EP 4174207 A1 20230503 - FLAT STEEL PRODUCT HAVING IMPROVED PROCESSING PROPERTIES
Title (en)
FLAT STEEL PRODUCT HAVING IMPROVED PROCESSING PROPERTIES
Title (de)
STAHLFLACHPRODUKT MIT VERBESSERTEN VERARBEITUNGSEIGENSCHAFTEN
Title (fr)
PRODUIT PLAT EN ACIER AYANT DES PROPRIÉTÉS DE TRAITEMENT AMÉLIORÉES
Publication
Application
Priority
EP 21205912 A 20211102
Abstract (en)
[origin: US2023136262A1] A flat steel product for production of a sheet metal component by hot forming includes a steel substrate consisting of a steel including 0.1-3% by weight of Mn and optionally up to 0.01% by weight of B, an aluminium-based coating disposed on at least one side of the steel substrate. A coating here has an applied layer weight of 15-30 g/m2. In addition, the coating has an Al base layer consisting of 1.0-15% by weight of Si, optionally 2-4% by weight of Fe, 0.1-5.0% by weight of alkali metals or alkaline earth metals, and optional further constituents, the contents of which are limited to a total of not more than 2.0% by weight, and aluminium as the balance.
Abstract (de)
Die Erfindung betrifft ein Stahlflachprodukt zur Herstellung eines Blechbauteils durch Warmumformen, aufweisenda) ein Stahlsubstrat, das aus einem Stahl, der 0,1-3 Gew.-% Mn und optional bis zu 0,01 Gew.-% B aufweist, besteht undb) einen auf mindestens einer Seite des Stahlsubstrats angeordneten Überzugs auf Aluminium-Basis.Hierbei weist der Überzug ein Auflagengewicht von 15-30 g/m^2 auf. Weiterhin weist der Überzug eine Al-Basisschicht auf, die aus 1,0 ― 15 Gew.-% Si, optional 2-4 Gew.-% Fe, 0,1 - 5,0 Gew.-% Alkali- oder Erdalkalimetalle, und optionalen weiteren Bestandteilen, deren Gehalte in Summe auf höchstens 2,0 Gew.-% beschränkt sind, und als Rest Aluminium besteht.
IPC 8 full level
C23C 2/12 (2006.01); B21D 22/00 (2006.01); C21D 1/18 (2006.01); C21D 1/673 (2006.01); C21D 1/76 (2006.01); C21D 7/13 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 21/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/14 (2006.01); C23C 2/02 (2006.01); C23C 2/26 (2006.01); C23C 2/28 (2006.01); C23C 2/40 (2006.01); C23C 30/00 (2006.01)
CPC (source: EP US)
B21D 22/022 (2013.01 - US); C21D 1/18 (2013.01 - EP); C21D 1/673 (2013.01 - EP); C21D 1/76 (2013.01 - EP); C21D 7/13 (2013.01 - EP); C21D 8/0226 (2013.01 - EP US); C21D 8/0236 (2013.01 - EP US); C21D 8/0242 (2013.01 - EP); C21D 8/0273 (2013.01 - EP US); C21D 8/0278 (2013.01 - EP); C21D 9/46 (2013.01 - EP US); C22C 21/02 (2013.01 - EP US); C22C 38/002 (2013.01 - EP); C22C 38/02 (2013.01 - EP); C22C 38/04 (2013.01 - EP US); C22C 38/06 (2013.01 - EP); C22C 38/14 (2013.01 - EP); C23C 2/022 (2022.08 - EP); C23C 2/12 (2013.01 - EP US); C23C 2/28 (2013.01 - EP); C23C 2/40 (2013.01 - EP US); C23C 30/00 (2013.01 - EP); C21D 2211/008 (2013.01 - EP US)
Citation (applicant)
- EP 2848715 B1 20181031 - THYSSENKRUPP STEEL EUROPE AG [DE]
- EP 2993248 B1 20200624 - THYSSENKRUPP STEEL EUROPE AG [DE], et al
- VON HOUGARDY, HP: "Werkstoffkunde Stahl", vol. 1, 1984, VERLAG STAHLEISEN GMBH, pages: 229
Citation (search report)
- [XAI] WO 2019076720 A1 20190425 - THYSSENKRUPP STEEL EUROPE AG [DE], et al
- [IA] WO 2019016041 A1 20190124 - THYSSENKRUPP STEEL EUROPE AG [DE], et al
Citation (third parties)
Third party : Anonymous
- EP 2993248 B1 20200624 - THYSSENKRUPP STEEL EUROPE AG [DE], et al
- WO 2022048990 A1 20220310 - THYSSENKRUPP STEEL EUROPE AG [DE]
- WO 2023020931 A1 20230223 - THYSSENKRUPP STEEL EUROPE AG [DE]
- EP 3088558 B1 20190220 - POSCO [KR]
- WO 2008053273 A1 20080508 - ARCELOR FRANCE [FR], et al
- "Standard specification for Steel Sheet, Aluminum-coated, by the hot-Dip process", ASTM STANDARD - ASTM A463/A463M-15(2020)E1, vol. ASTM A463/A463M-15(2020)e1, 7 November 2022 (2022-11-07), US, pages 1 - 6, XP009556399
- WINDMANN M.; RÖTTGER A.; THEISEN W. : "Formation of intermetallic phases in Al-coated hot-stamped 22MnB5 sheets in terms of coating thickness and Si content", SURFACE AND COATINGS TECHNOLOGY, vol. 246, 1 January 1900 (1900-01-01), NL , pages 17 - 25, XP028839531, ISSN: 0257-8972, DOI: 10.1016/j.surfcoat.2014.02.056
- H. KARBASIAN, A.E. TEKKAYA: "A review on hot stamping", JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, vol. 210, no. 15, 1 November 2010 (2010-11-01), pages 2103 - 2118, XP055141086, ISSN: 09240136, DOI: 10.1016/j.jmatprotec.2010.07.019
- FAN D W; DE COOMAN B C: "State-of-the-knowledge on coating systems for hot stamped parts", STEEL RESEARCH INTERNATIONAL, vol. 83, no. 5, 1 May 2012 (2012-05-01), DE , pages 412 - 433, XP009176185, ISSN: 1611-3683, DOI: 10.1002/srin.201100292
- KIM SUN KYU: "Hot-Dip Aluminizing with Silicon and Magnesium Addition II. Effect on Corrosion Resistance", KOREAN J. MET. MATER., vol. 51, no. 11, 1 November 2013 (2013-11-01), pages 801 - 805, XP093193946
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4174207 A1 20230503; US 11891676 B2 20240206; US 12098441 B2 20240924; US 2023136262 A1 20230504; US 2024117458 A1 20240411
DOCDB simple family (application)
EP 21205912 A 20211102; US 202217978246 A 20221101; US 202318543606 A 20231218