EP0092397A1 - Alliage nickel-chrome-molybdène - Google Patents
Alliage nickel-chrome-molybdène Download PDFInfo
- Publication number
- EP0092397A1 EP0092397A1 EP83302135A EP83302135A EP0092397A1 EP 0092397 A1 EP0092397 A1 EP 0092397A1 EP 83302135 A EP83302135 A EP 83302135A EP 83302135 A EP83302135 A EP 83302135A EP 0092397 A1 EP0092397 A1 EP 0092397A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chromium
- alloy
- molybdenum
- alloys
- iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 229910001182 Mo alloy Inorganic materials 0.000 title abstract description 4
- OGSYQYXYGXIQFH-UHFFFAOYSA-N chromium molybdenum nickel Chemical compound [Cr].[Ni].[Mo] OGSYQYXYGXIQFH-UHFFFAOYSA-N 0.000 title abstract description 3
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 63
- 239000000956 alloy Substances 0.000 claims abstract description 63
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052750 molybdenum Inorganic materials 0.000 claims description 28
- 239000011651 chromium Substances 0.000 claims description 27
- 229910052804 chromium Inorganic materials 0.000 claims description 26
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 25
- 239000011733 molybdenum Substances 0.000 claims description 25
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 23
- 229910052742 iron Inorganic materials 0.000 claims description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 238000005482 strain hardening Methods 0.000 claims description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 239000011572 manganese Substances 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- 239000010955 niobium Substances 0.000 claims description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 4
- 238000000137 annealing Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000007797 corrosion Effects 0.000 description 14
- 238000005260 corrosion Methods 0.000 description 14
- 230000035882 stress Effects 0.000 description 14
- 238000005336 cracking Methods 0.000 description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 5
- 230000032683 aging Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 229960000583 acetic acid Drugs 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001122 Mischmetal Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229940075397 calomel Drugs 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical compound Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 238000000840 electrochemical analysis Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
Definitions
- the present invention relates to nickel-chromium-molybdenum alloys of high yield strength and resistance to corrosion in environments such as are found in sour gas wells.
- sour gas wells typically contain hydrogen sulphide, carbon dioxide, methane and brine, often at operating temperatures of 250 to 300°C.
- HSSC hydrogen sulphide stress cracking
- CSCC chloride stress corrosion cracking
- Well aging may also be a cause of early failure.
- Hydrogen sulphide stress cracking appears to result from the presence of both H 2 S and brine causing hydrogen evolution. This permeates the tubing causing "hydrogen embrittlement" which with tensile stress leads to cracking.
- the susceptibility of low alloy steels prevents their prolonged use in sour gas wells. Chloride stress corrosion cracking, from release of chloride ions is particularly troublesome at higher operating temperatures, and the susceptibility of stainless steels to this form of corrosion prevents their use in sour gas wells. Pitting corrosion is also caused by chloride attack, and is a particular problem for thin wall tubing. General corrosion causes weight loss of metal affecting the ability of the material to sustain load and its pressure bearing capabilities. Well aging is the time-dependent degradation in properties during prolonged exposure at elevated temperatures, of 250° or even 300°C found in some wells. This affects the ability of the alloy to resist growth propagation.
- An alloy for use in sour gas wells particularly those greater than 15,000 feet deep must offer both resistance to the hostile corrosive environment and high yield strength, to allow the use of thin wall tubing allowing high volume gas flow but resisting tensile failure under high axial loading.
- the alloys must be cold workable to generate the strength required necessitating a high level of work hardening. Also required is an acceptable level of "residual ductility", the ductility remaining after cold working, since considerable distortion is likely to be encountered in sour gas well tubing in service.
- the alloy also needs hot workability and the ability to be fabricated.
- the present invention is based on the discovery that certain Ni-Cr-Mo alloys can be produced satisfying these requirements even at applied stresses in excess of 1000 MN/m 2 .
- a wrought alloy having a yield strength in excess of 1000 MN/ M 2 and resistance to corrosive environments such as those found in a sour gas well having the composition by weight 15 to 30% chromium, 5 to 15% molybdenum the total content of chromium and molybdenum being in the range 29 to 40%, 5 to 15% iron the total content of iron, chromium and molybdenum being not in excess of 46%, carbon up to 0.06%, up to 1% aluminium and/or titanium, up to 1% silicon, up to 0.5% niobium, less than 0.3% manganese balance nickel apart from incidental elements and impurities.
- Such alloys exhibit a high degree of resistance to hydrogen sulphide stress cracking, chloride stress corrosion cracking, pitting and general corrosion, and have good ductility and resistance to "well aging".
- phosphorous and sulphur levels be kept as low as possible. Whilst manganese may be present up to 0.3%, it is preferably kept below 0.2%. Incidental elements may include copper which is not required and may be kept to low levels, and cobalt up to about 25%. Boron up to 0.1% and mischmetal up to 0.1% may provide useful refining additions. Carbon, while virtually unavoidably present, affects ductility. Magnesium and zirconium can be used for grain refinement. Tungsten does not offer any particular advantage, given its density and added cost. The carbon content is preferably held to not more than 0.03%, and amounts up to about 0.1% of magnesium and/or zirconium may be present.
- the chromium level does not fall below 20% to provide sufficient pitting resistance and HSSC and CSCC resistance.
- the chromium need not exceed 30%. When chromium levels of below 15% are used it is necessary to provide high levels of molybdenum and this can affect working characteristics.
- Molybdenum markedly contributes to corrosion resistance but imparts a large degree of work hardening. Levels as low as 5% may be used in comparatively less severe conditions of temperature and pressure but levels of 7% or more are preferred.
- the content of chromium plus molybdenum should preferably be above 32% but preferably does not exceed 40%. This is because alloy brittleness, and other hot working problems can be caused at such levels. Also above 15% of molybdenum, the ductility of the alloy may be affected. The preferred content of molybdenum is 7 to 12%.
- the content of chromium and molybdenum also affects residual ductility. It has found to be desirable that the quantity % Cr - 2 (% Mo) is from 2 to 12 provides for optimum residual ductility.
- Iron is present in alloys of the present invention at levels of from 5 to 15%, more preferably 8 to 12%. Excessive iron may produce unwanted morphological phases, such as sigma, and to prevent this the sum of molybdenum, chromium and iron is preferablyibelow 46%.
- Aluminium and titanium may be used as refining additions, and they contribute to workability.
- alloys for use in the present invention contain 0.05 to 0.5% of either or both of these elements.
- the presence of silicon may not be deleterious, but it is preferably kept below 0.5% to avoid affecting the hydrogen stress cracking resistance.
- the preferred wrought alloy of the present invention having a yield strength in excess of 1000 MN/ M 2 and intended for use in corrosive environments such as sour gas wells, consists of, by weight, 20 to 30% chromium,7 to 12% molybdenum, the sum of chromium plus molybdenum being in the range 29 to 40%, the quantity of % chromium less twice the % molybdenum being in the range 2 to 12%, from 5 to 15% iron, the sum of chromium, molybdenum and iron not exceeding 46%, from 0.05 to 0.5% of either or both of aluminium and titanium, up to 0.06% carbon, up to 0.5% niobium, up to 0.5% silicon, up to 0.2% manganese the balance apart from impurities being nickel.
- Alloys for use in the present invention are solution annealed at temperatures in the range 1066 to 1177°C, preferably 1093 to 1177°C for 0.5 to 5 hours, normally 1 to 2 hours.
- the alloys are cooled, for example by air cooling and are cold worked in the range 40 to 50% or more to provide yield strengths of the order of 1200 MN/ M 2 or more. Since only low levels of aluminium and titanium are present the alloys are not age-hardenable, so that aging treatments are not required.
- a range of alloys both inside and outside the invention were produced in approximately 45 kg heats by induction melting high purity charge materials, hot rolling the ingots to plate stock approximately 15 mm thick, and solution annealing followed by cold rolling to develop strength. The amount of cold rolling was varied. Test specimens were machined from the cold rolled material normally in the transverse direction. Tables I sets out the chemical composition of the alloys and includes alloys in which major element concentrations were varied, and alloys based nominally on Ni-25% Cr - 10% Mo in which minor element concentrations were varied.
- alloys 1 to 6 and 8 to 23 are alloys of the present invention and alloys A to X are outside the present invention. Alloys 8 to 23 are the preferred alloys of the invention.
- H 2 S stress corrosion tests NACE Spec. Standard TM-01-77
- H 2 S stress corrosion tests NACE Spec. Standard TM-01-77
- 5g glacial acetic acid and 50g NaCl 945g H 2 0 saturated with H 2 S gas. This allows sensitivity to H 2 S gas at ambient temperatures to be tested.
- the specimens were 3-point bent beam samples loaded in small electrically insulated test fixtures stressed to various percentage of the yield strength, usually 100%.
- the cold rolled materials were given "well.aging" heat treatments at 260°-315°C for various times before testing.
- the samples were oriented in the transverse direction from the cold worked plate. (Note: extra specimens were first deformed to determine the load-deflection characteristics.)
- Specimens for test were then loaded in the fixtures to predetermined deflection corresponding to desired stress levels.
- Some U-bend specimen were also tested. All samples were attached to small pieces of steel to provide galvanic coupling.
- Alloy D is such an alloy.
- Alloy 1 is a marginal composition.
- % Cr - 2 is in the range 2 to 12.
- Alloy 1 would not be recommended for sour gas well applications. Alloys 11, 12 and 13 were excellent.
- the alloys described hereinbefore can be used in other corrosive environments in which high strength is required.
- Such applications include, intermediate gas wells, aqueous and marine environments, scrubbers, chemical plant equipment (such as tubing and piping), aircraft and aerospace and applications.
- Mill product forms include forgings, bar plate, extrusions and sheet. Among other structural shapes might be mentioned fasteners, valves, pins, shafts and rotors.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Saccharide Compounds (AREA)
- Medicines Containing Plant Substances (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Heat Treatment Of Steel (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US37028082A | 1982-04-20 | 1982-04-20 | |
| US370280 | 1982-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0092397A1 true EP0092397A1 (fr) | 1983-10-26 |
Family
ID=23458971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP83302135A Ceased EP0092397A1 (fr) | 1982-04-20 | 1983-04-15 | Alliage nickel-chrome-molybdène |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0092397A1 (fr) |
| JP (1) | JPS58221252A (fr) |
| KR (1) | KR840004458A (fr) |
| ES (1) | ES8502167A1 (fr) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5556594A (en) * | 1986-05-30 | 1996-09-17 | Crs Holdings, Inc. | Corrosion resistant age hardenable nickel-base alloy |
| DE19703035A1 (de) * | 1997-01-29 | 1998-07-30 | Krupp Vdm Gmbh | Austenitische Nickel-Chrom-Molybdän-Silizium-Legierung mit hoher Korrosionsbeständigkeit gegen heiße chlorhaltige Gase und Chloride |
| WO2001000893A1 (fr) * | 1999-06-25 | 2001-01-04 | Krupp Vdm Gmbh | Alliage ni-cr-mo-fe austenitique |
| US6280540B1 (en) * | 1994-07-22 | 2001-08-28 | Haynes International, Inc. | Copper-containing Ni-Cr-Mo alloys |
| US6740291B2 (en) * | 2002-05-15 | 2004-05-25 | Haynes International, Inc. | Ni-Cr-Mo alloys resistant to wet process phosphoric acid and chloride-induced localized attack |
| WO2008100356A1 (fr) * | 2007-02-16 | 2008-08-21 | Baker Hughes Incorporated | Matériau à résistance élevée formé par fluotournage pour des systèmes de sécurité et d'autres applications haute pression |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6199652A (ja) * | 1984-10-22 | 1986-05-17 | Kubota Ltd | 通電ロ−ル |
| JPS6199653A (ja) * | 1984-10-22 | 1986-05-17 | Kubota Ltd | 通電ロ−ル |
| JPS61163228A (ja) * | 1985-01-16 | 1986-07-23 | Ngk Spark Plug Co Ltd | スパ−クプラグの電極材料 |
| JPS61179837A (ja) * | 1985-02-05 | 1986-08-12 | Toshiba Corp | 点火栓電極用ニツケル基合金 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1309587A (fr) * | 1961-12-22 | 1962-11-16 | Basf Ag | Alliage de nickel-chrome-molybdène d'une haute résistance à la corrosion, notamment à la corrosion intercristalline |
| FR1536741A (fr) * | 1967-09-13 | 1968-08-16 | Union Carbide Corp | Alliages à base de nickel |
| FR2416956A1 (fr) * | 1978-02-09 | 1979-09-07 | Cabot Corp | Alliage a base de nickel, chrome, molybdene, resistant a l a corrosion et a la fissuration pour produits tubulaires |
| DE2929811A1 (de) * | 1978-07-24 | 1980-02-28 | Hitachi Ltd | Kernreaktor-stellstab |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5811737A (ja) * | 1981-07-13 | 1983-01-22 | Sumitomo Metal Ind Ltd | 耐応力腐食割れ性に優れた高強度油井管の製造法 |
| ZA832119B (en) * | 1982-04-05 | 1984-04-25 | Teledyne Ind | Corrosion resistant nickel base alloy |
-
1983
- 1983-04-15 EP EP83302135A patent/EP0092397A1/fr not_active Ceased
- 1983-04-19 ES ES521616A patent/ES8502167A1/es not_active Expired
- 1983-04-20 KR KR1019830001666A patent/KR840004458A/ko not_active Withdrawn
- 1983-04-20 JP JP58069860A patent/JPS58221252A/ja active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1309587A (fr) * | 1961-12-22 | 1962-11-16 | Basf Ag | Alliage de nickel-chrome-molybdène d'une haute résistance à la corrosion, notamment à la corrosion intercristalline |
| FR1536741A (fr) * | 1967-09-13 | 1968-08-16 | Union Carbide Corp | Alliages à base de nickel |
| FR2416956A1 (fr) * | 1978-02-09 | 1979-09-07 | Cabot Corp | Alliage a base de nickel, chrome, molybdene, resistant a l a corrosion et a la fissuration pour produits tubulaires |
| DE2929811A1 (de) * | 1978-07-24 | 1980-02-28 | Hitachi Ltd | Kernreaktor-stellstab |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5556594A (en) * | 1986-05-30 | 1996-09-17 | Crs Holdings, Inc. | Corrosion resistant age hardenable nickel-base alloy |
| US6280540B1 (en) * | 1994-07-22 | 2001-08-28 | Haynes International, Inc. | Copper-containing Ni-Cr-Mo alloys |
| DE19703035A1 (de) * | 1997-01-29 | 1998-07-30 | Krupp Vdm Gmbh | Austenitische Nickel-Chrom-Molybdän-Silizium-Legierung mit hoher Korrosionsbeständigkeit gegen heiße chlorhaltige Gase und Chloride |
| DE19703035C2 (de) * | 1997-01-29 | 2000-12-07 | Krupp Vdm Gmbh | Verwendung einer austenitischen Nickel-Chrom-Molybdän-Silizium-Legierung mit hoher Korrosionsbeständigkeit gegen heiße chlorhaltige Gase und Chloride |
| WO2001000893A1 (fr) * | 1999-06-25 | 2001-01-04 | Krupp Vdm Gmbh | Alliage ni-cr-mo-fe austenitique |
| US6740291B2 (en) * | 2002-05-15 | 2004-05-25 | Haynes International, Inc. | Ni-Cr-Mo alloys resistant to wet process phosphoric acid and chloride-induced localized attack |
| WO2008100356A1 (fr) * | 2007-02-16 | 2008-08-21 | Baker Hughes Incorporated | Matériau à résistance élevée formé par fluotournage pour des systèmes de sécurité et d'autres applications haute pression |
Also Published As
| Publication number | Publication date |
|---|---|
| ES521616A0 (es) | 1984-12-16 |
| KR840004458A (ko) | 1984-10-15 |
| JPS58221252A (ja) | 1983-12-22 |
| ES8502167A1 (es) | 1984-12-16 |
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