EP 3483294 A4 20191127 - ROLLED H-BEAM STEEL AND PRODUCTION METHOD THEREFOR
Title (en)
ROLLED H-BEAM STEEL AND PRODUCTION METHOD THEREFOR
Title (de)
WALZSTAHL FÜR H-TRÄGER UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
ACIER LAMINÉ POUR POUTRE EN H ET PROCÉDÉ DE PRODUCTION ASSOCIÉ
Publication
Application
Priority
- JP 2016166535 A 20160829
- JP 2017030951 W 20170829
Abstract (en)
[origin: EP3483294A1] Rolled H-shaped steel is characterized in that a top 5% average value of Mn concentrations in a most embrittled portion in a flange is 1.6 times or less an Mn concentration at a position of 1/6 in a flange width direction from an end face in the flange width direction and 1/4 in a flange thickness direction from a face of a flange positioned on a side opposite to that of a web, and a top 5% average value of Mn concentrations in a central segregation portion dispersed in a region 15 mm or more apart from a center of the flange width toward one end face or both end faces in the flange width direction and within 2 mm from a flange surface layer in the thickness direction is not less than 1.1 times nor more than 1.6 times the Mn concentration at the position of 1/6 in the flange width direction from the end face in the flange width direction and 1/4 in the flange thickness direction from the face of the flange positioned on the side opposite to that of the web.
IPC 8 full level
C22C 38/00 (2006.01); B21B 1/08 (2006.01); B21B 1/088 (2006.01); B21B 13/00 (2006.01); B21B 27/02 (2006.01); C21D 6/00 (2006.01); C21D 7/13 (2006.01); C21D 8/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/58 (2006.01); C22C 38/60 (2006.01)
CPC (source: EP KR US)
B21B 1/08 (2013.01 - US); B21B 1/088 (2013.01 - KR US); C21D 7/13 (2013.01 - EP); C21D 8/00 (2013.01 - KR US); C22C 38/00 (2013.01 - US); C22C 38/001 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/005 (2013.01 - EP US); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/06 (2013.01 - EP US); C22C 38/42 (2013.01 - KR); C22C 38/44 (2013.01 - EP KR US); C22C 38/46 (2013.01 - EP KR US); C22C 38/48 (2013.01 - EP KR US); C22C 38/50 (2013.01 - EP KR US); C22C 38/58 (2013.01 - EP US); C22C 38/60 (2013.01 - EP KR US); B21B 1/088 (2013.01 - EP); B21B 27/02 (2013.01 - EP); C21D 6/004 (2013.01 - EP US); C21D 6/005 (2013.01 - EP US); C21D 6/008 (2013.01 - EP US); C21D 8/005 (2013.01 - EP)
Citation (search report)
- [Y] JP S6021101 A 19850202 - SUMITOMO METAL IND
- [Y] JP S6182903 A 19860426 - SUMITOMO METAL IND
- [Y] EP 0609556 A2 19940810 - NIPPON STEEL CORP [JP]
- [Y] EP 1769097 A1 20070404 - NIPPON STEEL CORP [JP]
- [Y] EP 2975149 A1 20160120 - NIPPON STEEL & SUMITOMO METAL CORP [JP]
- [A] JP H0199701 A 19890418 - SUMITOMO METAL IND
- See references of WO 2018043491A1
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 3483294 A1 20190515; EP 3483294 A4 20191127; EP 3483294 B1 20220216; CN 109642296 A 20190416; CN 109642296 B 20191105; JP 6421900 B2 20181114; JP WO2018043491 A1 20180927; KR 101984463 B1 20190530; KR 20190029756 A 20190320; PH 12019500064 A1 20191104; TW 201812047 A 20180401; TW I641701 B 20181121; US 2019184436 A1 20190620; WO 2018043491 A1 20180308
DOCDB simple family (application)
EP 17846496 A 20170829; CN 201780053617 A 20170829; JP 2017030951 W 20170829; JP 2018525629 A 20170829; KR 20197006349 A 20170829; PH 12019500064 A 20190109; TW 106129388 A 20170829; US 201716327280 A 20170829