FASTCOOL®-20 LH, pre-hardened to 320±40 HB New!

Products & Technologies > > Cost-Effective Fast-Cooling Tool Steels > FASTCOOL®-20 LH, pre-hardened to 320±40 HB New!


FASTCOOL®-20 LH is a new grade of the high thermal conductivity tool steel family, supplied in prehardened condition of 320 ± 40 HB.  The combination of good mechanical properties and high thermal conductivity, good machinability, and very good polishing and texturing properties of FASTCOOL®-20 LH offers excellent cost advantages for many industrial applications.


  • Tool, die and mold construction - plastic injection molding, blow molding, plastic extrusion

Delivery condition:

  • Pre-hardened to 320±40 HB

Typical Working Hardness Range:

  • 320±40 HB

The above set forth description of material applications is for general information purposes only and must not be interpreted as any express or implied warranty or guarantee of fitness for purpose for such or any other applications.
The Project leading to the upscaling of the product presented here has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 726558. The sole responsibility of this publication lies with the authors. The European Union is not responsible for any use that may be made of the information contained therein.
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