NO20056009L - Duplex stainless steel - Google Patents
Duplex stainless steelInfo
- Publication number
- NO20056009L NO20056009L NO20056009A NO20056009A NO20056009L NO 20056009 L NO20056009 L NO 20056009L NO 20056009 A NO20056009 A NO 20056009A NO 20056009 A NO20056009 A NO 20056009A NO 20056009 L NO20056009 L NO 20056009L
- Authority
- NO
- Norway
- Prior art keywords
- stainless steel
- duplex stainless
- inclusions
- microns
- mass
- Prior art date
Links
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
- C22C38/18—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
-
- 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
- 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
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Dupleks rustfiitt stål med utmerket gropkorrosjonsmotstand og sveisbarhet og spesielt et dupleks rustfritt stål som ikke danner små intermetalliske forbindelser selv i en sveisevarmepåvirket sone er tilveiebrakt. Det har en kjemisk sammensetning omfattende C: høyst 0,03 %, Si: høyst 1,0 %, Mn: høyst 1,5 %, P: høyst 0,040 %, S: heyst 0,008 %, Cr: 23,0 - 27,0 %,Mo: 2,0 - 4,0 %, Ni: 5,0 - 9,0 %, W: mer enn 1,5 % opptil 5,0 %, N: 0,24 - 0,35 %, og en rest av Fe og forurensninger, og som tilfredsstiller ligningene PREW = Cr + 3,3(Mo + 0,5W) + 16N er minst 40 Mo + 1, 1 Ni < 12,5 Mo-0,8 Ni <-1,6 hvori antallet av grove inklusjoner med den følgende definisjon iakttatt i et tverrsnitt er høyst 10 per mm^. Idet grove inklusjoner heri er definert som inklusjoner som inneholder minst 20 masse% av Al og som har en hoveddiameter på minst 5 mikrometer. Tetthet (antall av Inklusjoner/mm^) av grove inklusjoner Inneholdende minst 20 masse% Al og som haren hoveddiameter på minst 5 mikrometerDuplex stainless steel with excellent pit corrosion resistance and weldability and especially a duplex stainless steel which does not form small intermetallic connections even in a weld heat affected zone is provided. It has a chemical composition comprising C: at most 0.03%, Si: at most 1.0%, Mn: at most 1.5%, P: at most 0.040%, S: raised 0.008%, Cr: 23.0 - 27, 0%, Mo: 2.0 - 4.0%, Ni: 5.0 - 9.0%, W: more than 1.5% up to 5.0%, N: 0.24 - 0.35%, and a residue of Fe and impurities, and satisfying the equations PREW = Cr + 3.3 (Mo + 0.5W) + 16N is at least 40 Mo + 1, 1 Ni <12.5 Mo-0.8 Ni <-1 , 6 wherein the number of coarse inclusions with the following definition observed in a cross section is at most 10 per mm 2. As coarse inclusions herein are defined as inclusions containing at least 20 mass% of Al and having a main diameter of at least 5 microns. Density (number of Inclusions / mm ^) of coarse inclusions Containing at least 20 mass% Al and having a head diameter of at least 5 microns
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003188045 | 2003-06-30 | ||
PCT/JP2004/009511 WO2005001151A1 (en) | 2003-06-30 | 2004-06-29 | Duplex stainless steel |
Publications (1)
Publication Number | Publication Date |
---|---|
NO20056009L true NO20056009L (en) | 2006-01-11 |
Family
ID=33549741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20056009A NO20056009L (en) | 2003-06-30 | 2005-12-16 | Duplex stainless steel |
Country Status (9)
Country | Link |
---|---|
US (1) | US20060191605A1 (en) |
EP (1) | EP1645650A4 (en) |
JP (1) | JP4265605B2 (en) |
KR (1) | KR100704201B1 (en) |
CN (1) | CN100497704C (en) |
AU (1) | AU2004252373B2 (en) |
BR (1) | BRPI0412092A (en) |
NO (1) | NO20056009L (en) |
WO (1) | WO2005001151A1 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE530847C2 (en) * | 2006-12-14 | 2008-09-30 | Sandvik Intellectual Property | Plate for plate heat exchangers, plate heat exchangers made up of such plates and use of this plate heat exchanger |
SE531593C2 (en) * | 2007-10-26 | 2009-06-02 | Sandvik Intellectual Property | Heat exchanger for phosphoric acid environment |
KR101569306B1 (en) | 2007-11-29 | 2015-11-13 | 에이티아이 프로퍼티즈, 인코퍼레이티드 | Lean austenitic stainless steel |
DK2229463T3 (en) | 2007-12-20 | 2017-10-23 | Ati Properties Llc | Corrosion resistant lean austenitic stainless steel |
US8337749B2 (en) | 2007-12-20 | 2012-12-25 | Ati Properties, Inc. | Lean austenitic stainless steel |
MX2010006038A (en) | 2007-12-20 | 2010-08-11 | Ati Properties Inc | Austenitic stainless steel low in nickel containing stabilizing elements. |
JP5018863B2 (en) * | 2009-11-13 | 2012-09-05 | 住友金属工業株式会社 | Duplex stainless steel with excellent alkali resistance |
CN102296248B (en) * | 2011-08-29 | 2013-04-24 | 江苏九胜特钢制品有限公司 | Diphase tungsten stainless steel alloy material and preparation method thereof |
CN102296249A (en) * | 2011-08-29 | 2011-12-28 | 江苏九胜特钢制品有限公司 | Diphase stainless steel alloy material substituting tungsten for molybdenum and preparation method thereof |
JP6327633B2 (en) * | 2013-09-19 | 2018-05-23 | セイコーインスツル株式会社 | Diaphragm made of duplex stainless steel |
CN103602915B (en) * | 2013-11-22 | 2015-11-18 | 山东建筑大学 | High carbon and chromium duplex stainless steel |
US20170327915A1 (en) * | 2014-10-24 | 2017-11-16 | Nippon Steel & Sumitomo Metal Corporation | Duplex stainless steel and method for producing the same |
CN108048755B (en) * | 2017-11-10 | 2019-06-28 | 洛阳双瑞特种装备有限公司 | A kind of high rigidity anticorrosive cast stainless steel for fluid conveying |
CN110016625B (en) * | 2019-05-15 | 2021-08-03 | 丹阳市华龙特钢有限公司 | High-purity corrosion-resistant alloy material |
JP7469707B2 (en) | 2020-10-23 | 2024-04-17 | 日本製鉄株式会社 | Duplex stainless steel welded joints |
CN113337779A (en) * | 2021-05-21 | 2021-09-03 | 烟台恒邦合金材料有限公司 | Wear-resistant and corrosion-resistant stainless steel material for pumps and preparation method thereof |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5079152A (en) * | 1987-05-28 | 1992-01-07 | Scripps Clinic And Research Foundation | Antibody combining sites that exhibit stereoselective synthase activity, and methods using the same |
JP2500162B2 (en) * | 1991-11-11 | 1996-05-29 | 住友金属工業株式会社 | High strength duplex stainless steel with excellent corrosion resistance |
SE501321C2 (en) * | 1993-06-21 | 1995-01-16 | Sandvik Ab | Ferrite-austenitic stainless steel and use of the steel |
JP3446294B2 (en) * | 1994-04-05 | 2003-09-16 | 住友金属工業株式会社 | Duplex stainless steel |
EP0683241B1 (en) * | 1994-05-21 | 2000-08-16 | Yong Soo Park | Duplex stainless steel with high corrosion resistance |
JPH0813094A (en) * | 1994-06-24 | 1996-01-16 | Sumitomo Metal Mining Co Ltd | Duplex stainless cast steel and production thereof |
JPH08176742A (en) * | 1994-12-27 | 1996-07-09 | Sumitomo Metal Ind Ltd | Duplex stainless steel excellent in corrosion resistance in hydrogen sulfide atmosphere |
JP3241263B2 (en) * | 1996-03-07 | 2001-12-25 | 住友金属工業株式会社 | Manufacturing method of high strength duplex stainless steel pipe |
JP3127822B2 (en) * | 1996-04-10 | 2001-01-29 | 住友金属工業株式会社 | Manufacturing method of seamless stainless steel pipe made of duplex stainless steel |
JPH1088288A (en) * | 1996-09-18 | 1998-04-07 | Sumitomo Metal Ind Ltd | Duplex stainless steel material for high purity gas, and its production |
SE513247C2 (en) * | 1999-06-29 | 2000-08-07 | Sandvik Ab | Ferrite austenitic steel alloy |
JP3534032B2 (en) * | 2000-02-03 | 2004-06-07 | 住友金属工業株式会社 | Method for producing duplex stainless steel pipe |
JP3758508B2 (en) * | 2001-02-13 | 2006-03-22 | 住友金属工業株式会社 | Manufacturing method of duplex stainless steel pipe |
SE524951C2 (en) * | 2001-09-02 | 2004-10-26 | Sandvik Ab | Use of a duplex stainless steel alloy |
-
2004
- 2004-06-29 EP EP04746980A patent/EP1645650A4/en not_active Withdrawn
- 2004-06-29 AU AU2004252373A patent/AU2004252373B2/en not_active Expired
- 2004-06-29 CN CNB2004800188034A patent/CN100497704C/en not_active Expired - Lifetime
- 2004-06-29 JP JP2005511147A patent/JP4265605B2/en not_active Expired - Lifetime
- 2004-06-29 BR BRPI0412092-2A patent/BRPI0412092A/en not_active Application Discontinuation
- 2004-06-29 KR KR1020057025084A patent/KR100704201B1/en active IP Right Grant
- 2004-06-29 WO PCT/JP2004/009511 patent/WO2005001151A1/en active IP Right Grant
-
2005
- 2005-12-16 NO NO20056009A patent/NO20056009L/en not_active Application Discontinuation
- 2005-12-23 US US11/315,203 patent/US20060191605A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CN100497704C (en) | 2009-06-10 |
AU2004252373A1 (en) | 2005-01-06 |
KR20060026898A (en) | 2006-03-24 |
CN1816640A (en) | 2006-08-09 |
AU2004252373B2 (en) | 2007-02-22 |
JPWO2005001151A1 (en) | 2006-08-10 |
KR100704201B1 (en) | 2007-04-09 |
BRPI0412092A (en) | 2006-09-05 |
EP1645650A4 (en) | 2007-07-25 |
US20060191605A1 (en) | 2006-08-31 |
WO2005001151A1 (en) | 2005-01-06 |
EP1645650A1 (en) | 2006-04-12 |
JP4265605B2 (en) | 2009-05-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NO20056009L (en) | Duplex stainless steel | |
RU2008104702A (en) | LOW-ALLOYED STEEL WITH HIGH RESISTANCE TO SULFIDIC CRACKING FOR OIL SECTOR PIPES | |
WO2008136354A1 (en) | Austenitic stainless steel excellent in intergranular corrosion resistance and stress corrosion cracking resistance, and method for producing austenitic stainless steel | |
AR036879A1 (en) | MARTENSITIC STAINLESS STEEL | |
MX2012004745A (en) | Lean austenitic stainless steel. | |
DK2245202T3 (en) | Low nickel Austenitic stainless steel containing stabilizing elements | |
EA200870436A1 (en) | LOW-ALLOYED STEEL, SEAMLESS STEEL PIPES OF OIL-FIELD SORTAGES AND METHOD OF MANUFACTURING SEAMLESS STEEL PIPES | |
RU2009149446A (en) | HEAT RESISTANT FERRITIC STAINLESS STEEL | |
EP1715073A4 (en) | Austenitic-ferritic stainless steel | |
CA2603681A1 (en) | Austenitic stainless steel | |
ATE450627T1 (en) | MARTENSITIC STAINLESS STEEL | |
MXPA05012510A (en) | Oil well steel pipe to be placed under ground and be expanded. | |
NO20080938L (en) | Wire rods of someless stalks and methods of making them | |
DK1786941T3 (en) | Austenistic stainless high strength steel | |
WO2008087807A1 (en) | Austenitic stainless steel welded joint and austenitic stainless steel welding material | |
MX2015003103A (en) | Steel alloy for a low-alloy, high-strength steel. | |
EP1236809A3 (en) | High-hardness martensitic stainless steel excellent in corrosion resistance | |
DE60225951D1 (en) | Duplex stainless steel alloy | |
CA2638289A1 (en) | Oil country tubular good for expansion in well and duplex stainless steel used for oil country tubular good for expansion | |
ATE363552T1 (en) | WELDING PROCESS TO IMPROVE RESISTANCE TO HYDROGEN EMBRITTLEMENT | |
RU2008144690A (en) | STEEL TUBE AS A HIGH PRESSURE FUEL PIPE | |
MX2009002207A (en) | Martensitic stainless steel for welded structure. | |
TW200741016A (en) | Brake disks having high temper softening resistance | |
ATE477345T1 (en) | MARTENSITIC CHROME-NITROGEN STEEL AND USE THEREOF | |
MX352395B (en) | Two-phase stainless steel. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |