EP 3762517 A1 20210113 - BIMETALLIC SCREW WITH MARTENSITICALLY HARDENABLE STEEL
Title (en)
BIMETALLIC SCREW WITH MARTENSITICALLY HARDENABLE STEEL
Title (de)
BIMETALLSCHRAUBE MIT MARTENSITISCH HÄRTBAREM STAHL
Title (fr)
VIS BI-MÉTAL EN ACIER MARTENSITIQUE DURCISSABLE
Publication
Application
Priority
- EP 18160618 A 20180308
- EP 2019054951 W 20190228
Abstract (en)
[origin: CA3090053A1] The invention relates to a method for producing a bimetallic screw having a tip element and a drive element, in which a first blank comprising a steel having 0.07 to 0.14 wt.% ofcarbon, 13 to 15 wt.% ofchromium, 1.3 to 1.7 wt.%of molybdenum, 1.5 to 2.0 wt.%of nickel and 1.0 to 1.5 wt.% ofmanganese is provided and the tip element is produced from the first blank. The invention further relates to a bimetallic screw having a tip element and a drive element, wherein the tip element and the drive element have a different material composition, and wherein the tip element has at least in regions a steel having 0.07 to 0.14 wt.% ofcarbon, 13 to 15 wt.% ofchromium, 1.3 to 1.7 wt.%of molybdenum, 1.5 to 2.0 wt.%of nickel and 1.0 to 1.5 wt.% ofmanganese.
IPC 8 full level
C21D 1/74 (2006.01); C21D 1/06 (2006.01); C21D 1/76 (2006.01); C21D 6/00 (2006.01); C21D 6/04 (2006.01); C21D 9/00 (2006.01); C22C 38/44 (2006.01); C23C 8/26 (2006.01); C23C 8/32 (2006.01); F16B 25/00 (2006.01)
CPC (source: EP US)
C21D 1/06 (2013.01 - EP); C21D 1/74 (2013.01 - EP); C21D 1/76 (2013.01 - EP); C21D 6/004 (2013.01 - EP US); C21D 6/005 (2013.01 - US); C21D 6/04 (2013.01 - EP); C21D 9/0093 (2013.01 - EP US); C22C 38/04 (2013.01 - US); C22C 38/14 (2013.01 - EP); C22C 38/44 (2013.01 - EP US); C23C 8/26 (2013.01 - EP); C23C 8/32 (2013.01 - EP US); F16B 25/0026 (2013.01 - EP); F16B 25/0094 (2013.01 - EP); F16B 33/00 (2013.01 - US); C21D 2211/008 (2013.01 - EP)
Citation (search report)
See references of WO 2019170507A1
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
DOCDB simple family (publication)
EP 3536812 A1 20190911; AU 2019232331 A1 20200730; BR 112020015105 A2 20201208; CA 3090053 A1 20190912; CN 111742067 A 20201002; EP 3762517 A1 20210113; JP 2021515848 A 20210624; RU 2020133019 A 20220408; TW 201938801 A 20191001; US 2021054866 A1 20210225; WO 2019170507 A1 20190912
DOCDB simple family (application)
EP 18160618 A 20180308; AU 2019232331 A 20190228; BR 112020015105 A 20190228; CA 3090053 A 20190228; CN 201980014173 A 20190228; EP 19706712 A 20190228; EP 2019054951 W 20190228; JP 2020546865 A 20190228; RU 2020133019 A 20190228; TW 108101641 A 20190116; US 201916963568 A 20190228