EP 1678335 B1 20120111 - LOW CARBON ALLOY STEEL TUBE HAVING ULTRA HIGH STRENGTH AND EXCELLENT TOUGHNESS AT LOW TEMPERATURE AND METHOD OF MANUFACTURING THE SAME
Title (en)
LOW CARBON ALLOY STEEL TUBE HAVING ULTRA HIGH STRENGTH AND EXCELLENT TOUGHNESS AT LOW TEMPERATURE AND METHOD OF MANUFACTURING THE SAME
Title (de)
ROHR AUS KOHLENSTOFFARMEM LEGIERUNGSSTAHL MIT ULTRAHOHER FESTIGKEIT UND HERVORRAGENDER ZÄHIGKEIT BEI NIEDRIGER TEMPERATUR UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
TUBE EN ALLIAGE D'ACIER A FAIBLE TENEUR EN CARBONE PRESENTANT UNE RESISTANCE TRES ELEVEE ET UNE TENACITE EXCELLENTE A BASSE TEMPERATURE, ET SON PROCEDE DE FABRICATION
Publication
Application
Priority
- IB 2004003311 W 20041011
- US 50980603 P 20031010
- US 95760504 A 20041005
Abstract (en)
[origin: US2005076975A1] A low carbon alloy steel tube and a method of manufacturing the same, in which the steel tube consists essentially of, by weight: about 0.06% to about 0.18% carbon; about 0.5% to about 1.5% manganese; about 0.1% to about 0.5% silicon; up to about 0.015% sulfur; up to about 0.025% phosphorous; up to about 0.50% nickel; about 0.1% to about 1.0% chromium; about 0.1% to about 1.0% molybdenum; about 0.01% to about 0.10% vanadium; about 0.01% to about 0.10% titanium; about 0.05% to about 0.35% copper; about 0.010% to about 0.050% aluminum; up to about 0.05% niobium; up to about 0.15% residual elements; and the balance iron and incidental impurities. The steel has a tensile strength of at least about 145 ksi and exhibits ductile behavior at temperatures as low as -60° C.
IPC 8 full level
C21D 8/10 (2006.01); C21D 9/08 (2006.01); C22C 38/00 (2006.01); C22C 38/20 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01)
CPC (source: EP KR US)
C21D 8/10 (2013.01 - EP KR US); C22C 38/02 (2013.01 - KR); C22C 38/04 (2013.01 - KR); C22C 38/06 (2013.01 - KR); C22C 38/20 (2013.01 - EP KR US); C22C 38/42 (2013.01 - KR); C22C 38/44 (2013.01 - KR); C22C 38/46 (2013.01 - KR); C22C 38/50 (2013.01 - KR)
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)
US 2005076975 A1 20050414; AT E541060 T1 20120115; BR PI0415340 A 20061205; BR PI0415340 B1 20121211; CA 2540000 A1 20050421; CA 2540000 C 20120515; EP 1678335 A1 20060712; EP 1678335 B1 20120111; JP 2007508452 A 20070405; KR 101178954 B1 20120831; KR 20060130551 A 20061219; WO 2005035800 A1 20050421
DOCDB simple family (application)
US 95760504 A 20041005; AT 04769605 T 20041011; BR PI0415340 A 20041011; CA 2540000 A 20041011; EP 04769605 A 20041011; IB 2004003311 W 20041011; JP 2006530753 A 20041011; KR 20067006791 A 20041011