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1. WO2006097112 - USE OF A STEEL COMPOSITION FOR THE PRODUCTION OF AN ARMOURING LAYER OF A FLEXIBLE PIPE AND THE FLEXIBLE PIPE

Publication Number WO/2006/097112
Publication Date 21.09.2006
International Application No. PCT/DK2006/050007
International Filing Date 14.03.2006
IPC
C22C 38/00 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
C22C 38/38 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
38with more than 1.5% by weight of manganese
C22C 38/58 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
40with nickel
58with more than 1.5% by weight of manganese
C22C 38/22 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
22with molybdenum or tungsten
C22C 38/42 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
40with nickel
42with copper
C22C 38/44 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
40with nickel
44with molybdenum or tungsten
CPC
B32B 1/08
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
1Layered products having a general shape other than plane
08Tubular products
B32B 15/043
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
15Layered products comprising ; a layer of; metal
04comprising metal as the main or only constituent of a layer, ; which is next to another layer of the same or of a different material
043of metal
B32B 15/08
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
15Layered products comprising ; a layer of; metal
04comprising metal as the main or only constituent of a layer, ; which is next to another layer of the same or of a different material
08of synthetic resin
B32B 15/18
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
15Layered products comprising ; a layer of; metal
18comprising iron or steel
B32B 2307/714
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2307Properties of the layers or laminate
70Other properties
714Inert, i.e. inert to chemical degradation, corrosion
B32B 2307/752
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2307Properties of the layers or laminate
70Other properties
752Corrosion inhibitor
Applicants
  • NKT FLEXIBLES I/S [DK]/[DK] (AllExceptUS)
  • GUDME, Jonas [DK]/[DK] (UsOnly)
Inventors
  • GUDME, Jonas
Agents
  • HEGNER, Anette
Priority Data
PA 2005 0039718.03.2005DK
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) USE OF A STEEL COMPOSITION FOR THE PRODUCTION OF AN ARMOURING LAYER OF A FLEXIBLE PIPE AND THE FLEXIBLE PIPE
(FR) UTILISATION D'UNE COMPOSITION A BASE D'ACIER POUR LA PRODUCTION D'UNE COUCHE D'ARMATURE D'UNE CONDUITE FLEXIBLE ET CONDUITE FLEXIBLE
Abstract
(EN)
The invention relates to a use of a duplex steel for the production of an armouring layer of a flexible pipe comprising at least one unbonded 5 armouring layer and at least one unbonded sealing layer wherein the duplex steel comprises in weight percent 0.01-0.05 % by weight of carbon (C) at least 0.15 % by weight of nitrogen (N) 20.0-23.0 % by weight of chromium (Cr) 10 up to 3.0 % by weight of nickel (Ni) up to 1.0 % by weight of molybdenum (Mo) 3-6 % by weight of manganese (Mn) Up to 1.0 % by weight of copper (Cu) incidental purities and 15 balance being iron (Fe). The invention also relates to a flexible pipe comprising at least one unbonded armouring layer and at least one unbonded sealing layer wherein at least one armouring layer of the flexible pipe is of this duplex steel.
(FR)
La présente invention a trait à l'utilisation d'un acier duplex pour la production d'une couche d'armature pour une conduite flexible comportant au moins une couche d'armure non collée et au moins une couche d'étanchéité non collée dans lequel l'acier duplex comprend en pourcentage pondéral 0, 01-0,05 % en poids de carbone (C), au moins 0,15 % en poids d'azote (N), 20,0 -23,0 % en poids de chrome (Cr), jusqu'à 3,0 % en poids de nickel (Ni), jusqu'à 1,0 % en poids de molybdène (Mo), 3-6 % en poids de manganèse (Mn), jusqu'à 1,0 % en poids de cuivre (Cu) et des impuretés inévitables, le reste étant du fer (Fe). L'invention a également trait à une conduite flexible comportant au moins une couche d'armure non collée et au moins une couche d'étanchéité non collée dans lequel au moins une couche de la conduite flexible est réalisée avec cet acier duplex.
Also published as
NO20075307
Latest bibliographic data on file with the International Bureau