EP2832879A1 - Tuyau d'acier à haute résistance pour tuyau de canalisation ayant une excellente résistance à la fissuration induite par hydrogène, tuyau d'acier à haute résistance pour tuyau de canalisation l'utilisant et son procédé de fabrication - Google Patents
Tuyau d'acier à haute résistance pour tuyau de canalisation ayant une excellente résistance à la fissuration induite par hydrogène, tuyau d'acier à haute résistance pour tuyau de canalisation l'utilisant et son procédé de fabrication Download PDFInfo
- Publication number
- EP2832879A1 EP2832879A1 EP13768001.3A EP13768001A EP2832879A1 EP 2832879 A1 EP2832879 A1 EP 2832879A1 EP 13768001 A EP13768001 A EP 13768001A EP 2832879 A1 EP2832879 A1 EP 2832879A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel
- less
- steel plate
- pipe
- line pipe
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 252
- 239000010959 steel Substances 0.000 title claims abstract description 252
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000001257 hydrogen Substances 0.000 title claims abstract description 50
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims description 22
- 238000000034 method Methods 0.000 title claims description 19
- 238000005336 cracking Methods 0.000 title abstract description 4
- 239000002344 surface layer Substances 0.000 claims abstract description 48
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 39
- 229910001568 polygonal ferrite Inorganic materials 0.000 claims abstract description 27
- 238000005204 segregation Methods 0.000 claims description 89
- 238000001816 cooling Methods 0.000 claims description 42
- 238000003303 reheating Methods 0.000 claims description 29
- 229910052758 niobium Inorganic materials 0.000 claims description 24
- 238000001953 recrystallisation Methods 0.000 claims description 18
- 230000009467 reduction Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 14
- 238000011282 treatment Methods 0.000 claims description 13
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 12
- 238000005098 hot rolling Methods 0.000 claims description 10
- 229910052748 manganese Inorganic materials 0.000 claims description 10
- 238000007670 refining Methods 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 9
- 229910052717 sulfur Inorganic materials 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 229910052796 boron Inorganic materials 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229910052735 hafnium Inorganic materials 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 229910052702 rhenium Inorganic materials 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 229910052715 tantalum Inorganic materials 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 229910052720 vanadium Inorganic materials 0.000 claims description 6
- 229910052727 yttrium Inorganic materials 0.000 claims description 6
- 229910052726 zirconium Inorganic materials 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 28
- 238000005096 rolling process Methods 0.000 description 26
- 238000009826 distribution Methods 0.000 description 21
- 229910052719 titanium Inorganic materials 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 21
- 230000000694 effects Effects 0.000 description 18
- 230000006872 improvement Effects 0.000 description 14
- 230000015572 biosynthetic process Effects 0.000 description 11
- 150000002910 rare earth metals Chemical class 0.000 description 10
- 238000007711 solidification Methods 0.000 description 10
- 230000008023 solidification Effects 0.000 description 10
- 229910001566 austenite Inorganic materials 0.000 description 7
- 229910001563 bainite Inorganic materials 0.000 description 6
- 238000009749 continuous casting Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 150000004767 nitrides Chemical class 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 229910000734 martensite Inorganic materials 0.000 description 5
- 150000001247 metal acetylides Chemical class 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 150000003568 thioethers Chemical class 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000003009 desulfurizing effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 238000000879 optical micrograph Methods 0.000 description 2
- 229910001562 pearlite Inorganic materials 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
Images
Classifications
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- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
- C22C38/08—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
- C22C38/12—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
-
- 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
-
- 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
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- 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
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- 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
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
-
- 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
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
Definitions
- the inventors discovered that by optimizing the cooling conditions after rolling steel plate, it becomes possible to make the hardness of the surface layer region of steel plate, which in the past was about 350Hv, 300Hv or less and, as a result, suppress the occurrence of HIC from inclusions near the inside and outside surfaces even with high t/D steel pipe and obtain steel pipe which has excellent HIC resistance near the inside and outside surfaces of steel pipe.
- the present invention was made based on this discovery and has as its gist the following:
- Si is a deoxidizing element. 0.01% or more has to be added. If the amount of Si exceeds 0.5%, the toughness of the heat affected zone (HAZ) deteriorates.
- Cr is an element which improves the strength of steel by precipitation strengthening. To obtain this effect, 0.01% or more has to be added. If the amount of addition of Cr exceeds 1.0%, the hardenability rises, a bainite structure is formed, and as a result the HIC resistance and toughness fall.
- the water cooling start temperature 750°C or more it is possible to suppress the formation of hard martensite, so it is possible to suppress the maximum hardness of the centerline segregation to 300Hv or less. Further, if making the water cooling stop temperature 400°C or more, after the transformation, the hard martensite partially breaks down, so the maximum hardness of the centerline segregation can be suppressed to 300Hv or less. If the water cooling stop temperature is too high, the steel pipe deteriorates in strength, so the water cooling stop temperature is made 600°C or less.
- Table 2A to Table 2C show the thickness of the steel plate, maximum Mn segregation ratio, Nb segregation ratio, Ti segregation ratio, length of center-porosities, maximum hardness of centerline segregation, maximum hardness of surface region, tensile strength and length ratio of HIC (CLR) found by HIC test, and total fraction of polygonal ferrite and deformed ferrite in surface layer region.
- CLR HIC
- Steel Plates 24 to 43 are comparative examples outside the scope of the present invention.
- Steel Plates 24 to 35 have one of the elements among the basic components or optional added elements outside the scope of the present invention.
- Steel Plates 36 to 43 do not satisfy the production conditions of the present invention.
- HIC occurred in HIC tests, the CLR exceeded 3%, or the ductile fracture rate of DWTT at 0°C was less than 85%.
- FIG. 4A shows the hardness distribution from the topmost layer down to 5 mm of the Steel 11 produced by the method of production of the present invention
- FIG. 4B shows a photo of the structure of the surface layer of the Steel 11.
- FIG. 5A shows the hardness distribution from the topmost layer down to 5 mm of the Steel 40 produced by the conventional method of production of the present invention
- FIG. 5B shows a photo of the structure of the surface layer of the Steel 40.
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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012079554 | 2012-03-30 | ||
| PCT/JP2013/059617 WO2013147197A1 (fr) | 2012-03-30 | 2013-03-29 | Tuyau d'acier à haute résistance pour tuyau de canalisation ayant une excellente résistance à la fissuration induite par hydrogène, tuyau d'acier à haute résistance pour tuyau de canalisation l'utilisant et son procédé de fabrication |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP2832879A1 true EP2832879A1 (fr) | 2015-02-04 |
| EP2832879A4 EP2832879A4 (fr) | 2016-01-13 |
| EP2832879B1 EP2832879B1 (fr) | 2019-11-20 |
Family
ID=49260438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13768001.3A Active EP2832879B1 (fr) | 2012-03-30 | 2013-03-29 | Tuyau d'acier à haute résistance pour tuyau de canalisation ayant une excellente résistance à la fissuration induite par hydrogène, tôle d'acier à haute résistance pour tuyau de canalisation l'utilisant et son procédé de fabrication |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2832879B1 (fr) |
| JP (1) | JP5392441B1 (fr) |
| KR (1) | KR101615842B1 (fr) |
| CN (1) | CN104024461B (fr) |
| WO (1) | WO2013147197A1 (fr) |
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| EP3159418A1 (fr) * | 2015-10-21 | 2017-04-26 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Plaque d'acier et montage collé |
| EP3561106A4 (fr) * | 2016-12-22 | 2019-10-30 | Posco | Matériau d'acier à paroi épaisse doté d'une résistance à la traction de 450 mpa et d'une excellente résistance à la fissuration induite par hydrogène, et procédé de fabrication d'un tel matériau d'acier à paroi épaisse |
| EP3686304A4 (fr) * | 2017-09-19 | 2021-01-27 | Nippon Steel Corporation | Tube en acier et tôle en acier |
| EP3816311A4 (fr) * | 2018-06-29 | 2021-12-01 | Nippon Steel Corporation | Tuyau d'acier et tôle d'acier |
| US20220042131A1 (en) * | 2018-11-30 | 2022-02-10 | Posco | Pressure vessel steel having excellent hydrogen induced cracking resistance, and manufacturing method therefor |
| US11548041B2 (en) | 2016-05-23 | 2023-01-10 | Robowash Pty Ltd. | Apparatus and method for cleaning machines |
| US11548042B2 (en) | 2016-12-13 | 2023-01-10 | Robowash Pty Ltd. | Apparatus and method for cleaning industrial parts |
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| WO2016104526A1 (fr) * | 2014-12-26 | 2016-06-30 | 株式会社神戸製鋼所 | Tôle d'acier présentant une excellente résistance à la fissuration induite par l'hydrogène et tube d'acier pour tuyau de canalisation |
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| WO2016104527A1 (fr) * | 2014-12-26 | 2016-06-30 | 株式会社神戸製鋼所 | Tôle d'acier présentant une excellente résistance à la fissuration induite par l'hydrogène et tube d'acier pour tube de canalisation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06220577A (ja) | 1993-01-26 | 1994-08-09 | Kawasaki Steel Corp | 耐ｈｉｃ特性に優れた高張力鋼及びその製造方法 |
| JPH06256894A (ja) | 1993-03-08 | 1994-09-13 | Nippon Steel Corp | 耐水素誘起割れ性に優れた高強度ラインパイプ |
| JPH06271974A (ja) | 1993-03-18 | 1994-09-27 | Nippon Steel Corp | 耐水素誘起割れ性に優れたラインパイプ |
| JP3633515B2 (ja) | 2001-06-12 | 2005-03-30 | 住友金属工業株式会社 | 耐水素誘起割れ性に優れた熱延鋼板およびその製造方法 |
| KR20040075971A (ko) * | 2002-02-07 | 2004-08-30 | 제이에프이 스틸 가부시키가이샤 | 고강도 강판 및 그 제조방법 |
| JP2006063351A (ja) | 2004-08-24 | 2006-03-09 | Sumitomo Metal Ind Ltd | 耐水素誘起割れ性に優れた高強度鋼板および製造方法、並びにラインパイプ用鋼管 |
| JP4725437B2 (ja) | 2006-06-30 | 2011-07-13 | 住友金属工業株式会社 | 厚鋼板用連続鋳造鋳片及びその製造方法並びに厚鋼板 |
| JP4900260B2 (ja) * | 2008-01-25 | 2012-03-21 | Ｊｆｅスチール株式会社 | 延性亀裂伝播特性および耐サワー性に優れる熱延鋼板の製造方法 |
| JP5439887B2 (ja) * | 2008-03-31 | 2014-03-12 | Ｊｆｅスチール株式会社 | 高張力鋼およびその製造方法 |
| RU2459875C1 (ru) * | 2008-11-07 | 2012-08-27 | Ниппон Стил Корпорейшн | Способ получения толстолистовой стали и стальных труб для ультравысокопрочного трубопровода |
| JP5423323B2 (ja) * | 2009-02-12 | 2014-02-19 | 新日鐵住金株式会社 | 耐水素誘起割れ性に優れた高強度ラインパイプ用鋼板及び高強度ラインパイプ用鋼管 |
| JP5423324B2 (ja) | 2009-02-12 | 2014-02-19 | 新日鐵住金株式会社 | 耐水素誘起割れ性に優れた高強度ラインパイプ用鋼板及び高強度ラインパイプ用鋼管 |
-
2013
- 2013-03-29 EP EP13768001.3A patent/EP2832879B1/fr active Active
- 2013-03-29 KR KR1020147022203A patent/KR101615842B1/ko active IP Right Grant
- 2013-03-29 CN CN201380004638.6A patent/CN104024461B/zh active Active
- 2013-03-29 JP JP2013533435A patent/JP5392441B1/ja active Active
- 2013-03-29 WO PCT/JP2013/059617 patent/WO2013147197A1/fr active Application Filing
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3159418A1 (fr) * | 2015-10-21 | 2017-04-26 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Plaque d'acier et montage collé |
| US11548041B2 (en) | 2016-05-23 | 2023-01-10 | Robowash Pty Ltd. | Apparatus and method for cleaning machines |
| US11548042B2 (en) | 2016-12-13 | 2023-01-10 | Robowash Pty Ltd. | Apparatus and method for cleaning industrial parts |
| EP3561106A4 (fr) * | 2016-12-22 | 2019-10-30 | Posco | Matériau d'acier à paroi épaisse doté d'une résistance à la traction de 450 mpa et d'une excellente résistance à la fissuration induite par hydrogène, et procédé de fabrication d'un tel matériau d'acier à paroi épaisse |
| EP3686304A4 (fr) * | 2017-09-19 | 2021-01-27 | Nippon Steel Corporation | Tube en acier et tôle en acier |
| EP3816311A4 (fr) * | 2018-06-29 | 2021-12-01 | Nippon Steel Corporation | Tuyau d'acier et tôle d'acier |
| US20220042131A1 (en) * | 2018-11-30 | 2022-02-10 | Posco | Pressure vessel steel having excellent hydrogen induced cracking resistance, and manufacturing method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5392441B1 (ja) | 2014-01-22 |
| BR112014019281A8 (pt) | 2017-07-11 |
| JPWO2013147197A1 (ja) | 2015-12-14 |
| CN104024461A (zh) | 2014-09-03 |
| KR20140116913A (ko) | 2014-10-06 |
| WO2013147197A1 (fr) | 2013-10-03 |
| KR101615842B1 (ko) | 2016-04-26 |
| EP2832879A4 (fr) | 2016-01-13 |
| EP2832879B1 (fr) | 2019-11-20 |
| BR112014019281A2 (fr) | 2017-06-20 |
| CN104024461B (zh) | 2016-04-06 |
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