Jfe Steel Corporation

Thyssenkrupp Steel Ag

Thyssen Stahl Ag

Thyssenkrupp Stahl Ag

Basf Se Corporation

Thyssenkrupp Steel Europe Ag

Julius Montz Gmbh

Rasselstein Gmbh

Rolf Bode

Akio Kobayashi

Hiroshi Matsuda

Gerd Kaibel

Thomas Heller

Brigitte Hammer

Günter Stich

Ilse Heckelmann

Takeshi Yokota

Yasushi Tanaka

Yasunobu Nagataki

Kohei Hasegawa

Kazuhiro Seto

Yoshihiro Hosoya

Shusaku Takagi

Helmut Jansen

Kenji Kawamura

Reiner Sauer

Taro Kizu

Christian Miller

Jian Bian

Brigitte Bode, Legal Representative

Ullrich Heidtmann

Guenter Stich

A high strength steel, including about 0.05 to about 0.25% of C, less than about 0.5% of Si, about 0.5 to about 3.0% of Mn, not more than about 0.06% of P, not more than about 0.01% of S, about 0.50 to about 3.0% of Sol. Al, not more than about 0.02% of N, about 0.1 to about 0.8% of Mo, about 0.02 to about 0.40% of Ti, and the balance of iron and unavoidable impurities, wherein the steel has a structure formed of at least three phases including a bainite phase, and a retained austenite phase in addition to a ferrite phase having a composite carbide containing Ti and Mo dispersed and precipitated therein, wherein the total volume of the ferrite phase and the bainite phase is not smaller than 80%, the volume of the bainite phase is about 5% to about 60%, and the volume of the retained austenite phase is about 3 to about 20%.

High strength steel excellent in uniform elongation properties and method of manufacturing the same

A high strength steel sheet and a method for manufacturing the same has superior phosphatability properties and hot-dip galvannealed properties besides a tensile strength of 950 MPa or more and a high ductility, and also having a small variation in mechanical properties with the change in annealing conditions.

High strength steel sheet having superior ductility

The invention relates to processes for the production of a buckling-resistant stove-finished structural member from cold rolled and dressed strip (cold strip) non-ageing steel with high bake-hardening potential, more particularly of more than 70 N/mm . The characterising feature of the invention is that the cold strip is converted by dressing into a yield point stretch-free state (R &minus;R <2 N/mm ), then stored at a temperature below room temperature and further processed into the form of a structural member, whereafter the strip is finally stove finished.

Process for the production of stove-finished structural components from ageing-sensitive steel

Process for producing an easily shaped cold-rolled sheet or strip

Growing community of inventors

Wesel, Germany

Rolf Bode