EP 0813613 A1 19971229 - METHOD FOR MAKING STEEL WIRES AND SHAPED WIRES, AND USE THEREOF IN FLEXIBLE DUCTS
Title (en)
METHOD FOR MAKING STEEL WIRES AND SHAPED WIRES, AND USE THEREOF IN FLEXIBLE DUCTS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON STAHLDRÄHTEN, VERSTÄRKUNGSDRÄHTE UND VERWENDUNG IN BIEGSAMEN ROHRLEITUNGEN
Title (fr)
PROCEDE DE FABRICATION DE FILS EN ACIER - FILS DE FORME ET APPLICATION A UNE CONDUITE FLEXIBLE
Publication
Application
Priority
- FR 9600363 W 19960308
- FR 9503093 A 19950310
Abstract (en)
[origin: WO9628575A1] A method for making steel wires, wherein an elongate shaped wire is produced by rolling or drawing steel consisting of 0.05-0.8 % C, 0.4-1.5 % Mn, 0-2.5 % Cr, 0.1-0.6 % Si, 0-1 % Mo, no more than 0.25 % Ni, and no more than 0.02 % S and P, and a first heat treatment is performed on the shaped wire, including at least one step of quenching under predetermined conditions to achieve an HRC hardness of at least 32, a predominantly martensitic and bainitic steel structure and a small amount of ferrite. A shaped wire and a flexible tube for conveying an H2S-containing effluent are disclosed.
IPC 1-7
IPC 8 full level
C21D 1/18 (2006.01); C21D 1/30 (2006.01); C21D 8/06 (2006.01); C21D 9/52 (2006.01); C22C 38/00 (2006.01); C22C 38/44 (2006.01)
CPC (source: EP US)
C21D 8/06 (2013.01 - EP US); C22C 38/00 (2013.01 - EP US)
Citation (search report)
See references of WO 9628575A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9628575 A1 19960919; AT E184657 T1 19991015; AU 5007596 A 19961002; AU 715625 B2 20000203; BR 9607231 A 19971111; DE 69604279 D1 19991021; DK 0813613 T3 19991220; EP 0813613 A1 19971229; EP 0813613 B1 19990915; FR 2731371 A1 19960913; FR 2731371 B1 19970430; JP 4327247 B2 20090909; JP H11501986 A 19990216; NO 321040 B1 20060306; NO 974167 D0 19970909; NO 974167 L 19970909; US 5922149 A 19990713
DOCDB simple family (application)
FR 9600363 W 19960308; AT 96906800 T 19960308; AU 5007596 A 19960308; BR 9607231 A 19960308; DE 69604279 T 19960308; DK 96906800 T 19960308; EP 96906800 A 19960308; FR 9503093 A 19950310; JP 52732496 A 19960308; NO 974167 A 19970909; US 91322297 A 19971104