EP 3168319 B1 20201216 - MICROALLOYED STEEL FOR HEAT-FORMING HIGH-RESISTANCE AND HIGH-YIELD-STRENGTH PARTS
Title (en)
MICROALLOYED STEEL FOR HEAT-FORMING HIGH-RESISTANCE AND HIGH-YIELD-STRENGTH PARTS
Title (de)
MIKROLEGIERTER STAHL ZUM WARMFORMEN VON HOCHBESTÄNDIGEN TEILEN MIT HOHER STRECKGRENZE
Title (fr)
ACIER HAUTE RÉSISTANCE FAIBLEMENT ALLIÉ POUR FORMAGE À CHAUD DE PIÈCES DE HAUTE RÉSISTANCE ET DE LIMITE ÉLASTIQUE ÉLEVÉE
Publication
Application
Priority
ES 2014070558 W 20140708
Abstract (en)
[origin: EP3168319A1] The invention relates to a microalloyed steel for heat-forming high-strength and high-yield strength parts, and to a method for producing components made of said steel, having a specific composition of the following elements: 0.30% ‰¤ C ‰¤ 0.50%, 0.50% ‰¤ Si ‰¤ 1.50%, 0.50% ‰¤ Mn ‰¤ 1.50%, 0.005% ‰¤ V < 0.50%, 0.001% ‰¤ Ti < 0.050% which, using a method suitable for producing said steel, achieves low P content and good inclusion cleanliness. In addition, tensile strength values between 1050 and 1200 MPa are achieved using a controlled cooling process.
IPC 8 full level
C22C 38/02 (2006.01); C21C 7/064 (2006.01); C21C 7/10 (2006.01); C22C 38/00 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01)
CPC (source: EP)
C21C 7/064 (2013.01); C21C 7/10 (2013.01); C22C 38/001 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C21C 2300/02 (2013.01); C21C 2300/08 (2013.01)
Citation (examination)
- JP H10121200 A 19980512 - SUMITOMO METAL IND
- SEROSH ENGINEER ET AL: "A review of the development and application of microalloyed medium car- bon steels", STEEL RESEARCH INTERNATIONAL, vol. 58, no. 8, 2 August 1987 (1987-08-02), pages 369 - 376, XP055600442
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3168319 A1 20170517; EP 3168319 A4 20180124; EP 3168319 B1 20201216; ES 2860953 T3 20211005; WO 2016005615 A1 20160114
DOCDB simple family (application)
EP 14897352 A 20140708; ES 14897352 T 20140708; ES 2014070558 W 20140708