Global Patent Index - EP 0991789 A1

EP 0991789 A1 2000-04-12 - TOOL STEEL COMPOSITION

Title (en)

TOOL STEEL COMPOSITION

Title (de)

ZUSAMMENSETZUNG VON WERKZEUGSTAHL

Title (fr)

COMPOSITION D'ACIER A OUTILS

Publication

EP 0991789 A1 (FR)

Application

EP 99910459 A

Priority

  • FR 9900735 W
  • FR 9804122 A

Abstract (en)

[origin: FR2777023A1] The invention concerns a composition for tool steel comprising, expressed in weight percentages: C: 0.3 - 0.4 %; Cr: 2.0 - 4.0 %; Mo: 0.8 - 3.0 %; V: 0.4 - 1.0 %; W: 1.5 - 3.0 %; Co: 1.0 - 5.0 %; Si: 0 - 1.0 %; Mn: 0 - 1.0 %; Ni: 0- 1.0 %, the rest mainly consisting of iron and unavoidable impurities. The invention also concerns the method for preparing said composition.

IPC 1-7 (main, further and additional classification)

C22C 38/30

IPC 8 full level (invention and additional information)

C21D 1/18 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/30 (2006.01); C21D 1/20 (2006.01)

CPC (invention and additional information)

C22C 38/30 (2013.01); C21D 1/18 (2013.01); C22C 38/22 (2013.01); C22C 38/24 (2013.01); C21D 1/20 (2013.01)

Citation (search report)

See references of WO 9951788A1

Designated contracting state (EPC)

AT DE ES FR GB IT NL SE

DOCDB simple family

FR 2777023 A1 19991008; FR 2777023 B1 20000616; AT 239103 T 20030515; BR 9906337 A 20001003; CA 2292742 A1 19991014; DE 69907358 D1 20030605; DE 69907358 T2 20040325; DE 991789 T1 20010111; EP 0991789 A1 20000412; EP 0991789 B1 20030502; ES 2198903 T3 20040201; US 6280685 B1 20010828; WO 9951788 A1 19991014