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ArcelorMittal Europe – Flat Products

Online client newsletter | June 2023

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Sustainability simplified

Jesse Paegle,
Automotive Steel Solution Director, ArcelorMittal Europe

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ArcelorMittal’s Multi Part Integration™ (MPI) concept allows multiple vehicle components to be integrated into one large laser welded blank. It is one of the most cost-effective ways for carmakers to develop and deploy sustainable mobility solutions while simplifying vehicle design and production.




MPI demonstrates ArcelorMittal’s deep understanding of the changing landscape in the automotive industry. This includes the introduction of different powertrain technologies and the need for adaptable, modular solutions. Automakers can use MPI to efficiently streamline production, reduce costs, and adapt to evolving industry needs.

MPI parts still meet all relevant safety requirements as the most advanced high strength steels are used in the right thickness and ductility – in the right place. ArcelorMittal has already developed a range of MPI solutions and all of them have been validated against international vehicle crash standards.

Dash panel Rear floor panel Rear H-frame Double door ring outer Double door ring inner Floor reinforcement
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The possibilities to simplify vehicle manufacturing with ArcelorMittal’s Multi Part Integration™ (MPI) are endless.

Simplifying design and production helps to make mobility more sustainable. Vehicles are easier to produce, less steel is required, and MPI parts can be applied across different powertrain platforms. This leads to savings in time, mass, costs, and emissions.

Let’s take the rear chassis H-frame solution as an example. Using MPI to produce the H-frame reduces the number of parts from 11 to 1. That eliminates 80 spot welds on the assembly line, accelerating production. Mass is also reduced significantly – up to 15-percent per H-frame.

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ArcelorMittal’s chassis rear H-frame

Improving nesting during the cutting process reduces the amount of steel initially required. This has a corresponding reduction on CO2-equivalent emissions and highlights the sustainability benefits of using less material in automotive design and production.

Cost is another area where savings are found with MPI. The savings mentioned above lead to a 10-percent reduction in the cost of an H-frame. And the investment required to produce that part is around 18-percent lower.

Copyright: ArcelorMittal

ArcelorMittal’s double door ring

ArcelorMittal started with a single door ring, but the MPI principal has been applied to other components including: double door rings, floor reinforcements, dash panels, rear floor panels… the possibilities are endless. Vehicles with MPI parts are already on the roads of Asia, Europe, and North America. In each case, ArcelorMittal’s Global R&D team worked with the OEM’s design team to finalise the part’s design and material selection.

There is no revolutionary material or process – just simplification. And it can be applied today, also thanks to the close cooperation with the entire supply chain.

Jesse Paegle,
Automotive Steel Solution Director, ArcelorMittal Europe


If you’d like to know more, get in touch with your usual ArcelorMittal contact or visit:
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