Global Patent Index - EP 1971700 A1

EP 1971700 A1 20080924 - ULTRA-HIGH STRENGTH MARTENSITIC ALLOY

Title (en)

ULTRA-HIGH STRENGTH MARTENSITIC ALLOY

Title (de)

ULTRAHOCHFESTE MARTENSITISCHE LEGIERUNG

Title (fr)

ALLIAGE MARTENSITIQUE DE RESISTANCE ULTRA ELEVEE

Publication

EP 1971700 A1 20080924 (EN)

Application

EP 06836627 A 20061030

Priority

  • US 2006042205 W 20061030
  • US 28308405 A 20051118

Abstract (en)

[origin: WO2007058759A1] An age hardenable martensitic steel alloy is disclosed. The alloy has the following composition in weight percent. C 0.30-0.36; Mn 0.05 max.; Si 0.05 max.; P 0.01 max.; S 0.0010 max.; Cr 1.30-3.2; Ni 10.0-13.0; Mo 1.0-2.70; Co 13.8-17.4; Ti 0.02 max.; Al 0.005 max.; Ce 0.030 max.; La 0.010 max. The balance is iron and the usual impurities. The composition of this alloy is balanced to provide a unique combination of very high strength, together with good toughness, ductility, and resistance to fatigue.

IPC 8 full level

C22C 38/10 (2006.01)

CPC (source: EP KR US)

C22C 38/005 (2013.01 - KR); C22C 38/44 (2013.01 - EP KR US); C22C 38/52 (2013.01 - EP KR US)

Citation (search report)

See references of WO 2007058759A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2007058759 A1 20070524; CA 2629515 A1 20070524; EP 1971700 A1 20080924; JP 2009516082 A 20090416; KR 20080068753 A 20080723; TW 200732483 A 20070901; US 2007113931 A1 20070524; US 2009266451 A1 20091029

DOCDB simple family (application)

US 2006042205 W 20061030; CA 2629515 A 20061030; EP 06836627 A 20061030; JP 2008541194 A 20061030; KR 20087014636 A 20080617; TW 95142641 A 20061117; US 28308405 A 20051118; US 36627309 A 20090205