Abstract: At present the application of high strength steel increases obviously in body mass reduction solution scheme of car design to decrease the body mass by more than 20% , but is still lower 由an the index where using aluminium or aluminium-magnesium alloy to decrease the body mass by 40% , The future design idea for steel car body is the goal to decrease the body mass by 35% in the way of development of third generation high strength steels, new body parts manufacturing process and forming design. The characteristics of high strength steels, the body mass reduction solution scheme and selection of materials, and the grades, chemical composition, properties, application progress and forecast of high strength steels are presented in this paper.

Key words: High Strength Steel, Car Body, Progress of Application

摘要： 目前轿车设计车身减重方案中高强度钢的应用明显增加,车身减重达20%以上,但仍低于铝或铝镁合金车身减重40%的指标。未来钢制车身的设计理念将通过开发的第3代高强度钢和新的车身零部件加工及成型设计,达到车身减重35%的目标。文中介绍高强度钢的特点,车身减重设计方案及材料选择,高强度钢的钢种成分、性能、应用进展和展望。

关键词: 高强度钢, 轿车车身, 应用进展