Global Patent Index - EP 1354649 B1

EP 1354649 B1 20060809 - Twin roll strip casting method for a high carbon martensitic steel grade and use of the cast strip

Title (en)

Twin roll strip casting method for a high carbon martensitic steel grade and use of the cast strip

Title (de)

Zweirollen-Giessverfahren zum Herstellen eines hohe Kohlenstoffgehalte aufweisenden martensitischen Stahlbands und Verwendung eines solchen Stahlbands

Title (fr)

Méthode de coulée directe de bandes minces d'acier à haut carbone martensitique et utilisation de la bande

Publication

EP 1354649 B1 20060809 (DE)

Application

EP 03001761 A 20030128

Priority

DE 10215597 A 20020410

Abstract (en)

[origin: EP1354649A1] Production of a martensitic steel strip having a high carbon content comprises melting a steel, casting the melt in a casting gap formed between two rotating rollers to form a thin strip having a thickness of maximum 10 mm, and rapidly cooling at a cooling speed of at least 200 K/s. Production of a martensitic steel strip having a high carbon content comprises: melting a steel; casting the melt in a casting gap formed between two rotating rollers to form a thin strip having a thickness of maximum 10 mm; and rapidly cooling at a cooling speed of at least 200 K/s. The steel comprises (in wt.%): at least 0.15 carbon (C), 12.0-20.0 chromium (Cr), at most 1.0 silicon (Si), at most 2.0 manganese (Mn), at most 2.0 molybdenum (Mo), at most 1.0 nickel (Ni), at most 1.0 vanadium (V), at most 0.1 nitrogen (N), at most 0.1 titanium (Ti) and a balance of iron (Fe) and impurities.

IPC 8 full level

B22D 11/06 (2006.01); B21B 3/02 (2006.01); B22D 11/00 (2006.01); B21B 1/46 (2006.01)

CPC (source: EP)

B22D 11/002 (2013.01); B22D 11/0622 (2013.01); B21B 1/463 (2013.01); B21B 3/02 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

DOCDB simple family (publication)

EP 1354649 A1 20031022; EP 1354649 B1 20060809; AT E335561 T1 20060915; DE 10215597 A1 20031030; DE 50304538 D1 20060921; ES 2269839 T3 20070401; PL 198089 B1 20080530; PL 359616 A1 20031020

DOCDB simple family (application)

EP 03001761 A 20030128; AT 03001761 T 20030128; DE 10215597 A 20020410; DE 50304538 T 20030128; ES 03001761 T 20030128; PL 35961603 A 20030409