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In 2019, ArcelorMittal Hamburg launched a new project to explore the use of hydrogen for the direct reduction of iron ore in the steel production process. The Hamburg plant is already one of the most efficient in the ArcelorMittal group as it uses natural gas in the direct reduction of iron ore.
The new hydrogen-based process can produce steel with lower CO2 emissions than any existing production process. The process separates very pure hydrogen (+95%) from the top gas of the existing plant. The gas is then used in the direct reduction of iron.
A cooperation agreement has been signed with the University of Freiberg (Germany) which will see researchers test the new procedure at the Hamburg plant. Initially grey hydrogen (less than 95% purity) will be used to assess the process and produce around 100,000 tons of direct reduced iron annually. ArcelorMittal has already allocated €65 million for the project.
The plant should also be able to run on green hydrogen (generated from renewable sources) when it becomes available in sufficient quantities. In the future, a pilot plant may be built to prove that the technology is feasible at an industrial scale.
Launched in October 2017, Siderwin is a radically new iron production process which uses electrolysis technology to produce steel without CO2 emissions. The Siderwin project brings together 12 European partners and follows on from an initial project launched in the early 2000s which explored the use of electrolysis to produce steel at the laboratory level.
The initial project proved that electrolysis can be used to produce a few kilos of iron. Siderwin changes the scale. A large pilot unit will be installed at ArcelorMittal’s Maizières (France) research campus and should be able to produce up to a hundred kilograms of iron metal.
Electrolysis technology has the advantage of flexibility. That means the iron metal production process can be interrupted, a key benefit in facilitating the incorporation of intermittent renewable energy into the electricity grid. Over the next two to three years, the operation of the Siderwin unit will simulate the effect of the process on electricity supply.
As Siderwin replaces carbon with electricity, it eliminates the need for agglomeration and coking plants. Instead, the blast furnace would run on electricity and oxygen would be the only gas emitted. Even the formulation process would be simplified. For example, adjustments to the metal’s chemistry (to achieve a specific grade) can be done by adding carbon as the iron plates, produced by electrolysis, are melted.
The Siderwin process
In a rapidly evolving automotive industry, flexibility wins. ArcelorMittal Multi Part Integration® (MPI) maximises automotive manufacturers’ ability to adapt through the power of less: less parts, less process, less floor space, less time, less materials, less CO2 and less assembly cost.
Harness the strength of steel and the power of less.
For the past four years, ArcelorMittal's XCarb® initiative has been shaping the future of sustainable steel in the automotive industry. Through pioneering advancements and strategic collaborations, XCarb® recycled and renewably produced steel has played a critical role in reducing the carbon footprint of vehicles while maintaining the highest standards of safety and performance.
Video: ArcelorMittal and TRUMPF collaborate to revolutionise automotive manufacturing with precise laser-cutting technology. This partnership combines ArcelorMittal’s expertise in advanced automotive steel with TRUMPF’s cutting-edge laser technology, enabling the precise shaping of laser-welded, hot-stamped MPI parts for modern vehicle design.
ArcelorMittal has been working with automakers for years to co-engineer steel solutions that address safety, strength and fuel economy concerns in the most cost-effective way. ArcelorMittal offers an array of lightweight steel solutions and has seen tremendous growth and evolution of its door ring solution, co-engineered with Honda R&D Americas.
To prove the validity of the MPI concept, teams from ArcelorMittal Tailored Blanks and ArcelorMittal Global R&D have developed a new LWB H-Frame solution for the rear of an SUV vehicle. The S-in motion® SUV was used as the basis for the design.
ArcelorMittal is transforming the auto industry from the inside out. ArcelorMittal, the world’s leading steel and mining company, is continually developing lightweight steel solutions that make vehicles lighter, safer and more sustainable.
Zagnelis® coatings have been specially designed to add a stage in vehicle corrosion protection, while meeting vehicle manufacturers' specifications: drawing, welding properties etc. In particular, they offer corrosion resistance far superior to that provided by traditional zinc-based coatings. The presence of magnesium in the coating promotes the formation of compact corrosion products highly stable over time, thereby substantially reducing coating consumption dynamics and enhancing edge protection.
Zagnelis® coatings also offer excellent drawability performance due to outstanding tribological properties for a zinc-based coating.
The automotive landscape is rapidly evolving, driven by the electrification of vehicles and the emergence of new market players. As carmakers navigate the complexities of balancing internal combustion engine (ICE) and battery electric vehicle (BEV) production, ArcelorMittal’s Multi Part Integration® (MPI) offers a transformative approach. This white paper discusses how MPI technology helps streamline automotive manufacturing, reduce the number of parts, and achieve significant CO2 savings—all while meeting stringent performance standards for safety and lightweighting.
PSA award recognises the value ArcelorMittal adds to the partnership. Both companies work together to create the vehicles of the future with the next generation of steel solutions.
ArcelorMittal is proud to spotlight its collaboration with Renault Group and its contribution to the innovative Renault Emblème project, a demo car designed to meet the challenges of low-carbon mobility. This collaboration is a testament to both companies' commitment to innovation and sustainability, demonstrating how the automotive and steel industries can unite to achieve ambitious decarbonisation goals.
ArcelorMittal has once again been recognised by CDP for its strong performance in corporate transparency and action on climate change. ArcelorMittal successfully retained its A- score in the 2020 CDP Climate Change assessment, putting the company within the top quartile of all metal smelting, refining and forming companies and the top 10% of the steel industry.
ArcelorMittal announced that it is proceeding with plans to build an advanced, non-grain-oriented electrical steel (NOES) manufacturing facility in Alabama (USA). The new facility, wholly owned by ArcelorMittal, will be capable of producing up to 150,000 metric tons of NOES annually, depending on the product mix, in support of automotive and mobility, and other industrial and commercial uses of NOES, including electric motors, generators, and specialized applications.