Global Patent Index - EP 1138796 A1

EP 1138796 A1 20011004 - High strength hot rolled steel with high yield strength for use in the car industry

Title (en)

High strength hot rolled steel with high yield strength for use in the car industry

Title (de)

Hochfester warmgewalzter Stahl mit hoher Streckgrenze zur Verwendung in Kraftfahrzeugen

Title (fr)

Acier laminé à chaud à très haute limite d'élasticité et résistance mécanique utilisable notamment pour la réalisation de pièce de véhicules automobiles

Publication

EP 1138796 A1 20011004 (FR)

Application

EP 01400777 A 20010327

Priority

FR 0003958 A 20000329

Abstract (en)

A hot rolled steel with a very high elastic limit and mechanical strength for the production of motor vehicle components has the following composition by weight;- 0.08 - 0.2% carbon, 1 - 2% manganese, 0.02 - 0.1% aluminium, less than 0.5% silicon, less than 0.03% phosphorus, less than 0.01% sulphur, less than 0.3% vanadium, less than 1% chromium, less than 0.015% nitrogen, less than 0.6% molybdenum, the remainder being iron and inherent production impurities. An Independent claim is included for a method for the production of a hot rolled steel strip with this composition.

Abstract (fr)

Acier laminé à chaud à très haute résistance mécanique utilisable notamment pour la réalisation de pièce de véhicules automobiles caractérisée en la composition pondérale suivante : 0,08% < carbone < 0,16%, 1% < manganèse < 2%, 0,02% < aluminium < 0,1%, silicium < 0,5%, phosphore < 0,03%, soufre < 0,01%, vanadium < 0,3%, chrome < 1%, azote < 0,015%, molybdène < 0,6% <IMAGE>

IPC 1-7

C22C 38/04; C22C 38/38; C21D 8/02

IPC 8 full level

C21D 9/46 (2006.01); C21D 8/02 (2006.01); C22C 38/00 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/38 (2006.01); C21D 1/19 (2006.01)

CPC (source: EP US)

C21D 8/0226 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/22 (2013.01 - EP US); C22C 38/24 (2013.01 - EP US); C22C 38/38 (2013.01 - EP US); C21D 1/19 (2013.01 - EP US); C21D 2211/002 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

EP 1138796 A1 20011004; EP 1138796 B1 20060628; AR 027746 A1 20030409; AT E331821 T1 20060715; BR 0101222 A 20011030; BR 0101222 B1 20090113; CA 2342256 A1 20010929; CA 2342256 C 20091006; DE 60121084 D1 20060810; DE 60121084 T2 20070614; ES 2267692 T3 20070316; FR 2807068 A1 20011005; FR 2807068 B1 20021011; JP 2001316767 A 20011116; JP 4846916 B2 20111228; US 2001049956 A1 20011213; US 6554919 B2 20030429

DOCDB simple family (application)

EP 01400777 A 20010327; AR P010101513 A 20010329; AT 01400777 T 20010327; BR 0101222 A 20010328; CA 2342256 A 20010327; DE 60121084 T 20010327; ES 01400777 T 20010327; FR 0003958 A 20000329; JP 2001093740 A 20010328; US 81963001 A 20010329