FASTCOOL®-55, hardenable up to 53 HRc

Products & Technologies > > Cost-Effective Fast-Cooling Tool Steels > FASTCOOL®-55, hardenable up to 53 HRc


FASTCOOL®-55 is a high performance hot work steel grade of ROVALMA’s high thermal conductivity tool steel family, combining very high levels of thermal conductivity with excellent behaviour at high temperatures: high yield strength, toughness, wear and tempering resistance; can be nitrided and coated - for detailed information please contact ROVALMA.


  • Tool, die and mold construction – particularly designed for hot forging, light alloys casting, hot calibration processes, aluminum and brass extrusion.
  • Other engineering applications that benefit from a combination of high thermal conductivity, high yield strength at high temperatures, good toughness, temper resistance and wear resistance.

Delivery condition:

  • Annealed ~ 360/380 HB

Typical Working Hardness Range:

  • 44 - 53 HRc

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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