EP 2816128 A4 20150520 - SOFT-NITRIDING STEEL AND SOFT-NITRIDED COMPONENT USING STEEL AS MATERIAL
Title (en)
SOFT-NITRIDING STEEL AND SOFT-NITRIDED COMPONENT USING STEEL AS MATERIAL
Title (de)
WEICHNITRIERUNGSSTAHL UND WEICHNITRIERTE KOMPONENTE UNTER VERWENDUNG VON STAHL ALS MATERIAL
Title (fr)
ACIER À NITRURATION MODÉRÉE ET MATIÈRE D'ACIER UTILISANT UN COMPOSANT À NITRURATION MODÉRÉE
Publication
Application
Priority
- JP 2012031031 A 20120215
- JP 2013000838 W 20130215
Abstract (en)
[origin: EP2816128A1] According to the present invention, it is possible to obtain steel for nitrocarburizing having a predetermined chemical composition, a bainite area ratio exceeding 50 % and excellent machinability by cutting before nitrocarburizing, and having strength and toughness equivalent to conventional steel, such as SCr420 carburized steel material, and excellent fatigue properties after nitrocarburizing.
IPC 8 full level
C22C 38/00 (2006.01); C21D 6/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C22C 38/32 (2006.01); C22C 38/38 (2006.01); C22C 38/60 (2006.01); C23C 8/32 (2006.01)
CPC (source: EP KR US)
C21D 6/002 (2013.01 - EP US); C22C 38/001 (2013.01 - EP US); C22C 38/002 (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 38/22 (2013.01 - EP US); C22C 38/24 (2013.01 - EP US); C22C 38/26 (2013.01 - EP US); C22C 38/28 (2013.01 - EP US); C22C 38/32 (2013.01 - EP US); C22C 38/38 (2013.01 - EP US); C22C 38/60 (2013.01 - EP KR US); C23C 8/32 (2013.01 - EP US); C21D 2211/002 (2013.01 - US)
Citation (search report)
- [X] US 2011186182 A1 20110804 - CHIDA TETSUSHI [JP], et al
- [XI] JP 2006274388 A 20061012 - NIPPON STEEL CORP
- [XI] JP H10147834 A 19980602 - NIPPON STEEL CORP
- [XI] EP 1143026 A1 20011010 - SUMITOMO METAL IND [JP]
- [XI] JP 2007197777 A 20070809 - JFE STEEL KK
- [XI] JP 2007197776 A 20070809 - JFE STEEL KK
- [XA] US 6264760 B1 20010724 - TAMEHIRO HIROSHI [JP], et al
- [XA] WO 0039352 A2 20000706 - EXXONMOBIL UPSTREAM RES CO [US]
- [XA] WO 9838345 A1 19980903 - EXXON PRODUCTION RESEARCH CO [US], et al
- [A] EP 1167561 A2 20020102 - MITSUBISHI STEEL MURORAN INC [JP]
- [A] JP 2011122208 A 20110623 - JFE BARS & SHAPES CORP, et al
- See also references of WO 2013121794A1
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
DOCDB simple family (publication)
EP 2816128 A1 20141224; EP 2816128 A4 20150520; EP 2816128 B1 20190206; CN 104114733 A 20141022; JP 5449626 B1 20140319; JP WO2013121794 A1 20150511; KR 20140129081 A 20141106; MY 177826 A 20200923; US 2015020926 A1 20150122; WO 2013121794 A1 20130822; WO 2013121794 A8 20140717
DOCDB simple family (application)
EP 13748467 A 20130215; CN 201380009412 A 20130215; JP 2013000838 W 20130215; JP 2013532781 A 20130215; KR 20147024603 A 20130215; MY PI2014702217 A 20130215; US 201314378553 A 20130215