Dr. Jan Daldrop

Business Unit Lead at Smart Steel Technologies

Abstract: AI-drive temperature control at Marienhütte Graz: Energy savings and improved process control

Marienhütte Graz is a highly specialized steel mill that produces rebars in different dimensions and qualities at its shop in the centre of Graz. The shop operates an AC Electric Arc Furnace with modern injection technology, a ladle furnace, and a two-strand billet caster. For optimal temperature control, Marienhütte Graz has recently introduced the software SST Temperature AI developed by Smart Steel Technologies GmbH. The software uses neural networks and other machine learning algorithms to compute temperature estimates and recommendations 24/7 with high precision and low latency for all melt shop processes and each heat. It is fully integrated with Marienhütte’s production automation system.

By using SST Temperature AI, Marienhütte Graz has stabilized the entire process chain while saving energy thanks to a reduced overall temperature level. A systematic evaluation has shown that when SST Temperature AI is used the EAF tapping temperature is reduced by up to 10 Kelvin compared to a reference period.


Dr. Jan Daldrop is business unit lead (machine learning) at Smart Steel Technologies (SST) with a focus on the applications of artificial intelligence algorithms to steelmaking. He is leading the development of the key software products of Smart Steel Technologies, which include SST Energy AI, SST Temperature AI, SST Casting AI, SST Rolling AI and SST Surface AI.