C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 38/44 (2006.01) C21D 8/10 (2006.01) C22C 38/02 (2006.01) C22C 38/04 (2006.01) F16L 1/12 (2006.01) F16L 9/02 (2006.01) F16L 9/19 (2006.01) F16L 11/14 (2006.01) F16L 11/22 (2006.01)
Patent
CA 2377398
The invention relates to the use of a ferrite-austenitic alloy with a composition defined to C rated to 0.05 %, Si rated to 0.8 %, Mn 0.30-1.5 %, Cr 28.0-30.0 %, Ni 5.80-7.40 %, Mo 2.00-2.50 %, N 0.30-0.40 %, Cu rated to 1.0 %, W rated to 2.0 %, S rated to 0.010 %, 30-70 % ferrite and the balance austenite for tubes filled with hydraulic fluid, as transport tubes for solutions for chemical injection, or another use in the application umbilicals.
L'invention concerne l'utilisation d'un alliage ferrite-austénitique présentant la composition suivante: 0,05 % de C, 0,8 % de Si, 0,30 à 1,5 % de Mn, 28,0 à 30,0 % de Cr, 5,8 à 7,40 % de Ni, 2,00 à 2,50 % de Mo, 0,30 à 0,40 % de N, 1,0 % de Cu, 2,0 % de W, 0,010 % de S, 30 à 70 % de ferrite et le reste d'austénite pour des tubes remplis de fluide hydraulique. Ces tubes servent de tubes de transport pour l'injection chimique ou une autre utilisation dans des liaisons ombilicales.
Gowling Lafleur Henderson Llp
Sandvik Ab
Sandvik Intellectual Property Ab
LandOfFree
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