EP 0521808 B1 20020807 - Method for producing deep drawing steel sheets
Title (en)
Method for producing deep drawing steel sheets
Title (de)
Verfahren zum Herstellen von Tiefziehblechen
Title (fr)
Procédé de fabrication de tôles minces destinées à l'emboutissage
Publication
Application
Priority
FR 9108565 A 19910704
Abstract (en)
[origin: EP0521808A1] Steel with improved deep-drawability is characterised in that it contains carbon in a proportion of less than 0.015 %, manganese in a proportion of 0.15 to 0.25 %, sulphur in a proportion of less than 0.012 % and aluminium in a proportion of less than 0.04 %. <??>This steel is intended for the manufacture of thin sheet metal intended for deep drawing, by a process comprising particularly the following operations: - production in a converter of a steel which has the above composition; - hot rolling entirely in an austenitic region; - reeling at a temperature above 650 DEG C; - continuous annealing, after cold rolling, at a temperature below 700 DEG C.
IPC 1-7
IPC 8 full level
C21D 8/04 (2006.01); C21D 9/48 (2006.01); C22C 38/00 (2006.01); C22C 38/06 (2006.01)
CPC (source: EP KR US)
C21D 8/04 (2013.01 - KR); C21D 8/0426 (2013.01 - EP US); C21D 9/46 (2013.01 - KR); C21D 9/48 (2013.01 - KR); C22C 38/00 (2013.01 - KR); C21D 8/0436 (2013.01 - EP US); C21D 8/0468 (2013.01 - EP US); C21D 8/0473 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL PT SE
DOCDB simple family (publication)
EP 0521808 A1 19930107; EP 0521808 B1 20020807; AT E221922 T1 20020815; CA 2073131 A1 19930105; CA 2073131 C 20030429; DE 69232717 D1 20020912; DE 69232717 T2 20030430; DK 0521808 T3 20021202; ES 2180532 T3 20030216; FR 2678641 A1 19930108; FR 2678641 B1 19981120; JP H05195147 A 19930803; KR 100244363 B1 20000302; KR 930002004 A 19930222; PT 521808 E 20021231; US 5232524 A 19930803
DOCDB simple family (application)
EP 92470020 A 19920611; AT 92470020 T 19920611; CA 2073131 A 19920703; DE 69232717 T 19920611; DK 92470020 T 19920611; ES 92470020 T 19920611; FR 9108565 A 19910704; JP 19757092 A 19920701; KR 920010959 A 19920624; PT 92470020 T 19920611; US 90460892 A 19920626