Sheet metal blank thickness 45 mm Toolox 33

Basic Characteristics

Designation: Toolox 33
Manufacturer: SSAB (Sweden)
Steel type: Pre-hardened tool steel / engineering steel
Hardness (as delivered): approx. 300 HB (32–35 HRC)
Tensile strength: approx. 1100 MPa
Delivery condition: quenched and tempered

Properties

• Excellent dimensional stability after machining and thermal stress

• High toughness even in large cross-sections

• Good machinability due to homogeneous microstructure

• Can be nitrided and surface-hardened

• Low internal stresses – ideal for precision molds and tool holders

• Suitable for polishing and etching of surfaces

Typical Applications

• Plastic molds (especially where hardness requirements are moderate)

• Mold and die holders

• Structural parts subjected to dynamic loads

• Carriers, frame components, mounting plates

• Fixtures and clamping devices

Chemical Composition (typical values, %)

Heat Treatment

Toolox 33 is supplied in a pre-hardened condition and does not require further heat treatment.
It may be slightly tempered (up to 550 °C) for stress relief or nitrided to increase surface hardness.

Machinability and Welding

• Good machinability (better than conventional hardened tool steels)

• Weldable, but preheating to 200–250 °C and slow cooling are recommended

• Use low-hydrogen electrodes for best results