ahss-high-ductility: SLIMulations

ahss high-ductility dual-phase and complex-phase steels are the benchmark in ultra-high-strength steels for crash-relevant components. With their unique bending properties and outstanding deep-drawing characteristics, ahss high-ductility steels provide a time-tested alternative to press-hardening steels. The original steels of specific components were compared in the SLIMulations with possible ahss high-ductility steels and crash tests simulated. The comparison is based on a 5-star-safety mid-size car (source: NCAP).

ahss-high-ductility: SLIMulations

Component (Selection) 

Originally used steel 

Weight savings in % 

voestalpine grade 

Front side member closure panel

CR440Y780T-DP
- 25 %CR850Y1180T-DH
Seat crossmember
CR330Y590T-DP
- 20 %
CR700Y980T-DH
Sill outer part
CR440Y780T-DP
- 20 %CR780Y980T-CH
Rear crash box
CR300LA
- 25 %CR780Y980T-CH
Rear bumper
CR440Y780T-DP
- 20 %CR850Y1180T-DH

Test simulations

Front Crash Rigid Wall – 56 km/h

Side Pole Crash Test – 32 km/h

Rear Crash Test with moving Barrier - 48 km/h

Rear Insurance Test with moving Barrier - 15 km/h

Further Information