The present invention relates to a steel alloy with high energy absorption capacity and good formability, comprising beside inevitable impurities due to smelting and iron the following components in weight percent:C 0.05-0.6%Sum of Cr+2*Ti+3*(Mo+V+Nb)+4*W=2-7%,wherein the structure of the steel alloy comprises beside martensite portions of 10-40 Vol.-% retained austenite, wherein the energy absorption capacity expressed by the product of tensile strength (Rm) and uniform strain (Ag) is higher than 12,000 MPa % and the steel alloy has a minimal tensile strength of 1000 MPa.In addition, the invention relates to a steel tube product with high energy absorption capacity and good formability, which is characterized in that it at least partially consists of such a steel alloy.
Steel alloy with high energy absorption capacity and tubular steel product
2022-07-12
Patent
Electronic Resource
English
STEEL ALLOY WITH HIGH ENERGY ABSORPTION CAPACITY AND TUBULAR STEEL PRODUCT
European Patent Office | 2020
|Energy Absorption Capacity of Graphite-Epoxy Tubular Specimens
British Library Conference Proceedings | 2000
|