EP1705260B1 - Steel - Google Patents
Steel Download PDFInfo
- Publication number
- EP1705260B1 EP1705260B1 EP04775251A EP04775251A EP1705260B1 EP 1705260 B1 EP1705260 B1 EP 1705260B1 EP 04775251 A EP04775251 A EP 04775251A EP 04775251 A EP04775251 A EP 04775251A EP 1705260 B1 EP1705260 B1 EP 1705260B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel
- nickel
- manganese
- molybdenum
- phosphorus
- 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 25
- 239000010959 steel Substances 0.000 title claims abstract description 25
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 31
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 12
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011572 manganese Substances 0.000 claims abstract description 12
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 12
- 239000011733 molybdenum Substances 0.000 claims abstract description 12
- 239000011574 phosphorus Substances 0.000 claims abstract description 12
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 239000010949 copper Substances 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004411 aluminium Substances 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 8
- 239000010955 niobium Substances 0.000 claims abstract description 8
- 239000010936 titanium Substances 0.000 claims abstract description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000005864 Sulphur Substances 0.000 claims abstract description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052785 arsenic Inorganic materials 0.000 claims abstract description 7
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 7
- 239000011575 calcium Substances 0.000 claims abstract description 7
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 7
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 7
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 7
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract 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 abstract description 5
- -1 stibium Chemical compound 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003345 natural gas Substances 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910001309 Ferromolybdenum Inorganic materials 0.000 description 1
- 229910000592 Ferroniobium Inorganic materials 0.000 description 1
- 229910001200 Ferrotitanium Inorganic materials 0.000 description 1
- 229910000628 Ferrovanadium Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- ZFGFKQDDQUAJQP-UHFFFAOYSA-N iron niobium Chemical compound [Fe].[Fe].[Nb] ZFGFKQDDQUAJQP-UHFFFAOYSA-N 0.000 description 1
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 230000007704 transition 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
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
Definitions
- steel can be used for the production of oil pipelines, natural gas pipelines, product pipelines, offshore platforms, welded structures and containers which can operate under pressure, different equipment and its component parts operating in temperatures from - 100°C to +450°C.
- This steel has all properties required for the production of oil pipelines, natural gas pipelines, product pipelines and other welded structures which can operate in temperatures from -100°C to +450°C.
- such steel has strength properties which are insufficient for the manufacture of the above and other products made of steel sheets above 20 mm thick. This drawback can be eliminated by way of increasing hardening characteristics through higher content of alloying agents; nevertheless such steel may demonstrate brittle behavior.
- This invention is aimed at improvement of steel strength properties.
- the result of this invention is as follows: sheets and billets up to 50 mm thick with the following properties: yield stress above 550 N/mm 2 , breaking strength above 620 N/mm 2 ; preserving high ductility in temperatures down to -100°C, resistance to brittle behavior during manufacture and operation, good weldability in factory and field environment.
- the steel containing carbon, manganese, silicium, chrome, nickel, vanadium, niobium, titanium, aluminium, calcium, sulphur, phosphorus, nitrogen, copper, stibium, stannum, arsenic and iron additionally includes molybdenum, with the following component ratio (weight, %): Carbon 0.02-0.11 Manganese 0.10-1.8 Silicium 0.06-0.6 Chrome 0.005-0.30 Nickel 0.005-1.0 Vanadium 0.01-0.12 Niobium 0.02-0.1 Titanium 0.01-0.04 Aluminium 0.01-0.05 Calcium 0.0005-0.008 Sulphur 0.0005-0.008 Phosphorus 0.001-0.012 Nitrogen 0.001-0.012 Copper 0.005-0.25 Stibium 0.0001-0.005 Stannum 0.0001-0.007 Arsenic 0.0001-0.008 Molybdenum 0.0001-0.5 Iron remaining share
- total content of nickel and manganese is related to molybdenum and phosphorus content (weight. %) according to the following equation: Ni + Mn 1 + Mo ⁇ P ⁇ 0.03
- the above mentioned nickel, manganese, molybdenum and phosphorus limits in steel supported by the enumerated ration of components provide both improved hardening characteristics for steel sheets up to 50 mm thick, high values of strength and ductility in low temperatures (down to -100°C) and elimination of embrittlement in the process of manufacture and use of products made from these sheets.
- Table 1 shows the chemical composition of three heats of this steel in comparison with a known composition of steel. Compositions have been selected in such a way so as to estimate molybdenum and nickel contribution to steel sheet strength.
- Furnace charge consisted of armco iron and, depending on variant of composition, of nickel, ferromolybdenum, copper and other charge materials.
- charge meltdown was started. After complete meltdown and metal heating up to 1630-1650°C the charge was degasified and the required predetermined amounts of manganese, ferrovanadium and ferroniobium were added to the molten pool; then deoxidizing agents (ferrosilicium, aluminium and ferrotitanium) were added.
- Table 2 shows the properties of these heats in comparison with heats of a known composition whose C eq is equal to 0.37.
- the obtained results demonstrate that the new steel of the above composition possesses the required strength properties in 50-mm cross-sections and high ductility in low temperatures.
- the ratio between the total content of nickel and manganese and the concentration of molybdenum and phosphorus for heats 1, 2 and 3 is 0.01, 0.0057 and 0.0064, respectively, i.e. less than 0.03.
- Table 1 Chemical composition of three heats of the proposed steel in comparison with a known composition of steel.
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)
- Treatment Of Steel In Its Molten State (AREA)
- Lubricants (AREA)
- Earth Drilling (AREA)
- Materials For Medical Uses (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Description
- This is an invention in metallurgy, referring specifically to steel with high ductility in subzero temperatures, good weldability, resistance to brittle behavior and corrosion, heat-resistance in high temperatures. Such steel can be used for the production of oil pipelines, natural gas pipelines, product pipelines, offshore platforms, welded structures and containers which can operate under pressure, different equipment and its component parts operating in temperatures from - 100°C to +450°C.
- There is steel having the following component ratio (weight, %):
Carbon 0.03 - 0.11 Manganese 0.9-1.8 Silicium 0.06-0.6 Chrome 0.005-0.30 Nickel 0.005-0.3 Vanadium 0.02-0.12 Niobium 0.03-0.1 Titanium 0.01-0.04 Aluminium 0.01-0.055 Calcium 0.001-0.005 Sulphur 0.0005-0.008 Phosphorus 0.0005-0.010 Nitrogen 0.001-0.012 Copper 0.005-0.25 Stibium 0.001-0.005 Stannum 0.001-0.007 Arsenic 0.001-0.008 Iron remaining share (Patent of the Russian Federation No. 2141002 - This steel has all properties required for the production of oil pipelines, natural gas pipelines, product pipelines and other welded structures which can operate in temperatures from -100°C to +450°C. However, such steel has strength properties which are insufficient for the manufacture of the above and other products made of steel sheets above 20 mm thick. This drawback can be eliminated by way of increasing hardening characteristics through higher content of alloying agents; nevertheless such steel may demonstrate brittle behavior.
- This invention is aimed at improvement of steel strength properties. The result of this invention is as follows: sheets and billets up to 50 mm thick with the following properties: yield stress above 550 N/mm2, breaking strength above 620 N/mm2; preserving high ductility in temperatures down to -100°C, resistance to brittle behavior during manufacture and operation, good weldability in factory and field environment.
- Technically, the required result is obtained due to the fact that the steel containing carbon, manganese, silicium, chrome, nickel, vanadium, niobium, titanium, aluminium, calcium, sulphur, phosphorus, nitrogen, copper, stibium, stannum, arsenic and iron additionally includes molybdenum, with the following component ratio (weight, %):
Carbon 0.02-0.11 Manganese 0.10-1.8 Silicium 0.06-0.6 Chrome 0.005-0.30 Nickel 0.005-1.0 Vanadium 0.01-0.12 Niobium 0.02-0.1 Titanium 0.01-0.04 Aluminium 0.01-0.05 Calcium 0.0005-0.008 Sulphur 0.0005-0.008 Phosphorus 0.001-0.012 Nitrogen 0.001-0.012 Copper 0.005-0.25 Stibium 0.0001-0.005 Stannum 0.0001-0.007 Arsenic 0.0001-0.008 Molybdenum 0.0001-0.5 Iron remaining share -
- The above mentioned nickel, manganese, molybdenum and phosphorus limits in steel supported by the enumerated ration of components provide both improved hardening characteristics for steel sheets up to 50 mm thick, high values of strength and ductility in low temperatures (down to -100°C) and elimination of embrittlement in the process of manufacture and use of products made from these sheets.
- Table 1 shows the chemical composition of three heats of this steel in comparison with a known composition of steel. Compositions have been selected in such a way so as to estimate molybdenum and nickel contribution to steel sheet strength.
- All heats have been performed in a vacuum induction furnace. Furnace charge consisted of armco iron and, depending on variant of composition, of nickel, ferromolybdenum, copper and other charge materials. When the required underpressure in the furnace was achieved charge meltdown was started. After complete meltdown and metal heating up to 1630-1650°C the charge was degasified and the required predetermined amounts of manganese, ferrovanadium and ferroniobium were added to the molten pool; then deoxidizing agents (ferrosilicium, aluminium and ferrotitanium) were added.
- As the temperature of liquid steel reached the required level (1560-1580°C) the airfree metal was run off directly from the smelting crucible to the casting mold. Molded ingots were then cooled in casting molds under normal pressure, not in vacuum.
- On the whole, 12 trial heats have been performed in the vacuum induction furnace. Analysis of metal chemical composition has been performed for all heats and, on the basis of its results, three heats were selected with equivalent carbon content equal to 0.37.
-
- Table 2 shows the properties of these heats in comparison with heats of a known composition whose Ceq is equal to 0.37. The obtained results demonstrate that the new steel of the above composition possesses the required strength properties in 50-mm cross-sections and high ductility in low temperatures. The ratio between the total content of nickel and manganese and the concentration of molybdenum and phosphorus for heats 1, 2 and 3 is 0.01, 0.0057 and 0.0064, respectively, i.e. less than 0.03.
Table 1. Chemical composition of three heats of the proposed steel in comparison with a known composition of steel. Component Content (weight,%) Heat 1 Heat 2 Heat 3 Heat of known steel carbon 0.02 0.04 0.09 0.06 manganese 1.5 1.0 0.3 1.4 silicium 0.1 0.18 0.25 0.25 chrome 0.05 0.28 0.2 0.15 nickel 0.5 0.1 0.9 0.1 vanadium 0.1 0.05 0.01 0.07 niobium 0.032 0.06 0.087 0.06 titanium 0.01 0.015 0.035 0.015 aluminium 0.012 0.021 0.028 0.024 calcium 0.0005 0.003 0.006 0.005 sulphur 0.0035 0.004 0.008 0.003 phosphorus 0.005 0.007 0.008 0.005 nitrogen 0.005 0.006 0.007 0.007 copper 0.23 0.1 0.01 0.15 stibium 0.0003 0.0009 0.004 0.005 stannum 0.0005 0.005 0.007 0.005 arsenic 0.0002 0.004 0.008 0.008 molybdenum 0.0001 0.35 0.5 - equivalent carbon content 0.37 0.37 0.37 0.37 0.01 0.0057 0.0064 - Table 2. Properties of the heats of Table 1. Heat Cross section, mm Breaking strength, N/mm2 Yield stress, N/mm2 Ductile-brittle transition point, °C 1 20/50 836/687 706/583 -90/-100 2 20/50 807/712 683/600 -90/-100 3 20/50 767/657 650/566 -90/-100 Heat of known steel 20/50 621/528 528/449 -80/-30
Claims (1)
- Steel, containing carbon; manganese, silicium; chrome, nickel, vanadium, niobium, titanium, aluminium, calcium, sulphur, phosphorus, nitrogen, copper, stibium, stannum, arsenic and iron. Its distinctive feature is additional content of molybdenum, with the following component ratio (weight, %):
Carbon 0.02-0.11 Manganese 0.10-1.8 Silicium 0.06-0.6 Chrome 0.005 - 0.30 Nickel 0.005-1.0 Vanadium 0.01-0.12 Niobium 0.02-0.1 Titanium 0.01-0.04 Aluminium 0.01-0.05 Calcium 0.0005-0.008 Sulphur 0.0005-0.008 Phosphorus 0.001-0.012 Nitrogen 0.001-0.012 Copper 0.005-0.25 Stibium 0.0001-0.005 Stannum 0.0001-0.007 Arsenic 0.0001-0.008 Molybdenum 0.0001-0.5 Iron remaining share,
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2003137757/02A RU2241780C1 (en) | 2003-12-30 | 2003-12-30 | Steel |
PCT/RU2004/000307 WO2005064032A1 (en) | 2003-12-30 | 2004-08-06 | Steel |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1705260A1 EP1705260A1 (en) | 2006-09-27 |
EP1705260A4 EP1705260A4 (en) | 2008-08-13 |
EP1705260B1 true EP1705260B1 (en) | 2010-07-07 |
Family
ID=34388745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04775251A Expired - Lifetime EP1705260B1 (en) | 2003-12-30 | 2004-08-06 | Steel |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP1705260B1 (en) |
JP (1) | JP2007517139A (en) |
KR (1) | KR20070008543A (en) |
CN (1) | CN100513622C (en) |
AT (1) | ATE473310T1 (en) |
DE (1) | DE602004028045D1 (en) |
RU (1) | RU2241780C1 (en) |
UA (2) | UA8385U (en) |
WO (1) | WO2005064032A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2252972C1 (en) * | 2004-06-07 | 2005-05-27 | Закрытое акционерное общество Научно-производственное объединение "ПОЛИМЕТАЛЛ" | Pipe for gas- and product pipelines and a method of its production |
CN101538679B (en) * | 2009-04-17 | 2010-09-29 | 钢铁研究总院 | Microalloyed easy welding nitrogen-increasing steel with |
CN102206787B (en) * | 2011-04-28 | 2014-06-11 | 广东省韶关钢铁集团有限公司 | Low-roll-force gas-transmission pipeline steel and production method thereof |
CN102181807B (en) * | 2011-05-09 | 2012-12-12 | 武汉钢铁(集团)公司 | Steel for nuclear power pressure equipment at temperature of -50 DEG C and manufacturing method thereof |
CN103352179B (en) * | 2013-06-24 | 2015-12-02 | 浙江浦宁不锈钢有限公司 | A kind of phosphorus-containing alloy |
CN104789885A (en) * | 2015-04-23 | 2015-07-22 | 苏州劲元油压机械有限公司 | Corrosion-resistant stainless steel oil delivery pipe and processing technology thereof |
CN106868422A (en) * | 2015-12-14 | 2017-06-20 | 泸州沱江液压件有限公司 | A kind of high-strength material steel of Low temperature-resistancorrosion-resistant corrosion-resistant |
CN107236909B (en) * | 2017-06-16 | 2019-06-18 | 武汉钢铁有限公司 | It can be used for the high intensity, high tenacity corrosion resistant steel and its production method of -60 DEG C of low temperature environments |
CN107626546A (en) * | 2017-09-26 | 2018-01-26 | 烟台史密得机电设备制造有限公司 | A kind of electrostatic spraying hardening cooling device |
CN113817965A (en) * | 2021-09-02 | 2021-12-21 | 江苏伟建工具科技有限公司 | High-toughness high-speed steel and preparation method thereof |
Family Cites Families (9)
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JPS5431019A (en) * | 1977-08-12 | 1979-03-07 | Kawasaki Steel Co | Steel material having good resistance to hydrogenninduceddcracking |
JPS589926A (en) * | 1981-07-09 | 1983-01-20 | Kawasaki Steel Corp | Production of api standard class x80 steel pipe of superior low temperature toughness |
US5545269A (en) * | 1994-12-06 | 1996-08-13 | Exxon Research And Engineering Company | Method for producing ultra high strength, secondary hardening steels with superior toughness and weldability |
RU2136776C1 (en) * | 1995-02-03 | 1999-09-10 | Ниппон Стил Корпорейшн | High-strength steel for main pipelines with low yield factor and high low-temperature ductility |
DE69836549T2 (en) * | 1997-07-28 | 2007-09-13 | Exxonmobil Upstream Research Co., Houston | MANUFACTURING METHOD FOR ULTRA-HIGH-WELD, WELDABLE STEELS WITH EXCELLENT TOOTHNESS |
RU2141002C1 (en) * | 1999-02-15 | 1999-11-10 | Открытое акционерное общество "Акционерная компания "Транснефть" | Steel |
JP2001064749A (en) * | 1999-08-27 | 2001-03-13 | Kawasaki Steel Corp | Hic-resisting non-heat treated high tensile strength steel product excellent in toughness in weld heat-affected zone |
JP4071906B2 (en) * | 1999-11-24 | 2008-04-02 | 新日本製鐵株式会社 | Manufacturing method of steel pipe for high tension line pipe with excellent low temperature toughness |
RU2180691C1 (en) * | 2000-09-04 | 2002-03-20 | Акционерное общество закрытого типа Научно-производственное объединение "Полиметалл" | Pipe for gas and oil product lines and method of its manufacture |
-
2003
- 2003-12-30 RU RU2003137757/02A patent/RU2241780C1/en active IP Right Revival
-
2004
- 2004-07-28 UA UA20040706307U patent/UA8385U/en unknown
- 2004-07-28 UA UA20040706306A patent/UA78268C2/en unknown
- 2004-08-06 DE DE602004028045T patent/DE602004028045D1/en not_active Expired - Lifetime
- 2004-08-06 CN CNB2004800396361A patent/CN100513622C/en not_active Expired - Fee Related
- 2004-08-06 EP EP04775251A patent/EP1705260B1/en not_active Expired - Lifetime
- 2004-08-06 WO PCT/RU2004/000307 patent/WO2005064032A1/en active Application Filing
- 2004-08-06 JP JP2006546883A patent/JP2007517139A/en active Pending
- 2004-08-06 KR KR1020067014138A patent/KR20070008543A/en not_active Application Discontinuation
- 2004-08-06 AT AT04775251T patent/ATE473310T1/en active
Also Published As
Publication number | Publication date |
---|---|
EP1705260A4 (en) | 2008-08-13 |
EP1705260A1 (en) | 2006-09-27 |
WO2005064032A1 (en) | 2005-07-14 |
DE602004028045D1 (en) | 2010-08-19 |
CN1926257A (en) | 2007-03-07 |
CN100513622C (en) | 2009-07-15 |
UA78268C2 (en) | 2007-03-15 |
ATE473310T1 (en) | 2010-07-15 |
JP2007517139A (en) | 2007-06-28 |
UA8385U (en) | 2005-08-15 |
KR20070008543A (en) | 2007-01-17 |
WO2005064032A8 (en) | 2006-11-02 |
RU2241780C1 (en) | 2004-12-10 |
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