EP 2060646 B1 20150617 - STAINLESS STEEL SHEET FOR STRUCTURAL MEMBERS EXCELLENT IN IMPACT -ABSORBING CHARACTERISTICS
Title (en)
STAINLESS STEEL SHEET FOR STRUCTURAL MEMBERS EXCELLENT IN IMPACT -ABSORBING CHARACTERISTICS
Title (de)
EDELSTAHLBLECH FÜR STRUKTURELEMENTE MIT HERVORRAGENDEN STOSSDÄMPFUNGSEIGENSCHAFTEN
Title (fr)
FEUILLE EN ACIER INOXYDABLE POUR DES ÉLÉMENTS STRUCTURAUX PRÉSENTANT D'EXCELLENTES CARACTÉRISTIQUES D'ABSORPTION DES CHOCS
Publication
Application
Priority
- JP 2007071445 W 20071030
- JP 2006350722 A 20061227
Abstract (en)
[origin: EP2060646A1] This invention provides a steel sheet for structural components excellent in impact absorption property comprising, in mass%, C: 0.005 to 0.05%, N: 0.01 to 0.30%, Si: 0.1 to 2%, Mn: 0.1 to 15%, Ni: 0.5 to 8%, Cu: 0.1 to 5%, Cr: 11 to 20%, Al: 0.01 to 0.5%, and a balance of Fe and unavoidable impurities, wherein Md 30 value given by equation (A) is 0 to 100 °C, and total impact energy absorption in dynamic tensile testing is 500 MJ/m 3 or greater: Md 30 = 551 - 462 C + N - 9.2 Si - 8.1 Mn - 13.7 Cr - 29 Ni + Cu
IPC 8 full level
C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/18 (2006.01); C22C 38/20 (2006.01); C22C 38/34 (2006.01); C22C 38/36 (2006.01); C22C 38/40 (2006.01); C22C 38/42 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP KR US)
C22C 38/001 (2013.01 - EP US); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP KR US); C22C 38/06 (2013.01 - EP US); C22C 38/18 (2013.01 - EP US); C22C 38/20 (2013.01 - EP US); C22C 38/34 (2013.01 - EP US); C22C 38/36 (2013.01 - EP US); C22C 38/40 (2013.01 - EP US); C22C 38/42 (2013.01 - EP US); C22C 38/58 (2013.01 - EP US)
Citation (opposition)
Opponent : Outokumpu Oyj
- JP 2006022369 A 20060126 - NIPPON STEEL & SUMIKIN SST
- US 3910788 A 19751007 - FUJIOKA TOKIO, et al
- KR 20060110103 A 20061024 - POSCO [KR]
- US 3806337 A 19740423 - JONES R
- US 3282684 A 19661101 - ALLEN PAUL M
- US 4911883 A 19900327 - KUMAGAI KENICHI [JP], et al
- TALONEN J. ET AL.: "Effect of tensile properties on energy-absorbing capacity of weld-bonded austenitic stainless steel profiles", INTERNATIONAL JOURNAL OF CRASHWORTHINESS, vol. 11, no. 4, April 2006 (2006-04-01), pages 371 - 378, XP055264216
- TALONEN J. ET AL.: "Effect of strain rate on the strain-induced gamma-alpha'-martensite transformation and mechanical properties of austenitic stainless steels", METALLURGICAL AND MATERIALS TRANSACTIONS A, vol. 36 A, February 2005 (2005-02-01), pages 421 - 432, XP019695257
Designated contracting state (EPC)
DE FI FR
DOCDB simple family (publication)
EP 2060646 A1 20090520; EP 2060646 A4 20140101; EP 2060646 B1 20150617; CN 101410543 A 20090415; CN 101410543 B 20110406; JP 2008163358 A 20080717; JP 5165236 B2 20130321; KR 20080106200 A 20081204; US 2010233015 A1 20100916; WO 2008078457 A1 20080703
DOCDB simple family (application)
EP 07831178 A 20071030; CN 200780011149 A 20071030; JP 2006350722 A 20061227; JP 2007071445 W 20071030; KR 20087020686 A 20080822; US 22532707 A 20071030