Global Patent Index - EP 1637618 A4

EP 1637618 A4 20061018 - HIGH STRENGTH THIN STEEL SHEET EXCELLENT IN RESISTANCE TO DELAYED FRACTURE AFTER FORMING AND METHOD FOR PREPARATION THEREOF, AND AUTOMOBILE PARTS REQUIRING STRENGTH MANUFACTURED FROM HIGH STRENGTH THIN STEEL SHEET

Title (en)

HIGH STRENGTH THIN STEEL SHEET EXCELLENT IN RESISTANCE TO DELAYED FRACTURE AFTER FORMING AND METHOD FOR PREPARATION THEREOF, AND AUTOMOBILE PARTS REQUIRING STRENGTH MANUFACTURED FROM HIGH STRENGTH THIN STEEL SHEET

Title (de)

HOCHFESTES DÜNNES STAHLBLECH MIT HERVORRAGENDER BESTÄNDIGKEIT GEGENÜBER VERZÖGERTEM BRUCH NACH DEM UMFORMEN UND HERSTELLUNGSVERFAHREN DAFÜR UND AUS HOCHFESTEM DÜNNEM STAHLBLECH GEFERTIGTE FESTIGKEIT ERFORDERNDE AUTOMOBILTEILE

Title (fr)

TOLE MINCE EN ACIER A RESISTANCE ELEVEE PRESENTANT UNE RESISTANCE EXCELLENTE A LA RUPTURE DIFFEREE APRES FORMATION ET PROCEDE DE PREPARATION ASSOCIE, ET PARTIES AUTOMOBILES NECESSITANT UNE CERTAINE RESISTANCE FABRIQUEES A PARTIE DE TOLE MINCE EN ACIER A RESISTANCE ELEVEE

Publication

EP 1637618 A4 20061018 (EN)

Application

EP 03817075 A 20030527

Priority

JP 0306617 W 20030527

Abstract (en)

[origin: EP1637618A1] Steel sheets containing residual austenite of not more than 7 vol.%, crystallized and/or precipitated compounds with particle diameters of 0.01 to 5.0 µm of 100 to 100000 particle/mm 2 and C of 0.05 to 0.3 mass%, Si of not more than 3.0 mass%, Mn of 0.01 to 3.0 mass%, P of not more than 0.02 mass%, S of not more than 0.02 mass%, Al of 0.01 to 3.0 mass%, N of not more than 0.01 mass% and Mg of 0.0002 to 0.01 mass%, with the remainder comprising iron and unavoidable.impurities.

IPC 8 full level

C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/06 (2006.01)

CPC (source: EP US)

C21D 9/46 (2013.01 - EP US); C22C 1/06 (2013.01 - EP US); C22C 38/004 (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 38/12 (2013.01 - EP US); C22C 38/14 (2013.01 - EP US); C22C 38/16 (2013.01 - EP US); C21D 2211/00 (2013.01 - EP US); C21D 2211/004 (2013.01 - EP US)

Citation (search report)

  • [A] EP 1143023 A1 20011010 - NIPPON STEEL CORP [JP]
  • [X] PATENT ABSTRACTS OF JAPAN vol. 2002, no. 02 2 April 2002 (2002-04-02)
  • [X] PATENT ABSTRACTS OF JAPAN vol. 1999, no. 08 30 June 1999 (1999-06-30)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 2000, no. 04 31 August 2000 (2000-08-31)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 1999, no. 01 29 January 1999 (1999-01-29)
  • See references of WO 2004106571A1

Designated contracting state (EPC)

BE DE FR GB

DOCDB simple family (publication)

EP 1637618 A1 20060322; EP 1637618 A4 20061018; EP 1637618 B1 20100714; AU 2003235443 A1 20050121; DE 60333400 D1 20100826; US 2007006948 A1 20070111; US 2011120598 A1 20110526; WO 2004106571 A1 20041209

DOCDB simple family (application)

EP 03817075 A 20030527; AU 2003235443 A 20030527; DE 60333400 T 20030527; JP 0306617 W 20030527; US 55857905 A 20051128; US 92831010 A 20101207