Light constructional steel and the use thereof

US6387192B1 · kind B1 · utility

Inventors

• Georg Frommeyer · Erkrath, DE
• Oliver Grässel · Krefeld, DE

Key dates

• Filing date: Dec 29, 1999
• Grant date: May 14, 2002
• Expiry date: Dec 29, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C38/06
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to an easily cold-workable, in particular easily deep-drawable ultra high strength austenitic lightweight construction steel with an ultimate tensile strength of up to 1100 MPa and with TRIP and TWIP characteristics, as well as its use for motor vehicle body sheetmetal components, structural components used for stiffening, as well as cryogenic containers and pipelines.