STEEL, AND PROCESSING METHOD FOR THE PRODUCTION OF HIGHER-STRENGTH FRACTURE-SPLITTABLE MACHINE COMPONENTS

摘要

The invention relates to a steel and a processing method for high-strength fracture-splittable machine components that are composed of at least two fracture-splittable parts. The steel and method are characterized in that the chemical composition of the steel (expressed in percent by weight) is as follows: 0.40%≰C≰0.60%; 0.20%≰Si≰1.00%; 0.50%≰Mn≰1.50%; 0%≰Cr≰1.00%; 0%≰Ni≰0.50%; 0%≰Mo≰0.20%; 0%≰Nb≰0.050%; 0%≰V≰0.30%; 0%≰Al≰0.05%; 0.005%≰N≰0.020%, the rest being composed of iron and smelting-related impurities and residual matter.