As the society paying high attention to environmental protection and rational use of energy science

the automobile industry seeks materials with high strength

good formability and low density to replace traditional automotive materials in order to reduce the dead weight of automobile and meet the social development requirements for energy conservation and emission reduction. Although the current development of new type molding materials such as aluminum alloys

magnesium alloys and titanium alloys are not yet mature. They are only partially applied in automobile manufacturing

and most automotive materials are still mainly steels

so high-strength and lightweight products are developed. Lightweight automotive steel plates have become an important issue in the metallurgical industry. Under the premise of ensuring automobile collisions meeting relevant safety standards

in metallurgical industry

the high-strength and lightweight automobile steel plates has been developed to the third generation represented by Quenching and Partitioning（Q&P）technology

but the first and second generations automobile steel plates are still widely used in the automobile industry and are not completely eliminated. The current application

research and development of lightweight and high-strength automotive steel plates are mainly introduced.