US3655465A - Heat treatment for alloys particularly steels to be used in sour well service - Google Patents
Heat treatment for alloys particularly steels to be used in sour well service Download PDFInfo
- Publication number
- US3655465A US3655465A US805827A US3655465DA US3655465A US 3655465 A US3655465 A US 3655465A US 805827 A US805827 A US 805827A US 3655465D A US3655465D A US 3655465DA US 3655465 A US3655465 A US 3655465A
- Authority
- US
- United States
- Prior art keywords
- accordance
- percent
- temperature
- steel
- heat treatment
- 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.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 75
- 239000010959 steel Substances 0.000 title claims abstract description 75
- 238000010438 heat treatment Methods 0.000 title claims description 31
- 229910045601 alloy Inorganic materials 0.000 title description 10
- 239000000956 alloy Substances 0.000 title description 10
- 238000000034 method Methods 0.000 claims description 50
- 230000008569 process Effects 0.000 claims description 49
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 46
- 229910000734 martensite Inorganic materials 0.000 claims description 25
- 229910001566 austenite Inorganic materials 0.000 claims description 23
- 238000000354 decomposition reaction Methods 0.000 claims description 23
- 229910052759 nickel Inorganic materials 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 20
- 239000011159 matrix material Substances 0.000 claims description 17
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 16
- 229910052804 chromium Inorganic materials 0.000 claims description 16
- 239000011651 chromium Substances 0.000 claims description 16
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 15
- 229910052750 molybdenum Inorganic materials 0.000 claims description 15
- 239000011733 molybdenum Substances 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 10
- 229910052720 vanadium Inorganic materials 0.000 claims description 8
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000470 constituent Substances 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 4
- 238000005336 cracking Methods 0.000 abstract description 23
- 230000007797 corrosion Effects 0.000 abstract description 22
- 238000005260 corrosion Methods 0.000 abstract description 22
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract description 19
- 239000003129 oil well Substances 0.000 abstract description 3
- 230000035882 stress Effects 0.000 description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 10
- 229910052739 hydrogen Inorganic materials 0.000 description 10
- 239000001257 hydrogen Substances 0.000 description 10
- 238000005496 tempering Methods 0.000 description 9
- 238000011282 treatment Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- YZCKVEUIGOORGS-UHFFFAOYSA-N Hydrogen atom Chemical compound [H] YZCKVEUIGOORGS-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 235000000396 iron Nutrition 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000012956 testing procedure Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910018106 Ni—C Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000003483 aging Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/185—Hardening; Quenching with or without subsequent tempering from an intercritical temperature
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
Definitions
- the present invention contemplates subjecting a steel to a two-stage heat treatment in which the steel is first brought to a temperature within its A, and A region (often referred to herein as the intercritical temperature), cooled, and thereafter again heated but to a temperature below its A the steel again being cooled.
- a region often referred to herein as the intercritical temperature
- the first stage heat treatment can be preceded by other treatments including such conventional treatments as normalizing or austenitizing and quenching.
- a phase change takes place in which a portion of the metal structure is converted into austenite which upon cooling transforms whereby a metal matrix is formed containing a decomposition production of austenite.
- This decomposition product for example, martensite
- the microstructure upon cooling therefrom is one obtained in which the matrix is predominantly influenced by the austenite decomposition product, e.g., martensite, and it has been found, as will be illustrated herein, that in such instances the steel can be rendered susceptible to Sulfide Corrosion Cracking.
- the intercritical temperature be controlled such that not more than about 30 percent or 40 percent of the austenite decomposition product is formed upon cooling therefrom.
- the exact intercritical temperature will vary from steel to steel since, as is well known to those skilled in the art, A temperature (also A depends upon composition. However, it is merely a routine matter to determine the point at which, for example, more than about 50 percent martensite forms for any given composition.
- the intercritical temperature should be sufficiently high, i.e., above the A temperature, so as to provide a microstructure containing at least about 5 percent, and beneficially at least 10 percent, of the decomposition product upon cooling.
- a suitable period would be up to 4 hours, e.g., 15 minutes to 2 hours.
- Cooling from the A A temperature should be carried down past the temperature necessary to transform the austenite, for example, below the M, and preferably below M, temperature in the case of martensite.
- Other operations can be carried out to effect maximum transformation, e.g., cold treating as by refrigeration down to below, say- F.
- the temperature used should not exceed the A lest the first stage be simply repeated.
- the temperature should be at least 25 F. or 50 F. below A a range of 50 F. to 300 F. below A being suitable.
- a temperature of at least 100 F. below, and preferably at least 200 F. below, A should be used. Cooling can be conducted by air, oil quenching, water quenching, etc. (This also applies to cooling from the intercritical temperature.)
- the dual step heat treatment in accordance herewith contributes to higher strength levels notwithstanding the fact that the second heating is a tempering treatment in which a loss in strength and an increase in ductility would be expected.
- the increase in ductility is readily understandable since hard austenite decomposition products, such as martensite, formed upon cooling from the intercritical temperature are softened by tempering. More difficult to explain, however, is the simultaneous increase in strength. In any case, it is considered that the mechanism involves stress-strain behavior. It has been noted that in single tempering below the A temperature of such steels, a sharp yield point is observed which disappears as the temperature is raised to just above A yield strength also decreasing.
- lntercritical strengthening occurs particularly in respect of nickel-containing steels, and more particularly as to those steels which also contain at least one temper resistant element such as molybdenum, chromium, silicon, vanadium, tungsten, etc.
- the nickel content can be as high as percent although a range of from 1 to 5 or 7.5 percent is satisfactory.
- Up to 3% molybdenum, up to 4% chromium, up to 3% silicon, up to 3% vanadium, up to 1% carbon (and preferably at least 0.2% carbon) as well as other desired constituents can be present in the steels.
- Such other constituents include age hardening constituents such as copper, aluminum and titanium in the following percentages: up to 3% copper, up to 2% aluminum and up to 2% titanium.
- columbium and boron may be present in amounts up to 2% and up to 0.25%, respectively.
- a steel containing from 1 to 10% nickel and at least one or more temper resistant constituents in the following ranges is deemed suitable: 0.05 to 2% molybdenum, 0.5 to 3% chromium, 0.2 to 1% silicon, 0.1 to 1% vanadium, 0.1 to 0.5% carbon, 0.05 to 2% tungsten, the balance being essentially iron.
- a particularly satisfactory steel contains from 0.3 to 0.5% carbon, from 0.4 to 1% manganese, from 1.25 to 2.5% nickel, 0.4 to 1.25% chromium, 0.1 to 0.75% molybdenum.
- Another illustrative steel contains about 0.05 to 0.2% carbon, from 1.75 to 2.75% chromium, from 0.5 to 1.5% molybdenum.
- the nickel content can be replaced in whole or in part by an equivalent amount of manganese.
- the subject invention could be used in connection with certain stainless steels containing from about 1 l to 14 percent chromium.
- Alloy C was an open hearth heat from which 2 /8 inch O.D. tubing had been formed. Specimens were longitudinally cut therefrom for test.
- the loaded specimens were then immersed in a 5-liter flask containing an aqueous solution of 5% NaCl and 0.5% acetic acid, nitrogen being passed through the solution for about 30 minutes to purge the system of oxygen.
- the solution was then saturated with H 5 which was continuously bubbled therethrough. Prior to opening the flask for examination of the specimens, the nitrogen purge was again repeated. Inspections were carried out after the second and seventh days and every seven days thereafter (as to uncracked specimens) until a predesignated period of thirty days (total) elapsed, after which the test was discontinued. To avoid accumulation of corrosion products (which might have otherwise interfered with accuracy of the results) and to also keep the pH constant at about 3.8, the solution was changed after each inspection.
- threshold stress values were determined, i.e. threshold values at or below yield deflection. With respect to specimens which exhibited early failure, the threshold evaluation was one of reducing the percent of yield deflection to successively lower levels until a stress level was reached (2 5000 psi) at which no failure occurred within an exposure period of 30 days.
- a most desirable microstructure as contemplated herein consists of a ferritic matrix containing relatively uniformly distributed carbide particles and tempered martensite.
- cast irons may also be so treated in which case the carbon content can be as high as 4 or 5 percent together with the conventional elements commonly found in cast irons, e.g., nickel, manganese, chromium, molybdenum, vanadium, etc.
- a process for improving the resistance of steel to sulfide corrosion cracking which comprises bringing into contact with a sulfide corrosion cracking environment a steel which has been, (a) heated above its A temperature but below its A temperature to effect a phase change in which part of the metal structure transforms to austenite, the temperature being controlled such that upon cooling not more than about 50 percent of an austenite decomposition product is formed, (b) cooled such that a metal matrix is formed containing the decomposition product of austenite, (c) heated to a temperature below its A temperature, and (d) thereafter cooled to form a metal matrix containing relatively uniformly distributed carbide particles and a tempered decomposition product of austenite.
- the steel contains at least one temper-resistant constituent in the following ranges: up to 3% molybdenum, up to 4% chromium, up to 3% silicon, up to 3% vanadium and up to 3% tungsten.
- the steel contains at least one temper-resistant element in the following ranges: 0.05 to 2% molybdenum, 0.5 to 3% chromium, 0.2 to 1% silicon, 0.1 to 1% vanadium and 0.05 to 2% tungsten.
- austenite decomposition product is substantially martensite.
- microstructure obtained upon cooling from below the A temperature consists of a ferritic matrix containing relatively uniformly distributed carbide particles and tempered martensite.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Steel (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80582769A | 1969-03-10 | 1969-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3655465A true US3655465A (en) | 1972-04-11 |
Family
ID=25192612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US805827A Expired - Lifetime US3655465A (en) | 1969-03-10 | 1969-03-10 | Heat treatment for alloys particularly steels to be used in sour well service |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3655465A (enrdf_load_stackoverflow) |
| AU (1) | AU1198970A (enrdf_load_stackoverflow) |
| BE (1) | BE747141A (enrdf_load_stackoverflow) |
| DE (1) | DE2010998A1 (enrdf_load_stackoverflow) |
| ES (1) | ES377176A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2037839A5 (enrdf_load_stackoverflow) |
| NL (1) | NL7003404A (enrdf_load_stackoverflow) |
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3713905A (en) * | 1970-06-16 | 1973-01-30 | Carpenter Technology Corp | Deep air-hardened alloy steel article |
| WO1979000644A1 (en) * | 1978-02-21 | 1979-09-06 | Inland Steel Co | High strength steel and process of making |
| FR2445888A1 (fr) * | 1979-01-08 | 1980-08-01 | Republic Steel Corp | Procede de fabrication d'un tubage de puits et ce tubage |
| EP0064730A3 (en) * | 1981-05-08 | 1983-02-02 | Lone Star Steel Company | High performance tubulars for critical oil country applications and process for their preparation |
| US4410374A (en) * | 1978-06-22 | 1983-10-18 | Nippon Kokan Kabushiki Kaisha | Steel having excellent vibration attenuation performance and method of manufacturing the same |
| US6537397B1 (en) * | 1998-08-18 | 2003-03-25 | Honda Giken Kogyo Kabushiki Kaisha | Process for producing Fe-based member having high young's modulus, and Fe-based member having high young's modulus and high toughness |
| US20050087269A1 (en) * | 2003-10-22 | 2005-04-28 | Merwin Matthew J. | Method for producing line pipe |
| WO2008048307A3 (en) * | 2005-12-08 | 2008-07-03 | Noble Advanced Tech Inc | Flash tempering process and apparatus |
| US20100068549A1 (en) * | 2006-06-29 | 2010-03-18 | Tenaris Connections Ag | Seamless precision steel tubes with improved isotropic toughness at low temperature for hydraulic cylinders and process for obtaining the same |
| US20100193085A1 (en) * | 2007-04-17 | 2010-08-05 | Alfonso Izquierdo Garcia | Seamless steel pipe for use as vertical work-over sections |
| US20100294401A1 (en) * | 2007-11-19 | 2010-11-25 | Tenaris Connections Limited | High strength bainitic steel for octg applications |
| US20100319814A1 (en) * | 2009-06-17 | 2010-12-23 | Teresa Estela Perez | Bainitic steels with boron |
| US20110097235A1 (en) * | 2007-07-06 | 2011-04-28 | Gustavo Lopez Turconi | Steels for sour service environments |
| US8414715B2 (en) | 2011-02-18 | 2013-04-09 | Siderca S.A.I.C. | Method of making ultra high strength steel having good toughness |
| US8636856B2 (en) | 2011-02-18 | 2014-01-28 | Siderca S.A.I.C. | High strength steel having good toughness |
| US8821653B2 (en) | 2011-02-07 | 2014-09-02 | Dalmine S.P.A. | Heavy wall steel pipes with excellent toughness at low temperature and sulfide stress corrosion cracking resistance |
| US9187811B2 (en) | 2013-03-11 | 2015-11-17 | Tenaris Connections Limited | Low-carbon chromium steel having reduced vanadium and high corrosion resistance, and methods of manufacturing |
| US9340847B2 (en) | 2012-04-10 | 2016-05-17 | Tenaris Connections Limited | Methods of manufacturing steel tubes for drilling rods with improved mechanical properties, and rods made by the same |
| US9598746B2 (en) | 2011-02-07 | 2017-03-21 | Dalmine S.P.A. | High strength steel pipes with excellent toughness at low temperature and sulfide stress corrosion cracking resistance |
| US9644248B2 (en) | 2013-04-08 | 2017-05-09 | Dalmine S.P.A. | Heavy wall quenched and tempered seamless steel pipes and related method for manufacturing said steel pipes |
| US9657365B2 (en) | 2013-04-08 | 2017-05-23 | Dalmine S.P.A. | High strength medium wall quenched and tempered seamless steel pipes and related method for manufacturing said steel pipes |
| US20170145547A1 (en) * | 2015-11-25 | 2017-05-25 | Questek Innovations Llc | Grain boundary cohesion enhanced sulfide stress cracking (ssc)-resistant steel alloys |
| US9803256B2 (en) | 2013-03-14 | 2017-10-31 | Tenaris Coiled Tubes, Llc | High performance material for coiled tubing applications and the method of producing the same |
| US9970242B2 (en) | 2013-01-11 | 2018-05-15 | Tenaris Connections B.V. | Galling resistant drill pipe tool joint and corresponding drill pipe |
| US10844669B2 (en) | 2009-11-24 | 2020-11-24 | Tenaris Connections B.V. | Threaded joint sealed to internal and external pressures |
| US11105501B2 (en) | 2013-06-25 | 2021-08-31 | Tenaris Connections B.V. | High-chromium heat-resistant steel |
| US11124852B2 (en) | 2016-08-12 | 2021-09-21 | Tenaris Coiled Tubes, Llc | Method and system for manufacturing coiled tubing |
| US11833561B2 (en) | 2017-01-17 | 2023-12-05 | Forum Us, Inc. | Method of manufacturing a coiled tubing string |
| US11952648B2 (en) | 2011-01-25 | 2024-04-09 | Tenaris Coiled Tubes, Llc | Method of forming and heat treating coiled tubing |
| US12129533B2 (en) | 2015-04-14 | 2024-10-29 | Tenaris Connections B.V. | Ultra-fine grained steels having corrosion- fatigue resistance |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4072543A (en) * | 1977-01-24 | 1978-02-07 | Amax Inc. | Dual-phase hot-rolled steel strip |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2097878A (en) * | 1934-01-15 | 1937-11-02 | Grabe Alf Gerhard | Antifriction bearing and method of manufacturing the same |
| US2664369A (en) * | 1951-08-06 | 1953-12-29 | United States Steel Corp | Method of softening low-carbon medium-alloy steel |
| US3288657A (en) * | 1962-08-08 | 1966-11-29 | Yawata Iron & Steel Co | Special heat treating method of steels |
| US3370994A (en) * | 1965-11-29 | 1968-02-27 | United States Steel Corp | Method of softening steels |
-
1969
- 1969-03-10 US US805827A patent/US3655465A/en not_active Expired - Lifetime
-
1970
- 1970-03-02 AU AU11989/70A patent/AU1198970A/en not_active Expired
- 1970-03-05 ES ES377176A patent/ES377176A1/es not_active Expired
- 1970-03-09 DE DE19702010998 patent/DE2010998A1/de active Pending
- 1970-03-09 FR FR7008386A patent/FR2037839A5/fr not_active Expired
- 1970-03-10 NL NL7003404A patent/NL7003404A/xx unknown
- 1970-03-10 BE BE747141D patent/BE747141A/xx unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2097878A (en) * | 1934-01-15 | 1937-11-02 | Grabe Alf Gerhard | Antifriction bearing and method of manufacturing the same |
| US2664369A (en) * | 1951-08-06 | 1953-12-29 | United States Steel Corp | Method of softening low-carbon medium-alloy steel |
| US3288657A (en) * | 1962-08-08 | 1966-11-29 | Yawata Iron & Steel Co | Special heat treating method of steels |
| US3370994A (en) * | 1965-11-29 | 1968-02-27 | United States Steel Corp | Method of softening steels |
Cited By (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3713905A (en) * | 1970-06-16 | 1973-01-30 | Carpenter Technology Corp | Deep air-hardened alloy steel article |
| WO1979000644A1 (en) * | 1978-02-21 | 1979-09-06 | Inland Steel Co | High strength steel and process of making |
| US4410374A (en) * | 1978-06-22 | 1983-10-18 | Nippon Kokan Kabushiki Kaisha | Steel having excellent vibration attenuation performance and method of manufacturing the same |
| FR2445888A1 (fr) * | 1979-01-08 | 1980-08-01 | Republic Steel Corp | Procede de fabrication d'un tubage de puits et ce tubage |
| EP0064730A3 (en) * | 1981-05-08 | 1983-02-02 | Lone Star Steel Company | High performance tubulars for critical oil country applications and process for their preparation |
| US6537397B1 (en) * | 1998-08-18 | 2003-03-25 | Honda Giken Kogyo Kabushiki Kaisha | Process for producing Fe-based member having high young's modulus, and Fe-based member having high young's modulus and high toughness |
| US20050087269A1 (en) * | 2003-10-22 | 2005-04-28 | Merwin Matthew J. | Method for producing line pipe |
| WO2008048307A3 (en) * | 2005-12-08 | 2008-07-03 | Noble Advanced Tech Inc | Flash tempering process and apparatus |
| US8926771B2 (en) * | 2006-06-29 | 2015-01-06 | Tenaris Connections Limited | Seamless precision steel tubes with improved isotropic toughness at low temperature for hydraulic cylinders and process for obtaining the same |
| US20100068549A1 (en) * | 2006-06-29 | 2010-03-18 | Tenaris Connections Ag | Seamless precision steel tubes with improved isotropic toughness at low temperature for hydraulic cylinders and process for obtaining the same |
| US20100193085A1 (en) * | 2007-04-17 | 2010-08-05 | Alfonso Izquierdo Garcia | Seamless steel pipe for use as vertical work-over sections |
| US20110097235A1 (en) * | 2007-07-06 | 2011-04-28 | Gustavo Lopez Turconi | Steels for sour service environments |
| US8328958B2 (en) | 2007-07-06 | 2012-12-11 | Tenaris Connections Limited | Steels for sour service environments |
| US20100294401A1 (en) * | 2007-11-19 | 2010-11-25 | Tenaris Connections Limited | High strength bainitic steel for octg applications |
| US8328960B2 (en) | 2007-11-19 | 2012-12-11 | Tenaris Connections Limited | High strength bainitic steel for OCTG applications |
| US20100319814A1 (en) * | 2009-06-17 | 2010-12-23 | Teresa Estela Perez | Bainitic steels with boron |
| US10844669B2 (en) | 2009-11-24 | 2020-11-24 | Tenaris Connections B.V. | Threaded joint sealed to internal and external pressures |
| US11952648B2 (en) | 2011-01-25 | 2024-04-09 | Tenaris Coiled Tubes, Llc | Method of forming and heat treating coiled tubing |
| US9598746B2 (en) | 2011-02-07 | 2017-03-21 | Dalmine S.P.A. | High strength steel pipes with excellent toughness at low temperature and sulfide stress corrosion cracking resistance |
| US8821653B2 (en) | 2011-02-07 | 2014-09-02 | Dalmine S.P.A. | Heavy wall steel pipes with excellent toughness at low temperature and sulfide stress corrosion cracking resistance |
| US8636856B2 (en) | 2011-02-18 | 2014-01-28 | Siderca S.A.I.C. | High strength steel having good toughness |
| US9188252B2 (en) | 2011-02-18 | 2015-11-17 | Siderca S.A.I.C. | Ultra high strength steel having good toughness |
| US8414715B2 (en) | 2011-02-18 | 2013-04-09 | Siderca S.A.I.C. | Method of making ultra high strength steel having good toughness |
| US9222156B2 (en) | 2011-02-18 | 2015-12-29 | Siderca S.A.I.C. | High strength steel having good toughness |
| US9340847B2 (en) | 2012-04-10 | 2016-05-17 | Tenaris Connections Limited | Methods of manufacturing steel tubes for drilling rods with improved mechanical properties, and rods made by the same |
| US9970242B2 (en) | 2013-01-11 | 2018-05-15 | Tenaris Connections B.V. | Galling resistant drill pipe tool joint and corresponding drill pipe |
| US9187811B2 (en) | 2013-03-11 | 2015-11-17 | Tenaris Connections Limited | Low-carbon chromium steel having reduced vanadium and high corrosion resistance, and methods of manufacturing |
| US11377704B2 (en) | 2013-03-14 | 2022-07-05 | Tenaris Coiled Tubes, Llc | High performance material for coiled tubing applications and the method of producing the same |
| US9803256B2 (en) | 2013-03-14 | 2017-10-31 | Tenaris Coiled Tubes, Llc | High performance material for coiled tubing applications and the method of producing the same |
| US10378075B2 (en) | 2013-03-14 | 2019-08-13 | Tenaris Coiled Tubes, Llc | High performance material for coiled tubing applications and the method of producing the same |
| US10378074B2 (en) | 2013-03-14 | 2019-08-13 | Tenaris Coiled Tubes, Llc | High performance material for coiled tubing applications and the method of producing the same |
| US9657365B2 (en) | 2013-04-08 | 2017-05-23 | Dalmine S.P.A. | High strength medium wall quenched and tempered seamless steel pipes and related method for manufacturing said steel pipes |
| US9644248B2 (en) | 2013-04-08 | 2017-05-09 | Dalmine S.P.A. | Heavy wall quenched and tempered seamless steel pipes and related method for manufacturing said steel pipes |
| US11105501B2 (en) | 2013-06-25 | 2021-08-31 | Tenaris Connections B.V. | High-chromium heat-resistant steel |
| US12129533B2 (en) | 2015-04-14 | 2024-10-29 | Tenaris Connections B.V. | Ultra-fine grained steels having corrosion- fatigue resistance |
| US20170145547A1 (en) * | 2015-11-25 | 2017-05-25 | Questek Innovations Llc | Grain boundary cohesion enhanced sulfide stress cracking (ssc)-resistant steel alloys |
| US11124852B2 (en) | 2016-08-12 | 2021-09-21 | Tenaris Coiled Tubes, Llc | Method and system for manufacturing coiled tubing |
| US11833561B2 (en) | 2017-01-17 | 2023-12-05 | Forum Us, Inc. | Method of manufacturing a coiled tubing string |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7003404A (enrdf_load_stackoverflow) | 1970-09-14 |
| ES377176A1 (es) | 1972-06-01 |
| BE747141A (fr) | 1970-09-10 |
| DE2010998A1 (de) | 1970-09-24 |
| AU1198970A (en) | 1971-09-09 |
| FR2037839A5 (enrdf_load_stackoverflow) | 1970-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3655465A (en) | Heat treatment for alloys particularly steels to be used in sour well service | |
| Speidel | Stress corrosion cracking of stainless steels in NaCl solutions | |
| US5286310A (en) | Low nickel, copper containing chromium-nickel-manganese-copper-nitrogen austenitic stainless steel | |
| JP4327247B2 (ja) | 鋼鉄ワイヤの製造方法、ホース補強用の鋼鉄ワイヤ及びそれを用いたホース | |
| EA000424B1 (ru) | Мартенситная нержавеющая сталь с высокой механической прочностью и коррозионной стойкостью, способ изготовления изделий из этой стали и изделие, изготовленное этим способом | |
| US3847678A (en) | Helical steel spring and method | |
| CA2416950C (en) | Inert material with increased hardness for thermally stressed parts | |
| US2770563A (en) | Low alloy steel tubing | |
| US4002510A (en) | Stainless steel immune to stress-corrosion cracking | |
| JP2861024B2 (ja) | 油井用マルテンサイト系ステンレス鋼材とその製造方法 | |
| US3342590A (en) | Precipitation hardenable stainless steel | |
| JP2867295B2 (ja) | マルテンサイト系ステンレス鋼ラインパイプの製造方法 | |
| Blair | Cast stainless steels | |
| US5858128A (en) | High chromium martensitic steel pipe having excellent pitting resistance and method of manufacturing | |
| US4203782A (en) | Steel having a uni-directional lamellar martensite structure in an austenite matrix | |
| JPH09143626A (ja) | 耐食性マルエージング合金 | |
| US6406572B1 (en) | Process for the production of a workpiece from a chromium alloy, and its use | |
| EP0155011B1 (en) | High-strength alloy for industrial vessels | |
| JPH03120337A (ja) | マルテンサイト系ステンレス鋼と製造方法 | |
| JP2814528B2 (ja) | 油井用マルテンサイト系ステンレス鋼材とその製造方法 | |
| US3649376A (en) | Process for preparing and treating austenitic stainless steels | |
| JPH0375336A (ja) | 耐食性の優れたマルテンサイト系ステンレス鋼およびその製造方法 | |
| French et al. | Available data on the properties of irons and steels at various temperatures | |
| QIU et al. | Enhanced low-temperature tensile properties of Fe-14Cr-(4∼ 9) Ni weld metal by retained austenite | |
| JPH03173718A (ja) | 耐硫化水素応力腐食割れ特性と低温靭性に優れた極厚肉低溶接硬化性高張力鋼の製造方法 |