Title (en)

HIGH-HARDNESS BULLETPROOF STEEL HAVING EXCELLENT LOW-TEMPERATURE TOUGHNESS, AND MANUFACTURING METHOD THEREFOR

Title (de)

KUGELSICHERER STAHL MIT HOHER HÄRTE UND HERVORRAGENDER TIEFTEMPERATURZÄHIGKEIT UND HERSTELLUNGSVERFAHREN DAFÜR

Title (fr)

ACIER PARE-BALLES À DURETÉ ÉLEVÉE AYANT UNE EXCELLENTE RÉSISTANCE À BASSE TEMPÉRATURE, ET SON PROCÉDÉ DE PRODUCTION

Publication

EP 4386104 A1 20240619 (EN)

Application

EP 22856100 A 20220803

Priority

• KR 20210106204 A 20210811
• KR 2022011499 W 20220803

Abstract (en)

The present invention relates to high-hardness bulletproof steel having excellent low-temperature toughness, and a manufacturing method therefor. More specifically, the present invention relates to high-hardness bulletproof steel having excellent low-temperature toughness, and a manufacturing method therefor, the high-hardness bulletproof steel being preferably usable in an armored vehicle, an explosion-proof structure and the like.

IPC 8 full level

C22C 38/44 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/46 (2006.01); C22C 38/54 (2006.01)

CPC (source: EP KR)

C21D 1/18 (2013.01 - EP); C21D 6/004 (2013.01 - EP); C21D 6/005 (2013.01 - EP); C21D 6/008 (2013.01 - EP); C21D 8/02 (2013.01 - EP); C21D 8/0205 (2013.01 - EP); C21D 8/0226 (2013.01 - EP KR); C21D 8/0263 (2013.01 - EP); C21D 9/46 (2013.01 - EP KR); C22C 38/02 (2013.01 - EP); C22C 38/04 (2013.01 - EP); C22C 38/44 (2013.01 - EP KR); C22C 38/46 (2013.01 - EP KR); C22C 38/48 (2013.01 - EP); C22C 38/54 (2013.01 - EP KR); C21D 2211/008 (2013.01 - KR)

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

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4386104 A1 20240619; KR 20230024090 A 20230220; WO 2023018101 A1 20230216

DOCDB simple family (application)

EP 22856100 A 20220803; KR 20210106204 A 20210811; KR 2022011499 W 20220803