Voestalpine Stahl Gmbh

Klemens Mraczek

Enno Arenholz

Ludovic Samek

Mario Hartl

Andreas Muhr

Reinhold Schneider

Bernhard Haneder

A method for producing a cold-rolled flat steel product coated with a metallic anticorrosion layer includes producing a steel melt containing in addition to iron and unavoidable impurities (in % by wt.): C: 0.01-0.35%, Mn: 1-4%, Si: 0.5-2.5%, Nb: to 0.1%, Ti: 0.015-0.1%, P: up to 0.1%, Al: to 0.15%, S: up to 0.01%, N: up to 0.1%, and optionally one or more elements from a group of rare earth metals. The method further includes casting the steel melt to give a preliminary product, hot-rolling the preliminary product to give a hot strip, coiling the hot strip to give a coil, annealing the hot strip, cold-rolling the annealed hot strip to give a cold-rolled flat steel product, finally annealing the cold-rolled flat steel product, and applying a metal anticorrosion layer based on zinc by electrolytic galvanization or hot dip galvanization of the cold-rolled and finally annealed flat steel product.

Cold-rolled flat steel product having metal anti-corrosion layer and method for producing same

A hot-rolled austenitic manganese steel strip having a chemical composition in percent by weight of 0.4%&#x2266;C&#x2266;1.2%, 12.0%&#x2266;Mn&#x2266;25.0%, P&#x2267;0.01% and Al&#x2266;0.05% has a product of elongation at break in % and tensile strength in MPa of above 65,000 MPa %, in particular above 70,000 MPa %. A cold-rolled austenitic manganese steel strip having the same chemical composition achieves a product of elongation at break in % and tensile strength in MPa of above 75,000 MPa %, in particular above 80,000 MPa %.

Manganese steel strip having an increased phosphorous content and process for producing the same

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Leonding, Austria

Klemens Mraczek