429 patents
Page 20 of 22
Utility
Metal sheet having oiled Zn—Al—Mg coatings
14 Dec 20
A metal sheet is provided.
Tiago Machado Amorim, Joelle Richard, Eric Jacqueson, Audrey Lhermeroult, Pascale Feltin, Jean-Michel Lemaire, Luc Diez, Jean-Michel Mataigne
Filed: 2 Dec 18
Utility
Method for producing a steel part and corresponding steel part
9 Dec 20
A method for producing a steel part and corresponding steel part includes casting a steel having a composition comprising: 0.10%≤C≤0.35%, 0.8%≤Si≤2.0%, 1.8%≤Mn≤2.5%, P≤0.1%, 0%≤S≤0.4%, 0%≤Al≤1.0%, N≤0.015%, 0%≤Mo≤0.4%, 0.02%≤Nb≤0.08%, 0.02%≤Ti≤0.05%, 0.001%≤B≤0.005%, 0.5%≤Cr≤1.8%, 0%≤V≤0.5%, 0%≤Ni≤0.5%, to obtain a semi-product, hot rolling the semi-product at a hot rolling starting temperature higher than 1000° C. and cooling the product through air to room temperature to obtain a hot rolled steel part having a microstructure consisting of 70% to 90% of bainite, 5% to 25% of M/A compounds and at most 25% of martensite.
Bernard RESIAK
Filed: 21 May 18
Utility
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9 Dec 20
Michel BORDIGNON, Jonas STAUDTE
Filed: 21 Oct 18
Utility
napjg5flgzlvbk7s5z2nmk4qxp91frls2gpl49zt4kudfyszhrtm5gbdd9du
7 Dec 20
The present invention provides a hot rolled steel sheet with yield stress greater than 680 MPa and less than or equal to 840 MPa a tensile strength between 780 MPa and 950 MPa, elongation at failure greater than 10% and hole-expansion ratio (Ac) greater than or equal to 45%.
Jean Marc Pipard, Astrid Perlade, Bastien Weber, Florence Pechenot, Aurelie Milani
Filed: 9 Jul 15
Utility
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7 Dec 20
A method for the fabrication of a steel product is provided.
Gabriel Fricout, David Glijer
Filed: 29 Sep 16
Utility
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2 Dec 20
A lower carbon steel alloy with specific substitutional alloying additions.
Amar Kumar De
Filed: 17 Aug 20
Utility
hgja3mkyhp9dbdhjqbmvdrbrofy722c9b7ramlottvp3j0cb 4r24v2x
25 Nov 20
Kangying ZHU, Astrid PERLADE, Coralie JUNG, Frederic KEGEL
Filed: 20 Nov 18
Utility
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23 Nov 20
A method of heat transfer between a metallic or non-metallic item and a heat transfer fluid is provided.
David Noriega Perez
Filed: 19 Dec 16
Utility
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23 Nov 20
José Lopez Fresno, José Luis Garcia Cimadevilla, Juan José Fernandez Lopez
Filed: 8 May 17
Utility
rumjjiegw6p76r8o5hd4acmash8asrnxye5dim0 7fkh
23 Nov 20
A method for manufacturing a high-strength steel sheet having a tensile strength of more than 1100 MPa and a yield strength of more than 700 MPa, a uniform elongation UE of at least 8.0% and a total elongation of at least 10%, made of a steel containing in percent by weight: 0.1%≤C≤0.25%, 4.5%≤Mn≤10%, 1%≤Si≤3%, 0.03%≤Al≤2.5%, the remainder being Fe and impurities resulting from the smelting, the composition being such that CMn Index=Cx(1+Mn/3.5)≤0.6, the method comprising the steps of annealing a rolled sheet made of said steel by soaking it at an annealing temperature TA higher than the Ac transformation point of the steel but less than 1000° C., cooling the annealed sheet to a quenching temperature QT between 190° C. and 80° C. at a cooling speed sufficient to obtain a structure just after cooling containing martensite and retained austenite, maintaining the steel sheet at an overaging temperature PT between 350° C. and 500° C. for an overaging time Pt of more than 5 s cooling the sheet down to the ambient temperature.
Wei Xu, Artem Arlazarov
Filed: 2 Jul 15
Utility
rhmcqgi76uiw6s048kgy0y32hnj28d10oa6pvcej5lrbown7ym8
18 Nov 20
A cold-rolled and heat treated steel sheet, has a composition comprising 0.1%≤C≤0.4%, 3.5%≤Mn≤8.0%, 0.1%≤Si≤1.5%, Al≤3%, Mo≤0.5%, Cr≤1%, Nb≤0.1%, Ti≤0.1%, V≤0.2%, B≤0.004%, 0.002%≤N≤0.013%, S≤0.003%, P≤0.015%.
Coralie JUNG, Astrid PERLADE, Kangying ZHU, Frédéric KEGEL
Filed: 17 Dec 18
Utility
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18 Nov 20
Eric SILBERBERG, Bruno SCHMITZ, Sergio PACE, Remy BONNEMANN, Didier MARNEFFE
Filed: 10 Dec 18
Utility
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11 Nov 20
A method for producing a welded blank (1) includes providing two precoated sheets (2), butt welding the precoated sheets (2) using a filler wire.
Cristian ALVAREZ, Thierry LIZON, Maria POIRIER
Filed: 25 Nov 18
Utility
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11 Nov 20
A method for the manufacture of a galvannealed steel sheet including the provision of a specific steel sheet, a recrystallization annealing with specific heating, soaking and cooling sub-steps using an inert gas, a hot-dip galvanizing and an alloying treatment; the galvannealed steel sheet and the use of the galvannealed steel sheet.
David ZAPICO ALVAREZ, Florence BERTRAND, Joris GIROUX
Filed: 18 Oct 18
Utility
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11 Nov 20
A cold rolled and heat treated steel sheet having a composition with the following elements, expressed in percentage by weight 0.10%≤Carbon≤0.5%, 1%≤Manganese≤3.4%, 0.5%≤Silicon≤2.5%, 0.03%≤Aluminum≤1.5%, Sulfur≤0.003%, 0.002%≤Phosphorus≤0.02%, Nitrogen≤0.01% and can contain one or more of the following optional elements 0.05%≤Chromium≤1%, 0.001%≤Molybdenum≤0.5%, 0.001%≤Niobium≤0.1%, 0.001%≤Titanium≤0.1%, 0.01%≤Copper≤2%, 0.01%≤Nickel≤3%, 0.0001%≤Calcium≤0.005%, Vanadium≤0.1%, Boron≤0.003%, Ceriums≤0.1%, Magnesiums≤0.010%, Zirconiums≤0.010% the remainder composition being composed of iron and the unavoidable impurities caused by processing, and a microstructure of the said rolled steel sheet having by area fraction, 10 to 30% Residual Austenite, 5 to 50% Annealed Bainite, 10 to 40% of Bainite, 1% to 20% Quenched Martensite, and less than 30% Tempered Martensite where the combined presence of Bainite and Residual Austenite shall be 30% or more.
Jean-Marc PIPARD, Artem ARLAZAROV
Filed: 4 Nov 18
Utility
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9 Nov 20
A welded steel part with a very high mechanical strength is provided.
Laurent Cretteur, Qingdong Yin, Francis Schmit, Wolfram Ehling
Filed: 28 Jun 17
Utility
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9 Nov 20
A lower carbon steel alloy with specific substitutional alloying additions.
Amar Kumar De
Filed: 4 Feb 15
Utility
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4 Nov 20
Kangying ZHU, Astrid PERLADE, Coralie JUNG, Frederic KEGEL
Filed: 20 Nov 18
Utility
6dzh1nqah1pqhgmwfl0wxuavqekr9iid5haua8zqf4mjo68vtweo7nl2
4 Nov 20
A method is for producing a high strength coated steel sheet having a yield stress YS>800 MPa, a tensile strength TS>1180 MPa, and improved formability and ductility.
Rashmi Ranjan Mohanty, Hyun Jo Jun, Dongwei Fan
Filed: 15 Jul 20
Utility
jyj61e50zorbulmi3hf7dduoih9ybhn1zam4
28 Oct 20
The present invention relates to a method for the manufacture of a hot-dip coated steel sheet coated with a zinc or an aluminum based coating including the provision of a specific steel sheet, a recrystallization annealing with specific heating, soaking and cooling sub-steps using an inert gas and a hot-dip coating; the hot dip coated steel sheet and the use of the said hot-dip coated steel sheet.
David ZAPICO ALVAREZ, Florence BERTRAND, Joris GIROUX
Filed: 18 Oct 18