Global Patent Index - EP 1163063 A4

EP 1163063 A4 20020904 - HARDENED STEEL SECURITY MATERIALS

Title (en)

HARDENED STEEL SECURITY MATERIALS

Title (de)

SICHERHEITSMATERIAL AUS GEHÄRTETEM STAHL

Title (fr)

MATERIAUX DE SECURITE EN ACIER TREMPE

Publication

EP 1163063 A4 20020904 (EN)

Application

EP 00904691 A 20000128

Priority

  • AU 0000048 W 20000128
  • AU PP836199 A 19990128
  • AU PQ130199 A 19990630
  • AU PQ193099 A 19990802

Abstract (en)

[origin: WO0044511A1] A hardened steel bar, sheet, plate or other shaped material suitable for security purposes is formed from a nitridable steel which has been subjected to austenitization, oil quenching, tempering and then nitriding to provide a hardened steel material having a surface hardness of at least about 50 HRC (Hardness Rockwell "C").

IPC 1-7

B21C 37/00; C21D 1/18; C21D 9/00; C21D 9/08; C22C 38/18; E06B 9/01; C22C 38/22; C23C 8/26

IPC 8 full level

C22C 38/06 (2006.01); C22C 38/22 (2006.01); C23C 8/02 (2006.01); C23C 8/26 (2006.01); E06B 9/01 (2006.01); C21D 1/18 (2006.01)

CPC (source: EP)

C22C 38/06 (2013.01); C22C 38/22 (2013.01); C23C 8/02 (2013.01); C23C 8/26 (2013.01); E06B 9/01 (2013.01); C21D 1/18 (2013.01)

Citation (search report)

  • [X] GB 621890 A 19490421 - NITRALLOY CORP
  • [A] EDITED BY J. R. DAVIS: "Carbon and alloy steels", March 1996, ASM INTERNATIONAL, USA, XP002200887
  • [A] EDITED BY F. BRIAN PICKERING: "Constitution and properties of steels", 1992, VCH, WEINHEIM, XP002200888
  • See references of WO 0044511A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 0044511 A1 20000803; EP 1163063 A1 20011219; EP 1163063 A4 20020904

DOCDB simple family (application)

AU 0000048 W 20000128; EP 00904691 A 20000128