EP 3719149 A1 20201007 - HIGH-HARDNESS STEEL PRODUCT AND METHOD OF MANUFACTURING THE SAME
Title (en)
HIGH-HARDNESS STEEL PRODUCT AND METHOD OF MANUFACTURING THE SAME
Title (de)
HOCHHARTES STAHLPRODUKT UND VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
PRODUIT D'ACIER À DURETÉ ÉLEVÉE ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
EP 19167552 A 20190405
Abstract (en)
A hot-rolled steel strip product comprising a composition consisting of, in terms of weight percentages, 0.14 % to 0.35 % C, 0 % to 0.5 % Si, 0.05 % to 0.40 % Mn, 0.1 % or less Al, 0.1 % to 0.4 % Cu, 0.2 % to 0.9 % Ni, 0.2 % to 0.9 % Cr, 0.2 % or less Mo, 0.005 % or less Nb, 0.035 % or less Ti, 0.05 % or less V, 0.0005 % to 0.0050 % B, 0.025 % or less P, 0.008 % or less S, 0.01 % or less N, 0.01 % or less Ca, and the remainder being Fe and inevitable impurities, wherein the steel product has a Brinell hardness in the range of 420 to 580 HBW.
IPC 8 full level
C21D 8/02 (2006.01); C22C 38/04 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/54 (2006.01)
CPC (source: EP KR US)
C21D 1/00 (2013.01 - EP); C21D 6/004 (2013.01 - US); C21D 6/005 (2013.01 - US); C21D 6/008 (2013.01 - US); C21D 8/0205 (2013.01 - US); C21D 8/0226 (2013.01 - EP KR US); C21D 8/0263 (2013.01 - EP US); C21D 8/0273 (2013.01 - KR); C21D 9/52 (2013.01 - US); C22C 38/001 (2013.01 - KR US); C22C 38/002 (2013.01 - US); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/06 (2013.01 - US); C22C 38/08 (2013.01 - EP); C22C 38/105 (2013.01 - EP); C22C 38/12 (2013.01 - EP); C22C 38/14 (2013.01 - EP); C22C 38/16 (2013.01 - EP); C22C 38/20 (2013.01 - US); C22C 38/22 (2013.01 - US); C22C 38/24 (2013.01 - US); C22C 38/26 (2013.01 - US); C22C 38/28 (2013.01 - US); C22C 38/42 (2013.01 - EP KR US); C22C 38/44 (2013.01 - EP KR US); C22C 38/46 (2013.01 - KR US); C22C 38/48 (2013.01 - KR US); C22C 38/50 (2013.01 - KR US); C22C 38/54 (2013.01 - EP KR US); C21D 2211/008 (2013.01 - EP KR)
Citation (applicant)
- CN 102199737 A 20110928 - BAOSHAN IRON & STEEL
- CN 102392186 A 20120328 - NANJING IRON & STEEL CO LTD, et al
- CN 103820717 A 20140528 - LAIWU IRON&STEEL GROUP CO LTD
- EP 2695960 A1 20140212 - JFE STEEL CORP [JP]
Citation (search report)
- [X] JP 2009030093 A 20090212 - JFE STEEL KK
- [I] JP 4874434 B1 20120215
- [I] EP 2578705 A1 20130410 - NIPPON STEEL & SUMITOMO METAL CORP [JP]
- [A] WO 2015007723 A1 20150122 - RAUTARUUKKI OYJ [FI]
- [A] EP 2778239 A1 20140917 - TENARIS COILED TUBES LLC [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
DOCDB simple family (publication)
EP 3719148 A1 20201007; EP 3719148 B1 20230125; BR 112021019860 A2 20211207; BR 112021019865 A2 20211207; CA 3135141 A1 20201008; CA 3135144 A1 20201008; CN 113785078 A 20211210; CN 113785078 B 20231027; CN 113785079 A 20211210; CN 113785079 B 20240405; EP 3719149 A1 20201007; EP 3719149 B1 20230322; JP 2022528420 A 20220610; KR 20210149123 A 20211208; PL 3719148 T3 20230508; SI 3719148 T1 20230630; US 2022177996 A1 20220609; US 2022177997 A1 20220609; WO 2020201437 A1 20201008; WO 2020201438 A1 20201008
DOCDB simple family (application)
EP 19167552 A 20190405; BR 112021019860 A 20200402; BR 112021019865 A 20200402; CA 3135141 A 20200402; CA 3135144 A 20200402; CN 202080026935 A 20200402; CN 202080026939 A 20200402; EP 19185759 A 20190711; EP 2020059423 W 20200402; EP 2020059424 W 20200402; JP 2021559152 A 20200402; KR 20217035749 A 20200402; PL 19167552 T 20190405; SI 201930516 T 20190405; US 202017601227 A 20200402; US 202017601234 A 20200402