Austenitic stainless steels are characterized in their annealed condition by their high formability combined with very good corrosion resistance. The corrosion resistance can be further increased by adding chromium or molybdenum content. Depending on the nickel content, either higher formability or an a-magnetic material can be achieved. In the work-hardened state, they are used as springs, filters, tubes, needles, stencils, or cutting elements in various areas of life in the automotive, electrical, household, and consumer goods sectors, or in mechanical engineering and the chemical industry. We sometimes find them as implants or connecting elements in our body after surgery.