EP 3765646 B1 20230802 - STEEL COMPOSITION
Title (en)
STEEL COMPOSITION
Title (de)
STAHLZUSAMMENSETZUNG
Title (fr)
COMPOSITION D'ACIER
Publication
Application
Priority
- FR 1852202 A 20180314
- FR 2019050573 W 20190314
Abstract (en)
[origin: WO2019186016A1] The present invention relates to a steel composition containing, in percentages by weight of the total composition: carbon: 0.06-0.20, preferably 0.08-0.18; chromium: 2.5-5.0, preferably 3.0-4.5; molybdenum: 4.0-6.0; tungsten: 0.01-3.0; vanadium: 1.0-3.0, preferably 1.5-2.5; nickel: 2.0-4.0; cobalt: 9.0-12.5, preferably, 9.5-11.0; iron: the remainder, as well as inevitable impurities, optionally further comprising one or more of the following elements: niobium: < 2.0; nitrogen: < 0.50, preferably < 0.20; silicon: < 0.70, preferably 0.05-0.50; manganese: < 0.70, preferably 0.05-0.50; aluminium: < 0.15, preferably < 0.10; with the combined content of niobium + vanadium ranging from 1.0 to 3.5; and the carbon + nitrogen content ranging from 0.06 to 0.50. The invention further relates to a method for manufacturing the above composition, the steel blank obtained therewith, and a mechanical body or injection system comprising said blank.
IPC 8 full level
C22C 38/44 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/52 (2006.01)
CPC (source: EP US)
C21D 8/005 (2013.01 - US); C21D 9/32 (2013.01 - US); C21D 9/40 (2013.01 - US); C22C 38/001 (2013.01 - EP US); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP); C22C 38/06 (2013.01 - US); C22C 38/12 (2013.01 - US); C22C 38/44 (2013.01 - EP); C22C 38/46 (2013.01 - EP); C22C 38/48 (2013.01 - EP); C22C 38/52 (2013.01 - EP US); C23C 8/22 (2013.01 - US); C23C 8/26 (2013.01 - US); C23C 8/32 (2013.01 - US); C21D 2211/001 (2013.01 - US); C21D 2211/008 (2013.01 - US)
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)
FR 3078978 A1 20190920; FR 3078978 B1 20200313; EP 3765646 A1 20210120; EP 3765646 B1 20230802; ES 2960814 T3 20240306; PL 3765646 T3 20231127; US 2021010116 A1 20210114; WO 2019186016 A1 20191003
DOCDB simple family (application)
FR 1852202 A 20180314; EP 19742812 A 20190314; ES 19742812 T 20190314; FR 2019050573 W 20190314; PL 19742812 T 20190314; US 201916980168 A 20190314