A Family of 980MPa Tensile Strength Advanced High Strength Steels with Various Mechanical Property Attributes

摘要

Growing issues of lower fuel consumption and increasingly stricter safety standards have prompted automotive manufacturers to the higher strength steels. A particularly strong interest has been shown in a 980MPa tensile high strength steel for safety critical parts. However, different applications and/or manufacturers need, in addition to strength, other property attributes such as ductility, stretch-flangeability or bendability. This paper reports the development, in the laboratory, of a family of such high strength, cold rolled steels with various mechanical property attributes required by various customers.