Salzgitter Flachstahl Gmbh

Thorsten Reier

Manuel Otto

Friedrich Luther

Joachim Schöttler

Michael Braun

Stefan Mütze

Uwe Eggers

Cord Schäffner

A component of an air-hardenable steel composed of (contents in mass %): C&#x3c;0.20; Al&#x3c;0.08; Si&#x3c;1.00; Mn 1.20 to &#x3c;2.50; P&#x3c;0.020; S&#x3c;0.015; N&#x3c;0.0150; Cr 0.30 to &#x3c;1.5; Mo 0.10 to &#x3c;0.80; Ti 0.010 to &#x3c;0.050; V 0.03 to &#x3c;0.20; B 0.0015 to &#x3c;0.0060, with the remainder being iron including the usual elements present in steel, is produced by heating a hot- or cold-rolled steel sheet or steel tube section to a temperature of &#x3b8;=800 to 1050&#xb0; C. and then forming the sheet or tube into a component in a forming tool. After removal from the tool, the component is cooled down in air while the component still has a temperature above &#x3b8;=200&#xb0; C. and below 800&#xb0; C. The component achieves the required mechanical properties during air-cooling.

Method for producing a component from an air-hardenable steel and component produced therewith

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Lahstedt, Germany

Thorsten Reier