Steel has an advantage compared to some other lightweight materials, as it emits less CO2 when being produced. For car manufacturers using Docol®, this translates to a strong argument for sustainability. By comparing the production of steel to the production of aluminum, carbon fiber reinforced plastics and magnesium, it is seen that steel production causes less greenhouse gas emissions. Docol® AHSS is produced in one of the world’s cleanest steel production processes, which means emissions are even lower.
For a smaller vehicle the savings are smaller. In this scenario, 170 kg of Docol® 800 high strength steel replaces 200 kg of 500 MPa material in the chassis. And in the crash components, 85 kg of Docol® 1400 steel replaces 100 kg of 1,000 MPa material. This means a total weight reduction of 15% for the upgraded parts, i.e. 45 kgs, which reduces the car’s fuel consumption by approximately 1.3%.
Together with our customers, SSAB continually upgrades steel and equipment designs. SSAB EcoUpgraded saves CO2 both in steel production and during the full lifetime of the machine. From the CO2 payback time and onwards, every extra hour brings additional savings.