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In a rapidly evolving automotive industry, flexibility wins. ArcelorMittal Multi Part Integration® 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.
MPI uses ArcelorMittal's PHS and patented laser-welding technology to streamline manufacturing and reduce assembly complexity by maximising part integration. This modular solution can be applied across all powertrains and can be used to simplify the design and production of the battery pack, chassis, and body-in-white applications for e-mobility and micro-mobility.
Each MPI module streamlines production, reduces assembly complexity, saves weight, and shortens lead times. These efficiencies have tangible financial benefits, with operational and capital expenditure savings.
Developed in close collaboration with OEMs worldwide, MPI draws on ArcelorMittal’s global reach, track record of innovation, and breadth of experience within the industry. MPI delivers the flexibility today's automotive manufacturers need, as they develop futureproof strategies and rapidly adapt to grow their local and international footprint.
ArcelorMittal’s MPI concept has already been applied to several vehicle parts across projects in three key regions: North America, China, and Europe. The results of the studies show that for every part produced using the MPI concept, significant emission, cost, and process savings are generated. Engineering firms such as Bertrandt and Kuka have provided support in the calculation of these savings.
Based on 6 MPIs combined. If we add other MPIs, performance and savings are likely to increase.
Innovative efficiency for maximum cost impact:
MPI enhances cost-effectiveness through strategic material optimisation, streamlined tooling processes, minimised welding, and competitive capital expenditure benefits.
Streamlined integration for simplified production
MPI reduces the BiW part count, cutting complexity in the assembly shop for a more efficient manufacturing process.
Versatile modularity for maximum flexibility
MPI's compatibility with multiple OEM platforms and all PHS steel grades / thicknesses enables versatile and flexible manufacturing, allowing OEMs to maintain adaptability across various vehicle types and both existing and new manufacturing lines.
Eco-friendly engineering for a sustainable tomorrow
MPI steel solutions reduce CO2 emissions for improved Life Cycle Assessment, optimise material utilisation and nesting while leveraging steel's inherent circularity, paving the way for greener automotive production.
Advanced lightness for optimal performance
MPI is an innovative lightweight steel solution that optimises the vehicles BiW mass by consolidating multiple parts. A core advantage is the compatibility with all high-strength steel grades, providing the highest lightweighting potential.
Enhanced safety for unmatched crash protection
MPI optimises anti-intrusion and energy absorption by using the right steel grade in the right place while applying ArcelorMittal Tailored Blanks proprietary laser ablation technique, ensuring superior protection and safety for every vehicle.
ArcelorMittal’s MPI concept has already been applied to several vehicle parts. The results of the studies show that for every part produced using the MPI concept, significant emission, cost, and process savings are generated.
The following MPI case studies are already complete:
Further studies are under development. The results will be published on this page as they become available. We’re also interested to hear where you'd like to apply MPI in your vehicles.
Contact us for a confidential discussion
A patch is a piece of steel which is welded directly to a ‘mother’ blank before stamping. The steel grade and/or the thickness of the patch can differ from that of the mother blank.
Using a patch enables OEMs to tailor a specific area of a final component. For example, a patched blank can cost-effectively improve a vehicle’s crash performance.
Patched blanks are ideal for managing energy absorption and are already helping automakers to meet crash test requirements.
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.
David Clarke, ArcelorMittal’s head of strategy and chief technology officer, highlights the impact materials have on our planet, and how are we to mitigate the risks, while responding to the global demand for steel.
For the transition to electric vehicles to be fully successful, carmakers must increase efforts to extend range, reduce cost, and enhance safety. A new S-in motion® study from ArcelorMittal reveals that advanced high strength steels (AHSS) solutions are the best choice to achieve this revolution in mobility at an affordable cost. The first part of this study focuses on battery pack solutions.
In the first of a two-part series, Carl de Maré, head of technology strategy at ArcelorMittal explains steel’s role in creating a low-carbon, circular economy that works for everyone.
As the world becomes even more connected, the need for sustainable, carbon-neutral mobility solutions has never been greater than it is today. And while those solutions will look very different to the mobility options we use now, smarter steels will still play a crucial role. Whether it is in autonomous, connected, electrified, or shared solutions, high strength and innovative steels will remain key to mobility.
Press hardenable steels (PHS) offer ultra high strength and the ability to be formed into complex shapes. This makes them ideal for hot stamping processes and enables OEMs to achieve excellent weight reductions across the vehicle.
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.
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.
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.
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.