EP 4073280 A1 20221019 - HEAT TREATED COLD ROLLED STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF
Title (en)
HEAT TREATED COLD ROLLED STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF
Title (de)
HITZEBEHANDELTES KALTGEWALZTES STAHLBLECH UND VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
TÔLE D'ACIER LAMINÉE À FROID ET TRAITÉE THERMIQUEMENT ET PROCÉDÉ DE FABRICATION DE CELLE-CI
Publication
Application
Priority
- IB 2019060741 W 20191213
- IB 2020061765 W 20201210
Abstract (en)
[origin: WO2021116976A1] A heat treated and cold rolled steel sheet having a composition comprising of the following elements 0.09% ≤ Carbon ≤ 0.15 %,1.8% ≤ Manganese ≤ 2.5%, 0.2 % ≤ Silicon ≤ 0.7 %, 0.01% ≤ Aluminum ≤ 0.1%, 0 % ≤ Phosphorus ≤ 0.09 %, 0 % ≤ Sulfur ≤ 0.09 %, 0 % ≤ Nitrogen ≤ 0.09%, 0 % ≤ Niobium ≤ 0.1%, 0 % ≤ Titanium ≤ 0.1%, 0 % ≤ Chromium ≤ 1%, 0 % ≤ Molybdenum ≤ 1%, 0 % ≤ Vanadium ≤ 0.1%, 0 % ≤ Calcium ≤ 0.005%, 0 % ≤ Boron ≤ 0.01%, 0 % ≤ Cerium ≤ 0.1%, 0 % ≤ Magnesium ≦ 0.05%, 0 % ≤ Zirconium ≦ 0.05% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet comprising in area fraction, 65 to 85% Tempered Martensite, 0% to 5% Residual Austenite and a cumulative presence of Ferrite and Bainite between 15 and 35%.
IPC 8 full level
C21D 8/00 (2006.01); C21D 8/02 (2006.01); C21D 8/04 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01)
CPC (source: EP KR US)
C21D 8/00 (2013.01 - EP); C21D 8/02 (2013.01 - EP); C21D 8/0205 (2013.01 - US); C21D 8/0226 (2013.01 - EP KR US); C21D 8/0236 (2013.01 - EP KR US); C21D 8/0263 (2013.01 - EP US); C21D 8/0273 (2013.01 - EP KR US); C21D 8/04 (2013.01 - EP); C21D 8/0426 (2013.01 - EP); C21D 8/0436 (2013.01 - EP); C21D 8/0463 (2013.01 - EP); C21D 8/0473 (2013.01 - EP); C21D 9/46 (2013.01 - KR US); C22C 38/00 (2013.01 - EP); C22C 38/001 (2013.01 - 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 38/38 (2013.01 - KR); C22C 38/60 (2013.01 - KR US); C21D 2211/001 (2013.01 - KR US); C21D 2211/002 (2013.01 - EP KR US); C21D 2211/005 (2013.01 - EP KR US); C21D 2211/008 (2013.01 - EP KR US); C22C 38/18 (2013.01 - EP); C22C 38/22 (2013.01 - EP); C22C 38/24 (2013.01 - EP); C22C 38/26 (2013.01 - EP)
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
DOCDB simple family (publication)
WO 2021116976 A1 20210617; BR 112022010401 A2 20220823; CA 3163313 A1 20210617; CA 3163313 C 20240423; CA 3163376 A1 20210617; CA 3163376 C 20240227; CN 114761583 A 20220715; CN 114761583 B 20240405; CN 114761584 A 20220715; CN 114761584 B 20240924; EP 4073279 A1 20221019; EP 4073280 A1 20221019; JP 2023505693 A 20230210; JP 2023506477 A 20230216; JP 2024138480 A 20241008; KR 20220095239 A 20220706; KR 20220095240 A 20220706; MX 2022007053 A 20220711; MX 2022007054 A 20220711; US 2023031338 A1 20230202; US 2023036084 A1 20230202; WO 2021116740 A1 20210617; ZA 202205608 B 20230125; ZA 202205649 B 20230125
DOCDB simple family (application)
IB 2020061765 W 20201210; BR 112022010401 A 20191213; CA 3163313 A 20201210; CA 3163376 A 20191213; CN 201980102822 A 20191213; CN 202080084937 A 20201210; EP 19832441 A 20191213; EP 20823957 A 20201210; IB 2019060741 W 20191213; JP 2022535558 A 20191213; JP 2022535560 A 20201210; JP 2024112270 A 20240712; KR 20227019564 A 20191213; KR 20227019565 A 20201210; MX 2022007053 A 20191213; MX 2022007054 A 20201210; US 201917783442 A 20191213; US 202017783409 A 20201210; ZA 202205608 A 20220520; ZA 202205649 A 20220523