Global Patent Index - EP 0425471 B1

EP 0425471 B1 19941214 - Cold work tool steel with high compression strength and use of these steels.

Title (en)

Cold work tool steel with high compression strength and use of these steels.

Title (de)

Kaltarbeitsstahl mit hoher Druckfestigkeit und Verwendung dieses Stahles.

Title (fr)

Acier à outils pour le façonnage à froid, à haute résistance à la compression et application de ces aciers.

Publication

EP 0425471 B1 19941214 (DE)

Application

EP 90890280 A 19901012

Priority

AT 242389 A 19891023

Abstract (en)

[origin: US5160553A] The invention concerns a cold-worked steel of high compressive strength for tools and parts simultaneously subjected to several stresses. The steel of the invention evinces a composition in % by weight of C: 0.6 to 1.5 Si: 0.2 to 1.6 Mn: 0.2 to 1.2 Cr: 5.0 to 10.0 Mo: up to 3.0 W: up to 6.0 (Mo+2W): 1.0 to 3.0 V: 0.3 to 1.5 Al: 0.2 to 1.6 Nb: up to 0.5 N: up to 0.1 the remainder being iron and process-entailed contaminations, and it is especially provided for tools and parts comprising an anti-wear layer made at higher temperature.

IPC 1-7

C22C 38/22; C22C 38/24; C22C 38/26

IPC 8 full level

C23C 8/22 (2006.01); C22C 38/00 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/26 (2006.01); C23C 8/26 (2006.01); C23C 14/06 (2006.01); C23C 16/30 (2006.01)

CPC (source: EP KR US)

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

Citation (examination)

  • Stahlschlüssel, Verlag Stahlschlüssel Wegst GmbH, 1983, Seiten 4, 179, 181
  • F.Rapatz, Die Edelstähle, Springer-Verlag, 1962, Seiten 56-61, 270-273
  • E.Houdremont, Handbuch der Sonderstahlkunde, Springer-Verlag, 1956, Seiten 1200-1219
  • Stahl Eisen Liste, Verein deutscher Eisenhüttenleute, 8. Auflage, Seiten 65, 66, 255-257

Designated contracting state (EPC)

BE CH DE DK ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0425471 A1 19910502; EP 0425471 B1 19941214; AT 393387 B 19911010; AT A242389 A 19910315; AU 631690 B2 19921203; AU 6492290 A 19910426; BR 9005350 A 19910917; DE 59008009 D1 19950126; DK 0425471 T3 19950220; ES 2068379 T3 19950416; JP 2794641 B2 19980910; JP H03197649 A 19910829; KR 0170386 B1 19990218; KR 910008158 A 19910530; TW 199910 B 19930211; US 5160553 A 19921103; ZA 908467 B 19911224

DOCDB simple family (application)

EP 90890280 A 19901012; AT 242389 A 19891023; AU 6492290 A 19901023; BR 9005350 A 19901023; DE 59008009 T 19901012; DK 90890280 T 19901012; ES 90890280 T 19901012; JP 27252490 A 19901012; KR 900016926 A 19901023; TW 79107707 A 19900913; US 60167690 A 19901023; ZA 908467 A 19901023