Global Patent Index - EP 0935007 B1

EP 0935007 B1 20021002 - Cobalt-free and titanium-free maraging steel

Title (en)

Cobalt-free and titanium-free maraging steel

Title (de)

Martensitaushärtender Stahl ohne Kobalt und ohne Titan

Title (fr)

Acier maraging sans cobalt et sans titane

Publication

EP 0935007 B1 20021002 (FR)

Application

EP 99400192 A 19990128

Priority

FR 9801241 A 19980204

Abstract (en)

[origin: EP0935007A1] A maraging steel is free from cobalt and titanium and has specified nickel, molybdenum and aluminum contents. A cobalt-free maraging steel has the composition (by wt.) 14-23% Ni, 4-13% Mo, 1-3.5% Al, ≤ 0.01% C, balance Fe and impurities, the sum of Ni + Mo being 23-27% and the sum of Ni + 2.5 x Mo + 2.3 x Al being ≥ 38%.

IPC 1-7

C22C 38/08

IPC 8 full level

C21D 6/00 (2006.01); C21D 8/02 (2006.01); C22C 38/00 (2006.01); C22C 38/06 (2006.01); C22C 38/08 (2006.01); C22C 38/12 (2006.01)

CPC (source: EP US)

C21D 6/001 (2013.01 - EP US); C21D 8/0236 (2013.01 - EP US); C22C 38/06 (2013.01 - EP US); C22C 38/08 (2013.01 - EP US); C22C 38/12 (2013.01 - EP US)

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

EP 0935007 A1 19990811; EP 0935007 B1 20021002; DE 69903201 D1 20021107; DE 69903201 T2 20030618; ES 2185295 T3 20030416; FR 2774396 A1 19990806; FR 2774396 B1 20000310; JP H11264054 A 19990928; US 6136102 A 20001024

DOCDB simple family (application)

EP 99400192 A 19990128; DE 69903201 T 19990128; ES 99400192 T 19990128; FR 9801241 A 19980204; JP 2552799 A 19990202; US 24349299 A 19990203