EP 2270246 A1 20110105 - Hot work tool steel and steel product using the same
Title (en)
Hot work tool steel and steel product using the same
Title (de)
Warmarbeitsstahl und Stahlprodukt damit
Title (fr)
Acier pour outil de travail à chaud et produit d'acier l'utilisant
Publication
Application
Priority
JP 2009143376 A 20090616
Abstract (en)
The present invention provides a hot work tool steel containing: 0.20‰¤C‰¤0.50 mass%, 0.01‰¤Si‰¤0.25 mass%, 0.50<Mn‰¤1.50 mass%, 5.24<Cr‰¤9.00 mass%, 1.24<Mo<2.95 mass%, and 0.30<V<0.70 mass%, with the balance being Fe and unavoidable impurities; and a steel product using the hot work tool steel. The hot work tool steel of the present invention is assured of machinability industrially allowing for working into a die shape and enhanced in the thermal conductivity and impact value as compared with general-purpose die steel (for example, JIS SKD61).
IPC 8 full level
C22C 33/00 (2006.01); C22C 33/04 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01)
CPC (source: EP KR)
C21D 6/002 (2013.01 - EP KR); C21D 7/13 (2013.01 - EP KR); C22C 38/02 (2013.01 - EP KR); C22C 38/04 (2013.01 - EP KR); C22C 38/22 (2013.01 - EP KR); C22C 38/24 (2013.01 - EP KR); C22C 38/26 (2013.01 - EP KR); C22C 38/28 (2013.01 - EP KR); C22C 38/30 (2013.01 - EP KR); C22C 38/42 (2013.01 - EP KR); C22C 38/60 (2013.01 - KR)
Citation (applicant)
- JP H06322483 A 19941122 - DAIDO STEEL CO LTD
- JP H03402 A 19910107 - SUMITOMO METAL IND
- JP H0762494 A 19950307 - DAIDO STEEL CO LTD
- JP S6059053 A 19850405 - DAIDO STEEL CO LTD
- JP H08100239 A 19960416 - DAIDO STEEL CO LTD
- JP 2008056982 A 20080313 - DAIDO STEEL CO LTD
- JP 2004183008 A 20040702 - SUMITOMO METAL IND
- JP 2005307242 A 20051104 - HONDA MOTOR CO LTD, et al
- JP S6462444 A 19890308 - KAWASAKI STEEL CO
- JP 2008121032 A 20080529 - DAIDO STEEL CO LTD
Citation (search report)
- [XI] EP 1696045 A1 20060830 - DAIDO STEEL CO LTD [JP]
- [XI] JP 2003268486 A 20030925 - NIPPON KOSHUHA STEEL CO LTD
- [XI] JP 2007146263 A 20070614 - DAIDO STEEL CO LTD
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 SE SI SK SM TR
Designated extension state (EPC)
BA ME RS
DOCDB simple family (publication)
EP 2270246 A1 20110105; CN 101921959 A 20101222; JP 2011001572 A 20110106; KR 20100135205 A 20101224
DOCDB simple family (application)
EP 10006151 A 20100614; CN 201010203511 A 20100612; JP 2009143376 A 20090616; KR 20100057288 A 20100616