Patent · US Active

Method for producing a flat steel product made of a manganese-containing steel, and such a flat steel product

US11261503B2 · kind B2 · utility

0Cited by

2References

13Claims

0Family size

Assignee

Salzgitter Flachstahl GmbH · DE

Inventors

PETER PALZER · Langelsheim, DE
Thomas Evertz · Peine, DE
Manuel Otto · Lehre, DE
KAI KÖHLER · Nordstemmen, DE

Key dates

Filing date	Sep 13, 2017
Grant date	Mar 1, 2022
Priority date	—
Expiry date	Feb 24, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21D2211/008
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention relates to a method for producing a flat steel product made of a medium manganese steel having a TRIP/TWIP effect. The aim of the invention is to achieve an improvement in the yield strength when a sufficient residual deformability of the produced flat steel product is obtained. This aim is achieved by the following steps: cold rolling a hot or cold strip, annealing the cold-rolled hot or cold strip at 500 to 840° C. for 1 minute to 24 hours, temper rolling or finishing the annealed hot or cold strip to form a flat steel product having a degree of deformability between 0.3% and 60%. The invention further relates to a flat steel product produced according to said method and to a use thereof.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.