Abstract: The present invention relates to an impact beam for use in a vehicle. More specifically, the invention relates to an impact beam comprising precipitation hardenable stainless steel, and a method of producing such a beam. The precipitation hardenable stainless steel has a composition, all in percent by weight, of: C max 0.07 Si max 1.2 Mn max 0.7 Cr 10-14 Mo max 1.5 Ni 7-12 Cu max 2.6 Ti 0.6-2.0 (Nb+Ta) max 0.7 balance Fe and normally occurring impurities. An impact beam comprising precipitation hardenable stainless steel, according to the invention, provides improved impact absorbing properties per unit of weight, and can be formed by conventional hot forming techniques.

Abstract: A thin walled tube is disclosed consisting essentially of a precipitation hardenable stainless steel and having a ratio, defined as outer tube circumference C divided by ? times the square of the tube wall thickness w, of 90-350. The thin walled tube is highly suitable for use in sport appliance or furniture where weight and mechanical properties are of high importance.