Japanese steel giant Nippon Steel Corporation has developed a new NSafe AutoConcept (NSAC) for automotive bodies. With its help, the weight of steel can be reduced to the level of aluminum with higher strength.
Nippon Steel is the main supplier of steel for Japanese cars. NSAC’s vision is based on the maximum possible use of high tenacity grades, as well as on the development of even more advanced grades. It is proposed to increase the share of rolled steel made of an alloy with a tensile strength of 1470 MPa and 2000 MPa (for hot stamping) in the load-bearing body frames, and high-strength steel of the 980 MPa class in the chassis components.
To improve hot stamping performance, Nippon Steel has developed direct liquid cooling technology that uses ordinary water as the refrigerant. This allows you to significantly reduce production costs and overcome the effect of material adhesion to the surface of the molding press.
Nippon Steel also offers computer-aided mathematical modeling of the structure of materials. This will increase the efficiency of torsional stiffness calculations and crash test simulations. This approach helps to reduce the cost of conducting field tests.