Nissan Motor Co., Ltd. will be more extensively using Advanced High Tensile Strength Steel (AHSS). In fact, it will account for up to 25% of the vehicle parts (as measured by weight) placed in its new production models. Beginning in 2017, Nissan will utilize advanced high tensile strength steel as part of its strategy to make its vehicles lighter.
Nissan has undertaken the development of 1.2 gigapascal (GPa) Ultra High Tensile Strength Steel with High Formability, which was used in the new Infiniti Q50 that starts selling in North America in 2013. Before the 1.2GPa ultra high strength steel was developed, it had been very hard to make use of high tensile steels for vehicle parts that have very complex shapes.
Nissan is still the only auto manufacturer that uses 1.2 GPa Ultra High Tensile Strength Steel with High Formability. Nissan will be able to raise the AHSS’s adoption rate up to 25% of the gross weight of the parts used on each vehicle after it actively makes use of 1.2 GPa ultra high strength steel, which is one grade among many kinds of advanced high tensile strength steels.
This move will start in 2017 and will seek to make Nissan vehicles lighter by 15% with the resultant body structure rationalization.
The 1.2 GPa Ultra High Tensile Strength Steel with High Formability, which was jointly developed, uses an optimal combination of materials. This leads to greater elongation and provides strength and high formability in order to build lighter-weight steel sheets.
With these characteristics, it can be used for components with complicated forms. The 1.2GPa Ultra High Tensile Strength Steel with Formability can then be combined with high-precision die design and a welding process appropriate for materials during production. This means that this steel can then be used to produce more car parts.