40 % of voestalpine production is focused on the mobility sector. This is why the Group is working to ensure global availability of new materials, processes and components for this sector.
The automotive subsupplier industry and OEMs are facing new challenges in lightweight body design. The demand is for lighter, stronger and more corrosion resistant components. Together with worldsteel, voestalpine demonstrated a reduction in body weight of 35% – with the Future Steel Vehicle. At a starting body weight of 290 kg, this means 102 kg less weight for an optimized body weight of 188 kg. This was achieved using ultra-high-strength steels, known as Advanced High Strength Steels (AHSS), which can reach a tensile strength of up to 1200 MPa (as a comparison: steels with tensile strengths ranging from 200 MPa to 1000 MPa are used in series production).
This proves that steel is the ideal material for lightweight body design. Solutions such as phs-ultraform® and ultra-high-strength steels provide the right steel for any application.
Press-hardening steels like phs-ultraform® have the highest tensile strengths, up to 1800 MPa. phs-ultraform®, the flagship for voestalpine press-hardening steels, not only has extremely high tensile strength, it also has excellent cathodic corrosion protection and is ideal for complex component shapes such as A and B pillars, door sills, etc.
Tailored-property parts have enormous potential for lightweight body design, which is why voestalpine focuses especially on this area. Special heat treatment during heating, cooling and after hardening and the use of tailored-welded blanks enables the construction of complex component shapes and special strength processes to absorb the impact of a crash with just a few components.