Applications of Dual Phase Steels :-

 Given their high energy absorption capacity and fatigue strength, cold rolled Dual Phase Steels are particularly well suited for automotive structural and safety parts such as longitudinal beams, cross members and reinforcements.
Example:- DP Steels are used in many Parts of Car & automotive industry.

What is Dual Phase Steel ?

Dual phase steels are an important branch of high strength low alloy (HSLA) steels. These materials have a combination of specific mechanical properties such as high tensile strength, high work hardening rate at early stages of plastic deformation as well as good ductility, which distinguishes them among HSLA steels . These favorable properties are definitely related to typical microstructure of dual phase steels in which, soft ferritic network provides good ductility; while, hard particles and martensite phase play the load bearing role. This microstructure, in fact, shows some kind of metallic composite. Beside these features, properties such as continuous yielding behavior, uniform plastic deformation and high elongation (good formability) are important features of dual phase steels.

                                                               Fig.1)Dual Phase Steels