Sollac

Usinor

Arcelormittal

Xavier Bano

Christian Giraud

Jacques Devroc

Sujay Sarkar

Stephane Fiori

Maurice Malta

Guillaume Marcireau

Blandine Oehler

A hot rolled steel sheet having a composition including the elements, expressed in percentage by weight 0.11%≤Carbon≤0.16%, 1%≤Manganese≤2%, 0.1%≤Silicon≤0.7%, 0 02%≤Aluminum≤0.1%, 0.15%≤Molybdenum≤0.4%, 0.15%≤Vanadium≤0.4%, 0.002%≤Phosphorus≤0.02%, 0%≤Sulfur≤0.005%, 0%≤Nitrogen≤0.01%, and can contain one or more of the following optional elements 0%≤Chromium≤0.5%, 0%≤Niobium≤0.05%, 0.0001%≤Calcium≤0.005%, 0%≤Boron≤0.001%, 0%≤Magnesium≤0.0010%, 0%≤Titanium≤0.01%, with 0.3%≤Mo+V+Nb≤0.6%, the remainder composition being composed of iron and unavoidable impurities, the microstructure of steel sheet including in area fraction, 70% to 90% Bainite, 10% to 25% Ferrite wherein the cumulated amounts of Bainite and Ferrite is at least 90% and a cumulated amount of Residual Austenite and Martensite is between 0% and 10%.

Hot rolled steel sheet and a method of manufacturing thereof

The invention relates to a high-resistant, low-density hot laminated sheet steel comprising the following elements expressed in weight per cent: 0.04%:9 carbon&#x2266;0.5%; 0.05%&#x2266;manganese&#x2266;3%, being able to contain hardening elements: 0.01%&#x2266;niobium&#x2266;0.1 0.01%&#x2266;titanium&#x2266;0.2% 0.01&#x2266;vanadium&#x2266;0.2%, either individually or combined, and/or elements acting on the transformation temperatures, 0.0005%&#x2266;boron&#x2266;0.005%; 0.05%&#x2266;nickel&#x2266;2%; 0.05%&#x2266;chrome&#x2266;2%; 0.05%&#x2266;molybdenum&#x2266;2%, either individually or combined, the remainder being iron and elements which are inherent to production, characterized in that it comprises: 2%&#x2266;silicon&#x2266;10%; 1%&#x2266;aluminium&#x2266;10%. The invention also relates to the production thereof.

Very-high-strength and low-density, hot-rolled steel sheet and manufacturing process

Hot-rolled steel with very high elasticity limit and mechanical resistance usable in particular for auto parts production

A hot-rolled sheet steel for deep drawing, characterized in that it has the following composition:

Hot-rolled sheet steel for deep drawing

Process for producing a strip of hot rolled steel sheet having a very high yield point of use in particular for the forming of parts and having a brittle/ductile transition at a temperature below -50.degree. C., characterized in that the steel having the following composition by weight;

Process for producing a strip of hot rolled steel sheet having a very

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Istres, France

Xavier Bano