CUTLERY AND/OR SERVING CUTLERY MADE OF FERRITIC STAINLESS STEEL WITH A MARTENSITIC CASE

摘要

The invention relates to cutlery and/or serving cutlery made of a steel material which is formed with a ferritic core with a substantially martensitic case. The case surface hardness of the cutlery and/or serving cutlery of the invention, determined according to the Vickers hardness test according to Vickers HV 3, is thereby 30% to 300% greater than the lowest degree of hardness of the core, likewise measured according to Vickers HV 3. The case also has a higher elastic modulus than the core. The surface treatment occurs preferably by means of nitridization and heat treatment.