EP 2154260 A1 20100217 - Free-cutting alloy tool steel
Title (en)
Free-cutting alloy tool steel
Title (de)
Automatenlegierungswerkzeugstahl
Title (fr)
Acier à outil en alliage de décolletage
Publication
Application
Priority
- JP 2008189726 A 20080723
- JP 2009091602 A 20090403
Abstract (en)
The present invention provides a free-cutting alloy tool steel containing, in terms of mass%: C: from 0.50 to 0.90%, Si: from 0.50 to 2.20%, Mn: 0.8% or more, Mn+0.08Cr: from 1.35 to 2.05%, Ni: from 0.01 to 0.30%, Mo+0.5W: from 0.01 to 0.50%, V: from 0.01 to 0.15%, S: from 0.03 to 0.15%, with the balance being Fe and unavoidable impurities, in which the contents of Mn and Cr satisfy the following relationship: Mn/Cr: from 0.10 to 0.23, and the contents of Mo, W and Mn satisfy the following relationship: (Mo+0.5W)/Mn: 0.55 or less.
IPC 8 full level
C22C 38/18 (2006.01); B21D 37/01 (2006.01)
CPC (source: EP KR)
C22C 38/02 (2013.01 - KR); C22C 38/04 (2013.01 - KR); C22C 38/18 (2013.01 - EP); C22C 38/38 (2013.01 - KR)
Citation (applicant)
- JP H11131182 A 19990518 - DAIDO STEEL CO LTD
- JP 2002167644 A 20020611 - DAIDO STEEL CO LTD
- JP 2001234278 A 20010828 - DAIDO STEEL CO LTD
- JP 2008189726 A 20080821 - KAO CORP
- JP 2009091602 A 20090430 - MITSUBISHI ELECTRIC CORP
Citation (search report)
- [A] JP 2007197746 A 20070809 - DAIDO STEEL CO LTD
- [A] US 2005252580 A1 20051117 - SHIMIZU TAKAYUKI [JP], et al
- [A] WO 8903898 A1 19890505 - UDDEHOLM TOOLING AB [SE]
- [A] JP 2001020041 A 20010123 - HITACHI METALS LTD
- [A] JP 2001316769 A 20011116 - DAIDO STEEL CO LTD
Designated contracting state (EPC)
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 SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
EP 2154260 A1 20100217; EP 2154260 B1 20110330; AT E503853 T1 20110415; CN 101634002 A 20100127; CN 101634002 B 20130731; DE 602009000974 D1 20110512; JP 2010047831 A 20100304; JP 5504680 B2 20140528; KR 101608087 B1 20160331; KR 20100010918 A 20100202
DOCDB simple family (application)
EP 09009568 A 20090723; AT 09009568 T 20090723; CN 200910159952 A 20090723; DE 602009000974 T 20090723; JP 2009091602 A 20090403; KR 20090067386 A 20090723