healthy recycling business depends on healthy equipment. It’s no wonder, then, that managers view equipment uptime as their top priority. So when one manager’s wood recycling machine broke down after failure of the machine’s knife support, he started looking for a reliable solution.

The solution
The maintenance manager turned to Toolox® 33. The strength of Toolox®, combined with its superior properties in the workshop, made it the ideal solution. And since Toolox® 33 was available at the SSAB distributor Industrias Trimar, close to the recycling plant, machine downtime could be kept to a minimum.

Customer benefits
Toolox® brought the following benefits:

 Its low carbon content significantly increased machining speed.

 Its low stress level made it easy to achieve the close tolerances required by the support.

 Guaranteed high homogeneity within and between plates assured top quality.

SSAB’s unique quality control process — each and every plate is individually tested according to strict standards — ultimately helped the plant optimize its operations, benefiting both the environment and the business.

Toolox® 33 improves recycling machine performance

Spanish machining workshop Herso SL has long been specializing in machinery for the plastics and rubber industry. Companies often turn to Herso as their first choice for meeting their machinery maintenance needs. That’s just what happened when a recycling plant decided they needed to repair their recycling equipment for rubber car tires.

The challenge
Herso knows that guaranteeing high-quality steels for recycling equipment is crucial — something that’s increasingly difficult to control using conventional alloy steels. The market often offers a mix of steels with different origins and therefore different properties. And most steel distributors don’t state who has manufactured the steel, complicating quality control even more. The company needed to fully assure high quality while not raising the price to its end customer.

The solution
For two of the most sensitive components in the machine, Herso decided to use Toolox® 33. Since Toolox® 33 plates are tested individually and come with a product certificate stating the test values, Herso gained peace of mind knowing exactly what their steel contained. Manufactured in quenched and tempered plates, Toolox® exhibits a more homogenous structure than the large, forged round bars that would have been the alternative.

Customer benefits
Using Toolox®, Herso can expect increased overall performance of the recycling machine pieces. The Toolox® plates bring the following benefits:

 Higher strength along with increased crack resistance

 Measured and guaranteed quality

 Less machining and consumption of inserts

 Oxy-cutting capabilities without the risk of cracks or excessive hardness in the edge, thanks to the low carbon content of the steel.

Download Datasheet

Mechanical Properties

Mechanical Properties

Thickness (mm) Hardness 1) (HBW)
6 - 130 275 - 325

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, Min J 2)
20 °C 35

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 10029.

Flatness tolerances are according to SSAB’s flatness tolerances,which are more restrictive than EN 10029 Class N (steel type L).

Surface Properties
Surface properties of Toolox 33 are according to EN 10163-2 Class B, Subclass 3.


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