WO2008047869A1 - Nickel material for chemical plant - Google Patents
Nickel material for chemical plant Download PDFInfo
- Publication number
- WO2008047869A1 WO2008047869A1 PCT/JP2007/070351 JP2007070351W WO2008047869A1 WO 2008047869 A1 WO2008047869 A1 WO 2008047869A1 JP 2007070351 W JP2007070351 W JP 2007070351W WO 2008047869 A1 WO2008047869 A1 WO 2008047869A1
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- WIPO (PCT)
- Prior art keywords
- carbon
- nickel material
- nickel
- corrosion resistance
- content
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
-
- 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
- C21D2211/004—Dispersions; Precipitations
-
- 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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
-
- 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
Definitions
- the present invention relates to a nickel material for a chemical plant, and more particularly to a nickel material for a chemical plant suitable for use as a structural member of a plant handling a corrosive substance such as chemical industry.
- Nickel is particularly excellent in corrosion resistance in an alkali and has corrosion resistance even in a high-concentration chloride environment. Therefore, it is used as a component in various chemical plants such as caustic soda and chlor chloride manufacturing equipment.
- the above members include a seamless pipe, a welded pipe, a plate, and an elbow.
- a member made of nickel hereinafter also referred to as “nickel material”.
- nickel contains carbon as an impurity element.
- the solid solubility limit of carbon in nickel is low. For this reason, when nickel material is used for a long time at high temperature, carbon is precipitated at the grain boundary, or when welding is performed on the nickel material, carbon precipitates at the grain boundary due to the heat effect during welding, and the nickel material becomes brittle. May deteriorate the mechanical properties or deteriorate the corrosion resistance.
- the nickel material is 0.15 in the case of ordinary carbon level nickel material (alloy number: NW2200).
- the carbon specification value is less than 0.02% in the low carbon level nickel material (alloy number: NW2201) while the carbon specification value is less than%.
- Nickel with a carbon content reduced to 0.02% or less from the carbon level has been put into practical use.
- Patent Document 1 discloses an "improved nickel anode" for nickel plating containing 0.1 to 0.5% carbon and 0.;! To 1% titanium in pure Ni. It is disclosed. According to this technology, by adding titanium with a high affinity for carbon, when the anode dissolves in the plating solution, it reacts with carbon to become TiC, forming a TiC thin film, and nickel particles that collapse and fall off. By suppressing this, a beautiful glossy texture can be obtained.
- Patent Document 2 describes that, by weight, C: 0.05 to 0.3%, Mo: 8% or less and / or ⁇ b: 5.5% or less, and 3. l X Nb + A “high hardness and low contact electric resistance Ni alloy” containing 7 to 17% of Mo is disclosed, and Nb is stated to precipitate Nb carbides and harden Ni.
- Patent Document 3 contains a specific amount of at least one of Ti, Nb, Si, Zr, Hf, Mo, and Ta, and forms a boride by boriding to form a very hard! /, “Ni-based alloy for boriding” that forms a boride layer is disclosed!
- Patent Document 4 describes that Ni ⁇ 99, which prevents weld defects such as cracks and blowholes.
- Patent Document 1 Japanese Patent Publication No. 36-14006
- Patent Document 2 JP-A-2-236250
- Patent Document 3 Japanese Patent Laid-Open No. 62-250141
- Patent Document 4 Japanese Patent Publication No. 44 10654
- Patent Documents 1 and 2 describe that Ti and Nb are added to cause carbon to be precipitated as carbides, but in any case, the carbon contained in Ni. No consideration has been given to the deterioration of mechanical properties and corrosion resistance due to precipitation at grain boundaries! For this reason, in the case of the techniques disclosed in Patent Documents 1 and 2, carbon is precipitated at the grain boundary when used for a long time at a high temperature, or carbon is precipitated at the grain boundary due to the thermal effect during welding. If mechanical properties are impaired or corrosion resistance deteriorates, it cannot always be suppressed.
- Patent Documents 3 and 4 are similar to the techniques disclosed in Patent Documents 1 and 2, and the mechanical properties and corrosion resistance due to precipitation of carbon contained in Ni at grain boundaries. No consideration has been given to sexual degradation. For this reason, in the techniques disclosed in Patent Documents 3 and 4, carbon is precipitated at the grain boundary when used for a long time at a high temperature, or carbon is precipitated at the grain boundary due to the heat effect during welding. If it is damaged or the corrosion resistance deteriorates, it will not always be possible to suppress this.
- the object of the present invention is to use various types of equipment such as caustic soda and bull chloride production equipment without deterioration in mechanical properties and corrosion resistance even when used at high temperatures for a long time or under the influence of heat during welding. It is to provide a nickel material for a chemical plant that can be suitably used as a member in an academic plant.
- Ti, Nb, V and Ta are elements that form thermodynamically stable carbides, and N precipitates as carbides with strong affinity for carbon. If precipitated in the grains, the amount of carbon dissolved in Ni decreases, so the amount of carbon precipitated at the grain boundaries decreases due to long-term use at high temperatures and thermal effects during welding.
- the Ti, Nb, V, and Ta carbides are precipitated in a high temperature region during dissolution and solidification in the manufacturing process, and the precipitation position is often a grain boundary.
- the total content of one or more of Ti, Nb, V and Ta is limited, and the carbon content and the Ti, Nb, If the contents of V and Ta satisfy a specific relational expression, the amount of carbon that dissolves in Ni decreases by the amount precipitated as carbide.
- the carbides precipitated at the grain boundaries in the high temperature region at the time of dissolution and solidification are repeatedly subjected to crystal deformation and recrystallization by hot working, cold working and heat treatment in the manufacturing process of the Nikkenore material after solidification. It becomes finely distributed within the grain.
- precipitation of carbides such as Ti and Nb can be expected to improve the mechanical properties by making the crystal grains finer.
- the present invention has been completed based on the above findings, and the gist thereof is the following nickel material for chemical plants.
- the nickel material for a chemical plant of the present invention has one or more content powers of Ti, Nb, V and Ta, which are elements having a stronger affinity for carbon than nickel, and a specific relationship with the carbon content. Since the carbon content is as low as C: 0.003-0.20%, the amount of carbon precipitated at the grain boundaries is greatly reduced, preventing deterioration of corrosion resistance and mechanical properties. This can be done with power S. For this reason, mechanical properties and corrosion resistance do not deteriorate even when used at high temperatures for long periods of time or under the influence of heat during welding. Suitable for use in various chemical plants such as caustic soda and chlor chloride manufacturing equipment. be able to.
- Fig. 1 shows an example of a nickel material having a chemical composition used in the examples within the range specified in the present invention. It is a figure which shows the situation of precipitation of TiC to V, NA! /, A grain boundary, and a grain, and the arrow in a figure shows TiC.
- FIG. 2 shows an optical microscope observation and a transmission electron microscope observation in the case of alloy No. 10 as an example of a comparative nickel material whose chemical composition used in the examples deviated from the conditions specified in the present invention. It is a figure which shows precipitation of the carbon to the grain boundary by.
- Figure 2 (a) shows the light.
- Fig. 2 (b) shows the results of observation by an observation microscope, and
- Fig. 2 (b) shows the results of observation by a transmission electron microscope.
- the arrows in the figure indicate the carbon deposited at the grain boundaries.
- % of the chemical component content means “mass%”.
- the C content is less than 0.003%, there is no problem of carbon precipitation at the grain boundaries, which affects corrosion resistance and mechanical properties due to long-term use at high temperatures and thermal effects during welding.
- the lower limit was set to 0.003%.
- the C content is 0.003-0.20%.
- the upper limit of the C content is preferably 0.10%, more preferably less than 0.05%.
- One or more of Ti, Nb, V and Ta a total amount of less than 1.0% and an amount satisfying the formula (1)
- Ti, Nb, V, and Ta all combine with carbon contained in Ni to form carbides in the manufacturing process of a member made of nickel that has a strong affinity for carbon.
- the total content of one or more of Ti, Nb, V and Ta is less than 1 ⁇ 0%, and in relation to the carbon content, the above formula (1), that is, “(12 / 48) Ti + (12/93) Nb + (1 2/51) V + (12/181) Ta— C ⁇ 0 ”, the amount of carbon dissolved in Ni decreases, and The carbides precipitated at the grain boundaries in the high-temperature region during dissolution and solidification are repeatedly subjected to crystal deformation and recrystallization by hot working, cold working and heat treatment in the nickel material manufacturing process after solidification, so that they are finely divided within the grains. Be distributed.
- carbides are finely dispersed in the grains, the corrosion resistance and mechanical properties are not adversely affected, so that the deterioration of the corrosion resistance and mechanical properties is suppressed. Furthermore, precipitation of carbides such as Ti and Nb can also be expected to improve the mechanical properties by refining the crystal grains.
- the lower limit of the content of Ti, Nb, V, and Ta is the amount and formation of carbon contained in Ni.
- the upper limit of the content of Ti, Nb, V, and Ta may be in a range that does not adversely affect the corrosion resistance and mechanical properties such as strength and toughness in relation to the carbon content. However, if it is contained excessively, the strength becomes too high, resulting in a decrease in workability and a decrease in corrosion resistance. Therefore, one or more of Ti, Nb, V and Ta are used. The total amount of was made less than 1.0%.
- the total amount of one or more of Ti, Nb, V and Ta is preferably 0.8% or less.
- the nickel material for chemical plants of the present invention is C% 0.003-0.
- the Ni content as a nickel material for chemical plants which is particularly excellent in corrosion resistance in an alkali and has corrosion resistance even in a high concentration chloride environment, is 98% or more. More preferably
- Mn 0.3% or less
- Fe 0.4% or less
- Si 0.3% or less
- S 0.01% or less.
- the total amount of impurities is more preferably less than 1.0%, and even more preferably less than 0.5%.
- the nickel material of the present invention can be manufactured by melting using an electric furnace, an AOD furnace, a VOD furnace, a VIM furnace or the like with a force S.
- the melted metal is made into slab, bloom or billet by V, hot forging after forging into an ingot by the so-called “ingot-making method”, or continuous forging.
- a tube material for example, hot processing into a tube by the hot extrusion tube manufacturing method or Mannesmann tube manufacturing method, and when processing into a plate material, for example, a plate or coil is formed by hot rolling. To be processed.
- the hot working may be any kind of process.
- the final product is a pipe material.
- hot extrusion pipe production methods represented by the Eugene Sejurne method
- roll rolling pipe production methods Mannesmann pipe production methods
- Mannesmann plug mill method and the Mannesmann mandrel mill method can be mentioned.
- the final product is a plate material
- a typical method for producing thick plates and steel strips can be mentioned.
- the heating temperature before hot forging or hot rolling is preferably 900 to 1200 ° C. Since Ni is soft, the temperature is preferably 900 to 1100 ° C. Since good hot workability can be obtained under such temperature conditions, it is possible to suppress the occurrence of cracks during hot forging and surface cracks during hot rolling.
- the processing end temperature of the hot processing is not particularly specified! /, But should be 750 ° C or higher. This is because hot workability is lowered and ductility is impaired when the finishing temperature is less than 750 ° C.
- the blank pipe manufactured by the hot working is drawn.
- the cold-drawn pipe manufacturing method and the cold-rolled pipe manufacturing method using a cold pilger mill can be mentioned.
- the final product is a plate material
- a normal cold-rolled steel strip manufacturing method can be mentioned.
- a homogenization treatment may be performed for softening.
- the heating temperature for the homogenization heat treatment should be 900-1200 ° C.
- the softening heat treatment not only reduces the strength, but also promotes the fixation of carbon in the grains by precipitation of carbides such as TiC and NbC.
- carbides such as TiC and NbC.
- grain growth may occur at a high temperature, it is preferable to perform at a force of 750 to 950 ° C for selecting the annealing temperature in balance with the strength.
- alloy Nos.! To 8 are nickel metal materials whose chemical compositions are within the range defined by the present invention.
- Alloy No. 9 and Alloy No. 10 are comparative nickel materials whose chemical compositions deviate from the conditions defined in the present invention.
- FIG. 1 shows an observation result of an alloy No. 5 with an optical microscope as an example of a nickel material having a chemical composition within the range defined by the present invention.
- a large amount of TiC indicated by arrows in the figure precipitates in the grains, and carbon at the grain boundaries. No precipitation is observed.
- FIG. 2 shows the observation results of Alloy No. 10 using an optical microscope and a transmission electron microscope as an example of a comparative nickel material whose chemical composition deviates from the conditions specified in the present invention.
- Fig. 2 (a) shows the observation results with an optical microscope
- Fig. 2 (b) shows the observation results with a transmission electron microscope.
- the carbon deposited at the grain boundaries is indicated by arrows. From FIG. 2, in the case of the Nikkenore material of the comparative example whose chemical composition deviates from the conditions specified in the present invention, the precipitation of carbon at the grain boundaries is clearly observed.
- the nickel material for a chemical plant of the present invention has one or more content powers of Ti, Nb, V and Ta, which are elements having a stronger affinity for carbon than nickel, and a specific relationship with the carbon content. Since the carbon content is as low as C: 0.003-0.20%, the amount of carbon precipitated at the grain boundaries is greatly reduced, preventing deterioration of corrosion resistance and mechanical properties. This can be done with power S. For this reason, mechanical properties and corrosion resistance do not deteriorate even when used at high temperatures for long periods of time or under the influence of heat during welding. Suitable for use in various chemical plants such as caustic soda and chlor chloride manufacturing equipment. be able to.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Powder Metallurgy (AREA)
- Arc Welding In General (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020097008229A KR101119809B1 (ko) | 2006-10-20 | 2007-10-18 | 화학 플랜트용 니켈재 |
EP07830085.2A EP2077338B1 (en) | 2006-10-20 | 2007-10-18 | Nickel material for chemical plant |
CN2007800390123A CN101528958B (zh) | 2006-10-20 | 2007-10-18 | 化工设备用镍材 |
JP2008539869A JP5035250B2 (ja) | 2006-10-20 | 2007-10-18 | 化学プラント用ニッケル材 |
US12/385,723 US8986470B2 (en) | 2006-10-20 | 2009-04-17 | Nickel material for chemical plant |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2006-285718 | 2006-10-20 | ||
JP2006285718 | 2006-10-20 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US12/385,723 Continuation US8986470B2 (en) | 2006-10-20 | 2009-04-17 | Nickel material for chemical plant |
Publications (1)
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WO2008047869A1 true WO2008047869A1 (en) | 2008-04-24 |
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ID=39314087
Family Applications (1)
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PCT/JP2007/070351 WO2008047869A1 (en) | 2006-10-20 | 2007-10-18 | Nickel material for chemical plant |
Country Status (6)
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US (1) | US8986470B2 (ja) |
EP (1) | EP2077338B1 (ja) |
JP (1) | JP5035250B2 (ja) |
KR (1) | KR101119809B1 (ja) |
CN (1) | CN101528958B (ja) |
WO (1) | WO2008047869A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018066709A1 (ja) | 2016-10-07 | 2018-04-12 | 新日鐵住金株式会社 | ニッケル材及びニッケル材の製造方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111217759A (zh) | 2013-12-31 | 2020-06-02 | 阿达玛马克西姆股份有限公司 | 一种化合物及其制备方法 |
CN116121594A (zh) * | 2021-11-12 | 2023-05-16 | 江苏新华合金有限公司 | 一种纯镍棒材及其制备方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62250141A (ja) | 1986-04-23 | 1987-10-31 | Nippon Stainless Steel Co Ltd | ほう化処理用Ni基合金 |
JPS63168259A (ja) * | 1986-12-29 | 1988-07-12 | Sumitomo Metal Ind Ltd | 純ニツケルホツトコイルの製造方法 |
JPH02145333A (ja) * | 1988-11-28 | 1990-06-04 | Ngk Insulators Ltd | 電気回路用基板およびその製造方法 |
JPH02236250A (ja) | 1989-03-09 | 1990-09-19 | Nippon Kinzoku Kogyo Kk | 高硬度で低接触電気抵抗のNi合金 |
JPH08143996A (ja) * | 1994-11-24 | 1996-06-04 | Sumitomo Metal Ind Ltd | 熱間加工性に優れた電気機器用ニッケル |
JP3614006B2 (ja) | 1998-02-26 | 2005-01-26 | 株式会社日立製作所 | 非対称経路利用通信システム、および、非対称経路利用通信方法 |
JP2006057186A (ja) * | 2005-09-09 | 2006-03-02 | Hitachi Metals Ltd | ハンダ付け性に優れたニッケル材料帯の製造方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4023936A (en) * | 1976-06-14 | 1977-05-17 | Lukens Steel Company | Titanium clad steel and process for making |
SG87196A1 (en) * | 1999-12-21 | 2002-03-19 | Mitsui Chemicals Inc | Electrode and electrolyte for use in preparation of nitrogen trifluoride gas, and preparation method of nitrogen trifluoride gas by use of them |
JP4042362B2 (ja) * | 2000-08-11 | 2008-02-06 | 住友金属工業株式会社 | Ni基合金製品とその製造方法 |
JP2002060877A (ja) | 2000-08-16 | 2002-02-28 | Kawatetsu Mining Co Ltd | 導電ペースト用Ni合金粉 |
JP3960069B2 (ja) * | 2002-02-13 | 2007-08-15 | 住友金属工業株式会社 | Ni基合金管の熱処理方法 |
-
2007
- 2007-10-18 JP JP2008539869A patent/JP5035250B2/ja active Active
- 2007-10-18 WO PCT/JP2007/070351 patent/WO2008047869A1/ja active Application Filing
- 2007-10-18 EP EP07830085.2A patent/EP2077338B1/en active Active
- 2007-10-18 CN CN2007800390123A patent/CN101528958B/zh active Active
- 2007-10-18 KR KR1020097008229A patent/KR101119809B1/ko active IP Right Grant
-
2009
- 2009-04-17 US US12/385,723 patent/US8986470B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62250141A (ja) | 1986-04-23 | 1987-10-31 | Nippon Stainless Steel Co Ltd | ほう化処理用Ni基合金 |
JPS63168259A (ja) * | 1986-12-29 | 1988-07-12 | Sumitomo Metal Ind Ltd | 純ニツケルホツトコイルの製造方法 |
JPH02145333A (ja) * | 1988-11-28 | 1990-06-04 | Ngk Insulators Ltd | 電気回路用基板およびその製造方法 |
JPH02236250A (ja) | 1989-03-09 | 1990-09-19 | Nippon Kinzoku Kogyo Kk | 高硬度で低接触電気抵抗のNi合金 |
JPH08143996A (ja) * | 1994-11-24 | 1996-06-04 | Sumitomo Metal Ind Ltd | 熱間加工性に優れた電気機器用ニッケル |
JP3614006B2 (ja) | 1998-02-26 | 2005-01-26 | 株式会社日立製作所 | 非対称経路利用通信システム、および、非対称経路利用通信方法 |
JP2006057186A (ja) * | 2005-09-09 | 2006-03-02 | Hitachi Metals Ltd | ハンダ付け性に優れたニッケル材料帯の製造方法 |
Non-Patent Citations (2)
Title |
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JIS H, vol. 4552, 2000 |
See also references of EP2077338A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018066709A1 (ja) | 2016-10-07 | 2018-04-12 | 新日鐵住金株式会社 | ニッケル材及びニッケル材の製造方法 |
KR20190067837A (ko) | 2016-10-07 | 2019-06-17 | 닛폰세이테츠 가부시키가이샤 | 니켈재 및 니켈재의 제조 방법 |
US10767245B2 (en) | 2016-10-07 | 2020-09-08 | Nippon Steel Corporation | Nickel material and method for manufacturing nickel material |
Also Published As
Publication number | Publication date |
---|---|
EP2077338A1 (en) | 2009-07-08 |
US8986470B2 (en) | 2015-03-24 |
EP2077338B1 (en) | 2015-04-01 |
CN101528958B (zh) | 2011-01-26 |
KR101119809B1 (ko) | 2012-03-21 |
KR20090055046A (ko) | 2009-06-01 |
JP5035250B2 (ja) | 2012-09-26 |
EP2077338A4 (en) | 2014-07-30 |
JPWO2008047869A1 (ja) | 2010-02-25 |
CN101528958A (zh) | 2009-09-09 |
US20090269238A1 (en) | 2009-10-29 |
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