EP 1705260 A4 20080813 - STEEL
Title (en)
STEEL
Title (de)
STAHL
Title (fr)
ACIER
Publication
Application
Priority
- RU 2004000307 W 20040806
- RU 2003137757 A 20031230
Abstract (en)
[origin: EP1705260A1] This is an invention in metallurgy, referring specifically to steel with high ductility in subzero temperatures, good weldability, resistance to brittle behavior and corrosion, heat-resistance in high temperatures. Such steel can be used for the production of oil pipelines, natural gas pipelines, product pipelines, offshore platforms, welded structures and containers which can operate under pressure, different equipment and its component parts operating in temperatures from - 100°C to +450°C. The steel containing carbon, manganese, silicium, chrome, nickel, vanadium, niobium, titanium, aluminium, calcium, sulphur, phosphorus, nitrogen, copper, stibium, stannum, arsenic and iron additionally includes molybdenum, with the following component ratio (weight, %): This being the case, total content of nickel and manganese is related to molybdenum and phosphorus content (weight. %) according to the following equation: Ni + Mn 1 + Mo ‹ P Œ© 0.03
IPC 8 full level
C22C 38/60 (2006.01); C22C 38/12 (2006.01)
CPC (source: EP KR)
C22C 38/02 (2013.01 - EP); C22C 38/04 (2013.01 - EP); C22C 38/42 (2013.01 - EP); C22C 38/44 (2013.01 - EP); C22C 38/60 (2013.01 - KR)
Citation (search report)
- [A] JP 2001152248 A 20010605 - NIPPON STEEL CORP
- [A] US 5876521 A 19990302 - KOO JAYOUNG [US], et al
- [A] WO 9905328 A1 19990204 - EXXON PRODUCTION RESEARCH CO [US], et al
- See references of WO 2005064032A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1705260 A1 20060927; EP 1705260 A4 20080813; EP 1705260 B1 20100707; AT E473310 T1 20100715; CN 100513622 C 20090715; CN 1926257 A 20070307; DE 602004028045 D1 20100819; JP 2007517139 A 20070628; KR 20070008543 A 20070117; RU 2241780 C1 20041210; UA 78268 C2 20070315; UA 8385 U 20050815; WO 2005064032 A1 20050714; WO 2005064032 A8 20061102
DOCDB simple family (application)
EP 04775251 A 20040806; AT 04775251 T 20040806; CN 200480039636 A 20040806; DE 602004028045 T 20040806; JP 2006546883 A 20040806; KR 20067014138 A 20060713; RU 2003137757 A 20031230; RU 2004000307 W 20040806; UA 20040706306 A 20040728; UA 20040706307 U 20040728