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                            Time is money – enhanced machinability steels helps saving              13.10.2022  

Engine pistons – the heart of today‘s internal combustion enginges (ICE) – are subjected to demanding operating conditions. especially in terms of temperature as well as pressure. Thus especially for heavy duty diesel engines this leads in some cases to the preference of steel over aluminum.

Required steel material properties for pistons to withstand such operating conditions typically are tedious and therefore costly  to machine during piston manufacturing. With this in mind, three different steel grades have been selected in order to improve machinability and reduce costs: 42CrMo4 as a reference, 42CrMo4R with high sulphur content, and 42CrMo4MB with bismuth addition. However, to unleash the full cost saving potential of these steels for monoblock pistons require new joining technologies. Stir4Steel will work.

Chemical composition of selected enhaced-machinability steels for case III

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This project has received funding from the Research Fund for Coal and Steel, a programme managed by the European Commission, supporting research in the coal and steel sectors in Europe under grant agreement No. 101034068. 

© 2024 Stir4Steel

Facts and Figures

  • Start date:     1st of September 2021

  • Duration:       36 months

  • EC Funding:  EUR 1.17 M

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