JP5108771B2 - 耐高温水蒸気酸化性に優れたボイラ用オーステナイト系ステンレス鋼管 - Google Patents
耐高温水蒸気酸化性に優れたボイラ用オーステナイト系ステンレス鋼管 Download PDFInfo
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- JP5108771B2 JP5108771B2 JP2008530768A JP2008530768A JP5108771B2 JP 5108771 B2 JP5108771 B2 JP 5108771B2 JP 2008530768 A JP2008530768 A JP 2008530768A JP 2008530768 A JP2008530768 A JP 2008530768A JP 5108771 B2 JP5108771 B2 JP 5108771B2
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- steel pipe
- austenitic stainless
- stainless steel
- hardness
- steam oxidation
- Prior art date
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- 230000003647 oxidation Effects 0.000 title claims description 51
- 238000007254 oxidation reaction Methods 0.000 title claims description 51
- 229910000963 austenitic stainless steel Inorganic materials 0.000 title claims description 37
- 229910000831 Steel Inorganic materials 0.000 claims description 144
- 239000010959 steel Substances 0.000 claims description 144
- 238000005482 strain hardening Methods 0.000 claims description 26
- 238000005422 blasting Methods 0.000 claims description 16
- 239000010953 base metal Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000001192 hot extrusion Methods 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000010622 cold drawing Methods 0.000 claims description 4
- 238000005097 cold rolling Methods 0.000 claims description 3
- 229910001566 austenite Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 description 17
- 238000012360 testing method Methods 0.000 description 11
- 238000009792 diffusion process Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000010248 power generation Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000004453 electron probe microanalysis Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
-
- 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S148/00—Metal treatment
- Y10S148/902—Metal treatment having portions of differing metallurgical properties or characteristics
- Y10S148/909—Tube
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/47—Burnishing
- Y10T29/479—Burnishing by shot peening or blasting
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Steel (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Description
本発明は、Cr含有量が16〜20重量%のオーステナイト系ステンレス鋼において、高温蒸気に接する過程で鋼管内面に形成されるCr濃化内層スケールが耐高温水蒸気酸化性を向上させる点に特徴がある。このCr濃化内層スケールは、鋼管内面に加えられる冷間加工量および鋼管内表面近傍のCr量に依存し、鋼管内表面への冷間加工量が十分でないか、鋼管内表面近傍位置のCr量が所定量に満たないか、のいずれか場合に、Cr濃化内層スケール生成が十分でなくなることを最初に説明する。
Claims (4)
- 16〜20重量%のCr量を含有し、溶体化熱処理後の脱スケール処理により表面酸化スケールとともに鋼管内面側の母材部の一部を除去したのち、鋼管内面に冷間加工を行ったオーステナイト系ステンレス鋼管であって、鋼管内表面5μm位置でのCr濃度が14重量%以上かつ母材のCr濃度(重量%)未満であり、鋼管内表面位置でのCr濃度が前記鋼管内表面5μm位置でのCr濃度未満であり、鋼管内表面100μm位置の硬さが母材の平均硬度の1.5倍以上またはHv300以上の硬度を有する、耐高温水蒸気酸化ボイラ用オーステナイト系ステンレス鋼管。
- 冷間加工がショットブラスト加工である、請求項1記載の耐高温水蒸気酸化ボイラ用オーステナイト系ステンレス鋼管。
- (a)16〜20重量%のCr量を含有するオーステナイト系ステンレス鋼の熱間圧延素管または熱間押出素管を準備する工程、
(b)熱間圧延素管または熱間押出素管を溶体化熱処理する工程、
(c)溶体化熱処理した鋼管の内面に生成した酸化スケールおよび鋼管内面側の母材部の一部を除去し、鋼管内表面5μm位置でのCr量を14重量%以上かつ母材のCr濃度(重量%)未満、鋼管内表面位置でのCr濃度が前記鋼管内表面5μm位置でのCr濃度未満になるように脱スケールする工程、および
(d)脱スケールした鋼管内表面100μm位置の硬さが母材の平均硬度の1.5倍以上またはHv300以上の硬度を有するように、脱スケールした鋼管の内面に冷間加工を行う工程、
を含む耐高温水蒸気酸化ボイラ用オーステナイト系ステンレス鋼管の製造方法。 - 工程(a)と(b)との間に、(b2)熱間圧延素管または熱間押出素管を冷間圧延加工または冷間引抜加工する工程をさらに含む、
請求項3記載の耐高温水蒸気酸化ボイラ用オーステナイト系ステンレス鋼管の製造方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2006/316453 WO2008023410A1 (fr) | 2006-08-23 | 2006-08-23 | Tuyau en acide inoxydable à base d'austénite pour chaudière, présentant une excellente résistance à l'oxydation par vapeur de haute température |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2008023410A1 JPWO2008023410A1 (ja) | 2010-01-07 |
JP5108771B2 true JP5108771B2 (ja) | 2012-12-26 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008530768A Active JP5108771B2 (ja) | 2006-08-23 | 2006-08-23 | 耐高温水蒸気酸化性に優れたボイラ用オーステナイト系ステンレス鋼管 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8034198B2 (ja) |
EP (1) | EP2060641B1 (ja) |
JP (1) | JP5108771B2 (ja) |
CN (1) | CN101506393B (ja) |
WO (1) | WO2008023410A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104278136A (zh) * | 2013-07-07 | 2015-01-14 | 王波 | 振动钢丸冷作硬化处理不锈钢管内表面 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006062348B4 (de) * | 2006-12-22 | 2016-10-06 | Mitsubishi Hitachi Power Systems Europe Gmbh | Oberflächengestrahlte Dampferzeugerbauteile oder Kraftwerkskomponenten |
JP2009068079A (ja) * | 2007-09-14 | 2009-04-02 | Sumitomo Metal Ind Ltd | 耐水蒸気酸化性に優れた鋼管 |
JP5427575B2 (ja) * | 2009-08-28 | 2014-02-26 | 三菱重工業株式会社 | オーステナイト系ステンレス鋼製機器および配管の切削加工方法ならびにこれを用いて切削加工された原子力プラントの機器および配管 |
EP2581464B1 (en) | 2010-06-09 | 2018-09-19 | Nippon Steel & Sumitomo Metal Corporation | Austenitic stainless steel tube having excellent steam oxidation resistance, and method for producing same |
JP2012201975A (ja) * | 2011-03-28 | 2012-10-22 | Babcock Hitachi Kk | 耐水蒸気酸化性を有するオーステナイト系ステンレス鋼管及びその製造方法 |
US9612008B2 (en) | 2011-06-28 | 2017-04-04 | Nippon Steel & Sumitomo Metal Corporation | Austenitic stainless steel tube |
CN102330035B (zh) * | 2011-10-25 | 2013-11-06 | 宝山钢铁股份有限公司 | 一种耐热钢、耐热钢管及其制造方法 |
JP5029788B1 (ja) * | 2011-11-18 | 2012-09-19 | 住友金属工業株式会社 | オーステナイト系ステンレス鋼 |
JP5296186B2 (ja) | 2011-12-27 | 2013-09-25 | 株式会社神戸製鋼所 | 耐スケール剥離性に優れた耐熱オーステナイト系ステンレス鋼およびステンレス鋼管 |
ES2734051T3 (es) * | 2015-06-05 | 2019-12-04 | Nippon Steel Corp | Acero inoxidable austenítico |
CN105063308B (zh) * | 2015-07-20 | 2017-09-15 | 常熟市南方不锈钢链条有限公司 | 一种堆积式冷冻机专用导轨的制造工艺 |
CN105297040B (zh) * | 2015-08-28 | 2018-06-08 | 中冶南方工程技术有限公司 | 一种热轧304奥氏体不锈钢带钢表面除鳞钝化生产工艺 |
JP6862215B2 (ja) * | 2017-02-22 | 2021-04-21 | 三菱パワー株式会社 | 伝熱管の製造方法ならびに伝熱管およびこれを備えたボイラ |
CN107844863B (zh) * | 2017-11-15 | 2019-12-31 | 东北大学 | 一种超临界电站锅炉过热器管道化学清洗方案的设计方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5839733A (ja) * | 1981-09-04 | 1983-03-08 | Nippon Kokan Kk <Nkk> | オ−ステナイトステンレス鋼管の耐高温水蒸気酸化性を向上させる方法 |
JPS6333549A (ja) * | 1986-07-29 | 1988-02-13 | Nippon Kokan Kk <Nkk> | 耐石炭灰腐食ボイラ用オ−ステナイト鋼管およびその製造法 |
JPH01162786A (ja) * | 1987-12-21 | 1989-06-27 | Kawasaki Steel Corp | 高強度オーステナイト系ステンレス鋼の酸洗方法 |
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JPS5341617B2 (ja) | 1973-05-07 | 1978-11-06 | ||
JPS528930A (en) | 1975-07-14 | 1977-01-24 | Nippon Kokan Kk | Method of preveting oxidation of austenite stainless steel due to highhtemperature steam |
JPS53114722A (en) | 1977-03-17 | 1978-10-06 | Sumitomo Metal Ind Ltd | Manufacture of stainless steel tube having fine grain surface |
JPS54138814A (en) | 1978-04-21 | 1979-10-27 | Nippon Kokan Kk <Nkk> | Thermo-mechanical treatment method for austenitic stainless steel pipe to give hot steam oxidation resistance |
JPS5558329A (en) | 1978-10-21 | 1980-05-01 | Nippon Kokan Kk <Nkk> | Production of iron base alloy pipe of superior oxidation resistance to high temperature steam |
JPS5681658A (en) * | 1979-12-05 | 1981-07-03 | Nippon Kokan Kk <Nkk> | Austenitic alloy pipe with superior hot steam oxidation resistance |
JPH02228468A (ja) * | 1989-02-28 | 1990-09-11 | Ishikawajima Harima Heavy Ind Co Ltd | ステンレス鋼材の表面処理方法 |
JPH06322489A (ja) * | 1993-05-14 | 1994-11-22 | Sumitomo Metal Ind Ltd | 耐水蒸気酸化性に優れたボイラ用鋼管 |
JPH09249946A (ja) * | 1996-03-14 | 1997-09-22 | Nkk Corp | 加圧流動床燃焼型火力発電プラント用鋼 |
EP1637785B9 (en) * | 2004-09-15 | 2011-01-05 | Sumitomo Metal Industries, Ltd. | Steel tube excellent in exfoliation resistance of scale on inner surface |
-
2006
- 2006-08-23 US US12/438,526 patent/US8034198B2/en not_active Expired - Fee Related
- 2006-08-23 EP EP06782906.9A patent/EP2060641B1/en active Active
- 2006-08-23 CN CN2006800556497A patent/CN101506393B/zh not_active Expired - Fee Related
- 2006-08-23 WO PCT/JP2006/316453 patent/WO2008023410A1/ja active Application Filing
- 2006-08-23 JP JP2008530768A patent/JP5108771B2/ja active Active
Patent Citations (3)
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JPS5839733A (ja) * | 1981-09-04 | 1983-03-08 | Nippon Kokan Kk <Nkk> | オ−ステナイトステンレス鋼管の耐高温水蒸気酸化性を向上させる方法 |
JPS6333549A (ja) * | 1986-07-29 | 1988-02-13 | Nippon Kokan Kk <Nkk> | 耐石炭灰腐食ボイラ用オ−ステナイト鋼管およびその製造法 |
JPH01162786A (ja) * | 1987-12-21 | 1989-06-27 | Kawasaki Steel Corp | 高強度オーステナイト系ステンレス鋼の酸洗方法 |
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CN104278136A (zh) * | 2013-07-07 | 2015-01-14 | 王波 | 振动钢丸冷作硬化处理不锈钢管内表面 |
Also Published As
Publication number | Publication date |
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CN101506393A (zh) | 2009-08-12 |
JPWO2008023410A1 (ja) | 2010-01-07 |
CN101506393B (zh) | 2011-08-03 |
WO2008023410A1 (fr) | 2008-02-28 |
EP2060641A4 (en) | 2013-03-20 |
US8034198B2 (en) | 2011-10-11 |
EP2060641B1 (en) | 2018-10-24 |
US20090246064A1 (en) | 2009-10-01 |
EP2060641A1 (en) | 2009-05-20 |
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