German recycler TSR Group and thyssenkrupp Steel have signed a long-term supply agreement for TSR’s proprietary recycled product, TSR40, Kallanish learns.
TSR40 is made exclusively from post-consumer material such as end-of-life vehicles or mixed scrap. It has been produced on an industrial scale at TSR’s recycling plant in Duisburg since 2023 and, since 2024, also in Hamburg and Amsterdam.
The specification guaranteed by TSR qualifies the material for the blast furnace at tk Steel, reducing CO2 emissions and thus forming the basis for its bluemint steel. According to tk Steel, strip made from bluemint is suitable for all usual applications, like automotive, packaging, household appliance industries, transformers, wind turbines, and electromobility.
Except for its reduced specific CO2 emissions, the material properties of bluemint Steel do not differ from those of conventionally produced steel grades, tk Steel claims.
TSR’s Duisburg facility started operating in May 2025, to process up to 450,000 tonnes/year of input material into TSR40. It was developed in cooperation with tk Steel as part of the publicly sponsored REDERS research project. REDERS is a German acronym for “reducing CO2 emissions by increasing the rate of recycled materials in steel production”.
