Salzgitter Flachstahl Gmbh

Daniela John

Thomas Evertz

Manuel Otto

Zacharias Georgeou

Bianca Springub

Rune Schmidt-Jürgensen

A method for producing a workpiece having properties which are adjustable across a wall thickness or strip thickness of the workpiece, includes the steps of subjecting the workpiece to a decarburizing annealing treatment under an oxidizing atmosphere and to an accelerated cooling and/or a cold forming for generating a property gradient of the workpiece, wherein the workpiece is made of an austenitic lightweight steel which has an alloy composition which includes by weight percent 0.2% to 1% carbon, 0.05% to&#x3c;15% aluminum, 0.05% to 6.0% silicon, 9% to&#x3c;30% manganese, and at least one element selected from the group consisting of chromium, copper, boron, titanium, zirconium, vanadium and niobium, wherein chromium=4.0%; titanium+zirconium=0.7%; niobium+vanadium=0.5%, boron=1%, the remainder iron including common steel companion elements.

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Hannover, Germany

Daniela John