Global Patent Index - EP 0889146 B1

EP 0889146 B1 20040506 - Heat resistant chromized steel, process for the production thereof and its use in anti-coking applications

Title (en)

Heat resistant chromized steel, process for the production thereof and its use in anti-coking applications

Title (de)

Hitzebeständiger chromierter Stahl, Verfahren zur seiner Herstellung und seine Verwendung in anti-Verkokungsanwendungen

Title (fr)

Acier réfractaire chromisé, son procédé d'obtention et ses utilisations dans des applications anti-cokage

Publication

EP 0889146 B1 20040506 (FR)

Application

EP 98401567 A 19980625

Priority

FR 9708511 A 19970704

Abstract (en)

[origin: EP0889146A1] Coated steel components with anti-coking properties comprise: a refractory steel substrate containing at least 0.2 % carbon; a carbon-rich diffusion barrier layer; and an external layer containing 90 - 99 % chromium coated by cementation. Also claimed are the preparation and uses of the coated products.

IPC 1-7

C23C 10/42; C10G 9/20

IPC 8 full level

C23C 10/38 (2006.01); C10G 9/20 (2006.01); C23C 10/42 (2006.01)

CPC (source: EP US)

C10G 9/203 (2013.01 - EP US); C23C 10/42 (2013.01 - EP US); C23C 28/023 (2013.01 - EP US); C23C 28/028 (2013.01 - EP US)

Designated contracting state (EPC)

BE DE FR GB IT NL

DOCDB simple family (publication)

EP 0889146 A1 19990107; EP 0889146 B1 20040506; CA 2241349 A1 19990104; CA 2241349 C 20090505; DE 69823585 D1 20040609; DE 69823585 T2 20040916; FR 2765594 A1 19990108; FR 2765594 B1 19990827; JP 4206491 B2 20090114; JP H1180926 A 19990326; US 6348145 B1 20020219

DOCDB simple family (application)

EP 98401567 A 19980625; CA 2241349 A 19980703; DE 69823585 T 19980625; FR 9708511 A 19970704; JP 18840198 A 19980703; US 10986798 A 19980706