WO2009106033A1 - High-strength, low-alloy steel for seamless pipes with outstanding weldability and corrosion resistance - Google Patents
High-strength, low-alloy steel for seamless pipes with outstanding weldability and corrosion resistance Download PDFInfo
- Publication number
- WO2009106033A1 WO2009106033A1 PCT/DE2009/000158 DE2009000158W WO2009106033A1 WO 2009106033 A1 WO2009106033 A1 WO 2009106033A1 DE 2009000158 W DE2009000158 W DE 2009000158W WO 2009106033 A1 WO2009106033 A1 WO 2009106033A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steel
- max
- strength
- mpa
- low
- Prior art date
Links
- 230000007797 corrosion Effects 0.000 title claims abstract description 10
- 238000005260 corrosion Methods 0.000 title claims abstract description 10
- 229910000851 Alloy steel Inorganic materials 0.000 title abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 238000005336 cracking Methods 0.000 claims abstract description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 10
- 229910052720 vanadium Inorganic materials 0.000 claims description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims description 9
- 229910052758 niobium Inorganic materials 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910000922 High-strength low-alloy steel Inorganic materials 0.000 claims description 3
- 238000005098 hot rolling Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 16
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 238000005275 alloying Methods 0.000 description 9
- 239000010949 copper Substances 0.000 description 9
- 239000010936 titanium Substances 0.000 description 8
- 239000010955 niobium Substances 0.000 description 7
- 229910052719 titanium Inorganic materials 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000008186 active pharmaceutical agent Substances 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910001563 bainite Inorganic materials 0.000 description 1
- -1 chromium carbides Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
Definitions
- the invention relates to a high-strength low-alloy steel for seamless steel pipes with excellent weldability and resistance to stress corrosion cracking according to claim 1.
- Seamless tubes made of high-strength steels are z. B. used for pipes for the transport of oil or gas, which are laid both onshore and offshore.
- Alloys commonly used for seamless conduits are defined for steels up to 80 ksi (X80) in standards such as API 5L, DNV-OS-F101 and EN 10208. For high strength grades above 80 ksi, these standards do not specify the limits for the alloying elements. When developing higher-strength grades, it must be borne in mind that the steel tubes produced from them are weldable and must possess good strength and toughness properties. While to date standard for steel pipes good to X80 (R min p02 551 MPa, R m min 620 MPa according to API 5L were used, there is now an increasing need for
- the strength-increasing mechanism which at the same time leads to an increase in toughness, is known to be the reduction of the grain size. This can be achieved, inter alia, by alloying nickel and molybdenum and the associated reduction in the transformation temperature
- molybdenum improves tempering resistance at higher tempering temperatures and throughput.
- nickel significantly deteriorates the surface quality of the hot-rolled tubes above a certain alloy content
- titanium, niobium and vanadium are used. Titanium precipitates as high-coarse titanium nitride at high temperatures. Niobium forms at lower temperatures Niobkarbonit ⁇ d precipitates With further decreasing temperature, vanadium additionally accumulates in carbonitrides , ie it is to be expected with the excretion of VC-Te ⁇ lchen
- a high strength, low alloy steel for hot rolled seamless steel tubing that meets the requirements of an X100 API 5L for welded tubes is from WO 2007/017161 A1 known
- This known steel alloy has an alloy concept with C 0 03 - 0.13%, Mn 0.90 - 1, 80%, Si ⁇ 0.40%, P ⁇ 0.020%, S ⁇ 0.005%, Ni 0 , 10 - 1, 00%, Cr 0,20 - 1, 20%, Mo 0,15 - 0,80%, Ca ⁇ 0,040%, V ⁇ 0,10%, Nb ⁇ 0,040%, Ti ⁇ 0,020%, N ⁇ 0.011% and a mixture consisting of bainite and martensite
- the N ⁇ contents are up to 1% in the known steel very high, which can in the formation of adhesive scale on the surface during hot rolling of the tubes, eg hot pilots, Rohrkontivon, etc, impact, and the surface quality of the pipes strong and would require extensive surface finishing
- the object of the invention is to provide a low-cost low-alloy steel for the production of high-strength weldable seamless steel tubes, which satisfies the stated requirements for yield strength, tensile strength and impact energy and also ensures good general weldability and sufficient corrosion resistance in sour gas use and after hot rolling has a perfect surface
- This object is achieved with the features of claim 1.
- Remaining iron with impurities caused by melting with optional addition of Ti and the proviso that the sum of the contents of Ti + Nb + V is ⁇ 0.04 to ⁇ 0.15% and the ratio Cu / Ni is a value of ⁇ 1 having.
- the steel alloy according to the invention is based on the development of the pipe steels according to API 5L, ISO 3183, DNV-OS-F101 and EN 10208.
- copper In addition to nickel, copper also has a positive effect on acid gas resistance. Copper alloyed alone adversely affects hot workability and damages the material Grain boundaries. By alloying Ni with an additionally adjusted with respect to sour gas resistance Cu / Ni ratio (Cu / Ni ⁇ 1), this is compensated.
- the Ni content is max. 0.60% low enough to produce a sufficiently good surface quality for the tube manufacturing processes mainly used for this steel grade.
- the seamless steel tubes produced from an operating melt with the steel alloy of the invention listed below have excellent strength and toughness properties.
- the values are the mean values of three tensile specimens each, or three notched-bar impact specimens.
- the samples were taken as longitudinal samples from heat-treated tubes made in-house.
- OD outer diameter
- WD wall thickness
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09716073.3A EP2245201B1 (en) | 2008-02-28 | 2009-02-02 | High-strength, low-alloy steel for seamless pipes with outstanding weldability and corrosion resistance |
MX2010009446A MX2010009446A (en) | 2008-02-28 | 2009-02-02 | High-strength, low-alloy steel for seamless pipes with outstanding weldability and corrosion resistance. |
US12/920,218 US20110259478A1 (en) | 2008-02-28 | 2009-02-02 | High-strength, low-alloy steel for seamless pipes with outstanding weldability and corrosion resistance |
JP2010547943A JP5715826B2 (en) | 2008-02-28 | 2009-02-02 | High strength low alloy steel for seamless pipes with outstanding weldability and corrosion resistance |
BRPI0908484A BRPI0908484A8 (en) | 2008-02-28 | 2009-02-02 | LOW ALLOY AND HIGH STRENGTH STEEL FOR SEAMLESS PIPES WITH OUTSTANDING SOLDERABILITY AND CORROSION RESISTANCE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008011856.7 | 2008-02-28 | ||
DE102008011856A DE102008011856A1 (en) | 2008-02-28 | 2008-02-28 | High strength low alloy steel for seamless tubes with excellent weldability and corrosion resistance |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009106033A1 true WO2009106033A1 (en) | 2009-09-03 |
Family
ID=40637863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2009/000158 WO2009106033A1 (en) | 2008-02-28 | 2009-02-02 | High-strength, low-alloy steel for seamless pipes with outstanding weldability and corrosion resistance |
Country Status (8)
Country | Link |
---|---|
US (1) | US20110259478A1 (en) |
EP (1) | EP2245201B1 (en) |
JP (1) | JP5715826B2 (en) |
AR (1) | AR070624A1 (en) |
BR (1) | BRPI0908484A8 (en) |
DE (1) | DE102008011856A1 (en) |
MX (1) | MX2010009446A (en) |
WO (1) | WO2009106033A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102154593A (en) * | 2011-05-26 | 2011-08-17 | 天津钢管集团股份有限公司 | X80 steel grade anti-corrosion low-temperature seamless line pipe |
CN102900897A (en) * | 2011-07-28 | 2013-01-30 | 锐迈管业有限公司 | Concrete pump truck elbow and machining technology thereof |
CN105543690A (en) * | 2016-01-19 | 2016-05-04 | 天津钢管集团股份有限公司 | Submarine seamless line pipe above 415SPDF steel grade having large strain resistance |
CN105543705A (en) * | 2016-01-19 | 2016-05-04 | 天津钢管集团股份有限公司 | Manufacturing method for large-strain-resistant corrosion-resistant seamless line pipe for marine environment R-Lay laying |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BRPI0807605A2 (en) | 2007-02-27 | 2014-05-13 | Exxonmobil Upstream Res Compony | METHODS FOR CONSTRUCTING A PIPE FOR TRANSPORTING HYDROCARBONS AND FOR FORMING A WELD JOINT BETWEEN TUBULAR SECTIONS, TUBE SECTION, AND PIPE FOR TRANSPORTING HYDROCARBONS |
CN104404368A (en) * | 2014-10-22 | 2015-03-11 | 苏州莱特复合材料有限公司 | Corrosion-resistant stainless steel alloy and preparation method thereof |
BR102016001063B1 (en) * | 2016-01-18 | 2021-06-08 | Amsted Maxion Fundição E Equipamentos Ferroviários S/A | alloy steel for railway components, and process for obtaining a steel alloy for railway components |
ES2846779T3 (en) | 2016-07-13 | 2021-07-29 | Vallourec Deutschland Gmbh | Micro-alloyed steel and method of producing such steel |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01139740A (en) * | 1987-11-27 | 1989-06-01 | Kawasaki Steel Corp | Corrosion-resisting duplex tube |
JPH06172855A (en) * | 1992-12-10 | 1994-06-21 | Nippon Steel Corp | Low Yield Ratio High Toughness Seamless Steel Pipe Manufacturing Method |
WO2004031420A1 (en) * | 2002-10-01 | 2004-04-15 | Sumitomo Metal Industries, Ltd. | High strength seamless steel pipe excellent in hydrogen-induced cracking resistance and its production method |
EP1681364A1 (en) * | 2003-10-20 | 2006-07-19 | JFE Steel Corporation | Expansible seamless steel pipe for use in oil well and method for production thereof |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56166324A (en) * | 1980-05-23 | 1981-12-21 | Kawasaki Steel Corp | Production of high-strength seamless steel pipe of good weldability for middle temperature region |
JPS5837120A (en) * | 1981-08-28 | 1983-03-04 | Kawasaki Steel Corp | Production of thick walled steel pipe for pipeline having excellent characteristic for stopping propagation of brittle fracture |
JPS62151545A (en) * | 1985-12-25 | 1987-07-06 | Kawasaki Steel Corp | Thick-walled, high-strength, low-pcm bended steel pipe and its production |
DE3832014C2 (en) * | 1988-09-16 | 1994-11-24 | Mannesmann Ag | Process for the production of high-strength seamless steel tubes |
JPH09287027A (en) * | 1996-04-19 | 1997-11-04 | Sumitomo Metal Ind Ltd | Manufacturing method of high strength and high toughness seamless steel pipe |
JPH1017986A (en) * | 1996-06-28 | 1998-01-20 | Nippon Steel Corp | Steel with excellent SCC resistance to the outer surface of pipeline |
JP4475023B2 (en) * | 2004-06-10 | 2010-06-09 | 住友金属工業株式会社 | Ultra high strength bend pipe with excellent low temperature toughness |
MXPA05008339A (en) | 2005-08-04 | 2007-02-05 | Tenaris Connections Ag | High-strength steel for seamless, weldable steel pipes. |
-
2008
- 2008-02-28 DE DE102008011856A patent/DE102008011856A1/en not_active Ceased
-
2009
- 2009-02-02 WO PCT/DE2009/000158 patent/WO2009106033A1/en active Application Filing
- 2009-02-02 EP EP09716073.3A patent/EP2245201B1/en not_active Not-in-force
- 2009-02-02 US US12/920,218 patent/US20110259478A1/en not_active Abandoned
- 2009-02-02 MX MX2010009446A patent/MX2010009446A/en active IP Right Grant
- 2009-02-02 BR BRPI0908484A patent/BRPI0908484A8/en not_active Application Discontinuation
- 2009-02-02 JP JP2010547943A patent/JP5715826B2/en not_active Expired - Fee Related
- 2009-02-23 AR ARP090100622A patent/AR070624A1/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01139740A (en) * | 1987-11-27 | 1989-06-01 | Kawasaki Steel Corp | Corrosion-resisting duplex tube |
JPH06172855A (en) * | 1992-12-10 | 1994-06-21 | Nippon Steel Corp | Low Yield Ratio High Toughness Seamless Steel Pipe Manufacturing Method |
WO2004031420A1 (en) * | 2002-10-01 | 2004-04-15 | Sumitomo Metal Industries, Ltd. | High strength seamless steel pipe excellent in hydrogen-induced cracking resistance and its production method |
EP1681364A1 (en) * | 2003-10-20 | 2006-07-19 | JFE Steel Corporation | Expansible seamless steel pipe for use in oil well and method for production thereof |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102154593A (en) * | 2011-05-26 | 2011-08-17 | 天津钢管集团股份有限公司 | X80 steel grade anti-corrosion low-temperature seamless line pipe |
CN102900897A (en) * | 2011-07-28 | 2013-01-30 | 锐迈管业有限公司 | Concrete pump truck elbow and machining technology thereof |
CN105543690A (en) * | 2016-01-19 | 2016-05-04 | 天津钢管集团股份有限公司 | Submarine seamless line pipe above 415SPDF steel grade having large strain resistance |
CN105543705A (en) * | 2016-01-19 | 2016-05-04 | 天津钢管集团股份有限公司 | Manufacturing method for large-strain-resistant corrosion-resistant seamless line pipe for marine environment R-Lay laying |
Also Published As
Publication number | Publication date |
---|---|
JP5715826B2 (en) | 2015-05-13 |
MX2010009446A (en) | 2010-09-30 |
US20110259478A1 (en) | 2011-10-27 |
BRPI0908484A2 (en) | 2015-08-18 |
JP2011513584A (en) | 2011-04-28 |
EP2245201B1 (en) | 2017-09-13 |
AR070624A1 (en) | 2010-04-21 |
DE102008011856A1 (en) | 2009-09-10 |
BRPI0908484A8 (en) | 2017-05-16 |
EP2245201A1 (en) | 2010-11-03 |
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