Thyssen Krupp Ag

Thyssenkrupp Steel Europe Ag

Outokumpu Nirosta Gmbh

Nina Kolbe

Bernd Schuhmacher

Hans-Joachim Krautschick

Richard Georg Thiessen

Dirk Wiemer

Clemens Latuske

Patrick Kuhn

Frank Wörster

Roman Glass

Stefan Peter Puls

Utz Karsten

Jörg Kazmierski

Klaus Manfred Lange

Janine Schauer-Paβ

The invention relates to the use of a Q&P steel for production of a formed component (2) for high-wear applications, wherein the Q&P steel has a hardness of at least 230 HB, especially at least 300 HB, preferably at least 370 HB, and a bending angle &#x3b1; of at least 60&#xb0;, especially at least 75&#xb0;, preferably at least 85&#xb0;, determined to VDA238-100, and/or a bending ratio of r/t&#x3c;2.5, especially r/t&#x3c;2.0, preferably r/t&#x3c;1.5, where t corresponds to the material thickness of the steel and r to the (inner) bending radius of the steel.

Use of a Q and P steel for producing a shaped component for high-wear applications

A method for producing a flat steel product with high reflectivity, in which at least one surface has an arithmetic mean roughness Ra of less than 0.03 &#x3bc;m includes providing a flat steel product, at least one surface of which has an arithmetic mean roughness Ra of less than 2.5 &#x3bc;m. The flat steel product is cold rolled in a plurality of rolling passes. Also a flat steel product with high reflectivity in the finished re-rolled state on at least one of its surface has a low arithmetic mean roughness, a high gloss, and a high directed reflection. A solar concentrator is produced from such a flat steel product.

Flat steel product with high reflectivity, flat steel product and mirror element for solar concentrators

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Bochum, Germany

Nina Kolbe