EP 4317504 A1 20240207 - HOT-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Title (en)
HOT-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Title (de)
WARMGEWALZTES STAHLBLECH UND VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
FEUILLE D'ACIER LAMINÉE À CHAUD ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- JP 2021056688 A 20210330
- JP 2022013740 W 20220323
Abstract (en)
There is provided a hot-rolled steel sheet having excellent stretch flangeability.A hot-rolled steel sheet has a chemical composition containing, by mass%, C: 0.10% or less, Si: 2.0% or less, Mn: 2.0% or less, P: 0.100% or less, S: 0.02% or less, Al: 1.5% or less, and O: 0.0025% or less, the balance being Fe and incidental impurities, in which a main phase is ferrite, and a maximum orientation density of grains is 2.1 or less.
IPC 8 full level
C22C 38/00 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/06 (2006.01); C22C 38/60 (2006.01)
CPC (source: EP KR US)
B21B 1/22 (2013.01 - US); C21D 1/02 (2013.01 - EP); C21D 1/18 (2013.01 - US); C21D 6/001 (2013.01 - US); C21D 6/002 (2013.01 - US); C21D 6/005 (2013.01 - US); C21D 6/008 (2013.01 - US); C21D 8/0205 (2013.01 - EP US); C21D 8/0226 (2013.01 - EP KR US); C21D 8/0247 (2013.01 - US); C21D 8/0263 (2013.01 - EP); C21D 9/46 (2013.01 - EP KR US); C22C 38/002 (2013.01 - EP US); C22C 38/004 (2013.01 - US); C22C 38/005 (2013.01 - EP US); C22C 38/008 (2013.01 - EP KR US); C22C 38/02 (2013.01 - EP KR US); C22C 38/04 (2013.01 - EP KR US); C22C 38/06 (2013.01 - EP KR US); C22C 38/08 (2013.01 - EP US); C22C 38/12 (2013.01 - EP US); C22C 38/14 (2013.01 - EP US); C22C 38/16 (2013.01 - EP US); C22C 38/18 (2013.01 - US); C22C 38/32 (2013.01 - EP); C22C 38/34 (2013.01 - EP); C22C 38/38 (2013.01 - EP); C22C 38/42 (2013.01 - KR); C22C 38/44 (2013.01 - KR); C22C 38/46 (2013.01 - KR); C22C 38/50 (2013.01 - KR); C22C 38/58 (2013.01 - KR); C22C 38/60 (2013.01 - EP US); B21B 2001/225 (2013.01 - US); C21D 2201/05 (2013.01 - EP); C21D 2211/005 (2013.01 - EP KR US); C21D 2211/009 (2013.01 - US)
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 4317504 A1 20240207; CN 117062931 A 20231114; JP 7435796 B2 20240221; JP WO2022210220 A1 20221006; KR 20230148840 A 20231025; MX 2023011386 A 20231009; US 2024167114 A1 20240523; WO 2022210220 A1 20221006
DOCDB simple family (application)
EP 22780434 A 20220323; CN 202280024314 A 20220323; JP 2022013740 W 20220323; JP 2022543072 A 20220323; KR 20237032474 A 20220323; MX 2023011386 A 20220323; US 202218283055 A 20220323