Synergistic Steel Saga Strengthens Sustainable Supply Chain

The Salzgitter Group, one of Germany’s leading steelmakers, and Volvo Cars, the iconic Swedish automaker, are deepening their partnership through a fully circular closed-loop model that reflects their shared commitment to sustainability. Starting in 2026, steel scrap generated during the manufacture of car body parts at Volvo’s Olofström facility will be sent back to Salzgitter Flachstahl GmbH, where it will be melted down and reprocessed into new steel coils. These coils, in turn, will be shipped back to Volvo, completing a clean, closed cycle that preserves material quality and significantly reduces waste.

Decarbonisation Drive Deepens Through Dual‑Direction Delivery

Transporting steel across borders often leads to inefficient logistics, with full loads delivered in one direction and empty wagons returning. This partnership, however, eliminates such inefficiencies through a new shuttle concept developed with DB Cargo. Trains carrying steel coils from Salzgitter to Sweden will now return loaded with high-grade scrap, ensuring maximum utilisation on both legs of the journey. The 700-kilometre route will be operated using interoperable, electric-powered locomotives fueled by 100% climate-neutral electricity, marking a major shift toward low-emission material logistics.

Material Metamorphosis Maintains Metallurgical Merit

The type of scrap produced at Volvo’s Olofström plant, clean, uniform, and high-quality, is particularly well-suited for closed-loop recycling. Unlike lower-grade or mixed-use scrap, this material does not need extensive sorting or reprocessing, allowing it to be directly used in electric arc furnaces with minimal degradation. “This is about keeping premium steel in the cycle,” noted a Salzgitter process engineer. “No downcycling. No loss in mechanical properties. Just clean steel, over and over again.” This supports consistent quality for automotive standards, where safety and performance tolerances are strict.

Circular Collaboration Champions Climate-Conscious Craftsmanship

This project aligns tightly with the SALCOS®, Salzgitter Low CO₂ Steelmaking, transformation program, which aims to cut CO₂ emissions from steelmaking by more than 95% by transitioning to hydrogen and EAF technologies. Volvo, for its part, aims to be a fully climate-neutral company by 2040, with an interim goal of using 35% recycled or bio-based materials in its cars by 2025. “This cooperation is a clear confirmation of our circularity strategy,” said Sandrina Sieverdingbeck, Managing Director of DEUMU, a Salzgitter subsidiary responsible for scrap management. “It proves how industrial partnerships can drive both decarbonisation and resource efficiency.”

Rail Reinvention Reinforces Resourceful Returns

The logistics model is equally innovative. In contrast to current single-wagon consignments, which are slower, harder to coordinate, and prone to underutilisation, the new system will run as a fixed-time shuttle service, ensuring predictability and speed. Trains will be configured for maximum volume and will avoid the need to switch locomotives at international borders thanks to interoperability features. DB Cargo will manage both outbound (coils) and return (scrap) legs, guaranteeing that no empty cars travel the route. This rail renaissance not only saves emissions but also lowers operational costs and transit delays.

Scrap Strategy Supports Salzgitter’s Sustainable Steel Symphony

In the SALCOS® model, scrap plays a crucial role as the primary input for electric arc steelmaking. By sourcing certified, clean scrap from partners like Volvo, Salzgitter ensures traceability and stability in feedstock supply, a critical factor as green steel demand surges. The EAF route emits up to 75% less CO₂ per metric ton than traditional blast furnaces. Salzgitter is also exploring hydrogen injection and direct reduced iron processes to further improve the sustainability of its steelmaking. The closed-loop partnership acts as a pilot for integrating other industrial scrap sources in similar cycles.

European Example Establishes Ecological Excellence

While the Salzgitter–Volvo partnership spans only two countries, it has broader European significance. It exemplifies how industrial loops can transcend borders without sacrificing sustainability. Amid rising carbon prices, stricter EU emissions trading rules, and greater consumer scrutiny of supply chains, closed-loop models offer operational, regulatory, and reputational benefits. “This initiative shows that advanced recycling and premium quality are not mutually exclusive,” commented a Volvo sustainability manager. “It is entirely possible to meet high design and safety standards while reducing emissions and waste.”

Forward‑Facing Framework Fosters Flexible Futures

Although the system begins with steel, both companies envision expansion into other materials. Volvo is currently studying similar return loops for aluminium body panels and battery casing components. Salzgitter is looking at replicating the model with appliance makers, heavy equipment firms, and even aerospace suppliers. Moreover, digital tracking tools are being integrated into the closed-loop, enabling real-time data on material flow, carbon intensity, and compliance. The 2026 launch is only the beginning, this is a scalable, flexible architecture for circularity that could redefine manufacturing norms across Europe and beyond.

Key Takeaways:

• Salzgitter Group and Volvo Cars will establish a closed-loop steel recycling system from 2026, returning steel scrap from Volvo’s Olofström plant to Salzgitter’s EAF-powered low-CO₂ steelmaking

• DB Cargo will operate a dedicated rail shuttle using renewable electricity, eliminating empty runs and cutting emissions on the 700 km route between Germany and Sweden

• The model supports Salzgitter’s SALCOS® decarbonisation program and Volvo’s sustainability targets, serving as a template for wider circular economy initiatives in the automotive sector