Thermodur 2383 Supercool — Hot Work Tool Steel for Press Hardening

This content has been provided by Deutsche Edelstahlwerke (DEW).

Thermodur 2383 Supercool is a hot work tool steel developed specifically for press hardening applications by Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG.

Composition and properties

In addition to 0.45 % carbon, Thermodur 2383 Supercool exhibits a chemical composition of 1.5 % vanadium, 1.5 % molybdenum, 0.9 % manganese and 0.9 % nickel. It possesses excellent thermal conductivity (44 W/(m⋅K) at 100 °C) as well as good wear resistance, through-hardenability, long-term tempering resistance and high-temperature strength.

As a result of these properties, Thermodur 2383 Supercool is ideal for mould inserts in press hardening tools. These are currently used in the forming of automotive body parts.


In press hardening processes, steels are heated to austenitizing temperature before being transferred to a press tool featuring active cooling. The steel is then quenched and formed simultaneously. This allows ultra-high-strength steels to be formed into complex shapes, enabling replacement of expensive light metal alloys with thinner, stronger steels, an essential factor in the competitive automotive industry.

Thermodur 2383 Supercool advantages

Specifically, the high thermal conductivity of Thermodur 2383 Supercool, in comparison to conventional hot-work steels such as 1.2343 (AISI H11), 1.2344 (AISI H13) and 1.2367 (X38CrMoV5-3) in quenched and tempered condition, enables enhanced quenching uniformity as well as faster quenching, thereby allowing for reduced cycle times.


*This special steel is available from Deutsche Edelstahlwerke in plate form.


Article by Deutsche Edelstahlwerke (DEW)

Deutsche Edelstahlwerke (DEW) is one of the world’s leading producers and processors of special steel long products and belongs to the Swiss Steel Group. In the three materials groups – engineering steel, tool steel and stainless, acid and heat resistant steel – Deutsche Edelstahlwerke offers international customers a uniquely wide range of product dimensions, from drawn wire with a diameter of 4.5 mm to open-die forgings with a diameter of 1,100 mm. As a partner with technical competence in steel, Deutsche Edelstahlwerke develops innovative, individual special steel solutions for complex high-tech applications and offers services ranging from steelmaking to extensive steel processing and steel finishing.

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Deutsche Edelstahlwerke is the leading producer of long high-grade steel products. The products range from drawn wire with a diameter of 5.0 mm all the way to forged products with a diameter of 1100 mm.

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Ferro-Titanit is the name of the carbide-alloyed materials of Deutsche Edelstahlwerke produced by powder metallurgy, uniting the properties of steel and cemented carbides.

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  • Outstanding thermal conductivity
  • Good wear resistance
  • Good through-hardenabilty
  • Best long-time tempering resistance
  • Good high-temperature strength