Highly Workable, 590-980 Mpa Class Galvannealed Steel Sheet For Automobiles

摘要

High tensile strength steel sheets are becoming indispensable for automobile body frames as the requirements become stronger both for the strengthening of body structures to meet collision regulations, and for weight reduction for environmental conservation. Notably, high tensile strength galvannealed steel sheets have been used rapidly for parts that require corrosion resistance (Figure 1). Lately, there is a strong requirement for high tensile strength steel sheets having superior workability for body members, such as lower pillars. Reinforcement require thickness along with workability.