Global Patent Index - EP 1807544 B1

EP 1807544 B1 20080206 - HIGH-TENSILE, AIR-HARDENABLE STEEL WITH EXCELLENT DEFORMATION PROPERTIES

Title (en)

HIGH-TENSILE, AIR-HARDENABLE STEEL WITH EXCELLENT DEFORMATION PROPERTIES

Title (de)

HOCHFESTER LUFTHÄRTENDER STAHL MIT AUSGEZEICHNETEN UMFORMEIGENSCHAFTEN

Title (fr)

ACIER AUTOTREMPANT A RESISTANCE ELEVEE PRESENTANT D'EXCELLENTES PROPRIETES DE DEFORMATION

Publication

EP 1807544 B1 20080206 (DE)

Application

EP 05811386 A 20051103

Priority

  • DE 2005001991 W 20051103
  • DE 102004053620 A 20041103

Abstract (en)

[origin: WO2006048009A1] The invention relates to a high-tensile, air-hardenable steel, which can easily be welded and galvanised, has good tempering properties and exhibits excellent deformation properties, particularly for the construction of light-weight vehicles. The inventive steel is composed of the following elements (contents in mass %): C 0.07 to = 0.15; Al = 0.05; Si 0.15 to = 0.30; Mn 1.60 to = 2.10; P = 0.020; S = 0.010; N 0.0030 to = 0.0150; Cr 0.50 to = 1.0; Mo 0.30 to = 0.60; Ti 0.010 to = 0.050; V 0.12 to = 0.20; B 0.0015 to = 0.0040; the remainder being iron including the usual elements present in steel.

IPC 8 full level

C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/38 (2006.01)

CPC (source: EP KR US)

C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/22 (2013.01 - EP KR US); C22C 38/24 (2013.01 - EP US); C22C 38/38 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR IT

DOCDB simple family (publication)

DE 102004053620 A1 20060504; DE 502005002780 D1 20080320; EP 1807544 A1 20070718; EP 1807544 B1 20080206; KR 20070073858 A 20070710; US 2009173412 A1 20090709; WO 2006048009 A1 20060511

DOCDB simple family (application)

DE 102004053620 A 20041103; DE 2005001991 W 20051103; DE 502005002780 T 20051103; EP 05811386 A 20051103; KR 20077010023 A 20070502; US 71857305 A 20051103