JFE TECHNICAL REPORT

No.18 April 2013 - Special Issue on "Steel Products for Energy Industries" and "Steel Sheets for Automotive and Electric Machinery and Appliance"

Cold-Rolled and Galvannealed (GA) High Strength Steel Sheets for Automotive Cabin Structure


HASEGAWA Kohei       KANEKO Shinjiro       SETO Kazuhiro

Abstract

JFE Steel has developed and commercialized a series of cold-rolled and galvannealed (GA) high strength steel sheets which are suitable for automotive body structural parts. High strength steels are required a wide variety of strength grades and the superior formability, such as stretch-formability, stretch-flangeability and bendability, which meets a forming method and the shape of forming parts. Adequate spot-weldability and corrosion resistance after painting are also necessary for them. Besides, anti-hydrogen embrittlement property is important especially to those of higher tensile strength grade than 1 180 MPa. JFE Steel's sheet products for automotive body structural parts have met the various demands by optimal material design and precise process control with featured production facilities. Developed cold-rolled and GA high strength steels have been widely applied to great numbers of automotive parts and are expected to serve further weight reduction of car bodies in future.

Full Pages

Get Adobe Reader

To view this document you need the Adobe Reader,
available for free at the Adobe Web Site.