ES Primus SL – special grade

A premium hot work steel for highest requirements

A premium hot work steel for highest requirements. Modern plastics technology as well as high pressure die casting and forging tools put enormous requirements on hot work tool steels. With ES PRIMUS SL we succeeded in meeting the enhanced requirements of different industrial sectors. ES PRIMUS SL itself is a technological refinement of the renowned material 1.2343 ESU which offers additional advantages as mentioned under product features below.  

Product features
  • greater toughness due to 3-D forging
  • improved heat conductivity
  • increased wear protection due to greater hardness
  • excellent machinability
  • special hardening process provides an isotropic structure

Configure & Buy

Flat Bar

We supply rolled or forged flat material as bars, sheets or blocks.

Some steel grades are also available with a pre-milled surface.

Flat Bar

With our optimized machining shop we are in the position to provide you with any requested dimension.

For this we also guarantee you shortest delivery times and  high economic efficiency.


Technical data

Chemical analysis 
C Si Cr Mo V
0,36% 0,3% 5% 1,4% 0,4%


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