EP2809818B1 - Duplexstahl mit verbesserter kerbschlagzähigkeit und zerspanbarkeit - Google Patents
Duplexstahl mit verbesserter kerbschlagzähigkeit und zerspanbarkeit Download PDFInfo
- Publication number
- EP2809818B1 EP2809818B1 EP13701640.8A EP13701640A EP2809818B1 EP 2809818 B1 EP2809818 B1 EP 2809818B1 EP 13701640 A EP13701640 A EP 13701640A EP 2809818 B1 EP2809818 B1 EP 2809818B1
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- European Patent Office
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- weight
- duplex steel
- steel according
- duplex
- steel
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- 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.)
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- 229910000831 Steel Inorganic materials 0.000 title claims description 69
- 239000010959 steel Substances 0.000 title claims description 69
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 50
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 239000010949 copper Substances 0.000 claims description 20
- 229910052759 nickel Inorganic materials 0.000 claims description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 11
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 5
- 238000011109 contamination Methods 0.000 claims 1
- 230000007797 corrosion Effects 0.000 description 28
- 238000005260 corrosion Methods 0.000 description 28
- 229910045601 alloy Inorganic materials 0.000 description 27
- 239000000956 alloy Substances 0.000 description 27
- 239000011651 chromium Substances 0.000 description 25
- 239000011572 manganese Substances 0.000 description 24
- 229910001566 austenite Inorganic materials 0.000 description 16
- 238000005275 alloying Methods 0.000 description 14
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 13
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 13
- 229910052748 manganese Inorganic materials 0.000 description 13
- 229910052750 molybdenum Inorganic materials 0.000 description 13
- 239000011733 molybdenum Substances 0.000 description 13
- 229910052804 chromium Inorganic materials 0.000 description 10
- 229910000859 α-Fe Inorganic materials 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 229910000851 Alloy steel Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005266 casting Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910001039 duplex stainless steel Inorganic materials 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- -1 C 6 carbides Chemical class 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 241001295925 Gegenes Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- RQFRTWTXFAXGQQ-UHFFFAOYSA-N [Pb].[Mo] Chemical compound [Pb].[Mo] RQFRTWTXFAXGQQ-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- JZQOJFLIJNRDHK-CMDGGOBGSA-N alpha-irone Chemical compound CC1CC=C(C)C(\C=C\C(C)=O)C1(C)C JZQOJFLIJNRDHK-CMDGGOBGSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- VCTOKJRTAUILIH-UHFFFAOYSA-N manganese(2+);sulfide Chemical class [S-2].[Mn+2] VCTOKJRTAUILIH-UHFFFAOYSA-N 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 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
- C22C38/18—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
- C22C38/001—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
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
Definitions
- the present invention relates to a new duplex steel, in particular lean duplex steel, with improved notched impact strength and machinability.
- duplex steels are of particular importance on the stainless steel market. These are increasingly displaced by duplex steels.
- duplex steels Four main types of duplex steel are known today: standard duplex, super duplex, hyperduplex and lean duplex. The differences between these are the chemical composition as well as the different mechanical and corrosion properties.
- Duplex steels are based on a two-phase structure composed of approximately equal proportions of a ferrite ( ⁇ -iron) phase and an austenite ( ⁇ -iron) phase.
- the duplex steels are characterized by their combination of properties, the ferritic phase providing substantially high strength and stress corrosion cracking (SCC) resistance and the austenitic phase being responsible for ductility and general corrosion resistance.
- SCC stress corrosion cracking
- Duplex steels which are among the rust and acid resistant steels, have existed for more than 70 years.
- This alloy was developed in the forging sector to reduce alloying costs. By saving the alloying elements nickel and molybdenum, a duplex steel with comparable strength but reduced corrosion resistance was produced.
- the alloy is also suitable as a casting alloy.
- the nickel and molybdenum content in the alloy should be reduced, but at the same time the desired good properties for duplex steel should be achieved.
- a ferritic-austenitic stainless steel particularly a lean duplex steel, preferably a lean-duplex casting alloy, is provided which has improved impact strength and machinability.
- an alloy was made available according to the invention which, in addition to high strength, has a good notched impact strength even at low temperatures (for example -40 ° C.).
- the steel alloy according to the invention exhibits good weldability.
- the necessity and type of heat treatment after welding will depend on the chemical composition of the materials and consumables, the shape of the component, the wall thickness, the welding conditions, the strength properties, the extent of non-destructive testing and, if necessary, compliance with additional conditions.
- the steel provided according to the invention has good corrosion resistance.
- the equivalent for the resistance to pitting (abbreviated as PRE: p itting r esistance e equivalent), also referred to as "pitting”, is used to estimate the corrosion resistance of a nickel-containing alloy against pitting or crevice corrosion.
- Pitting corrosion generally refers to small-sized or punctiform corrosion spots in surfaces of metals that can significantly expand below the surface. Crevice corrosion is a locally accelerated corrosion and leads to the deposition of corrosion in the area of gaps (eg joint gaps). The ability of the steel to protect against this form of corrosion depends on different levels of alloying elements.
- duplex steel according to the invention has particularly good mechanical properties.
- the steel according to the invention can preferably be used where the duplex steel is advantageous due to its properties. These are, for example, areas where high strength, good weldability, good machinability, good notched impact strength, in particular also at low temperatures play a role. Only examples are: drum coats in centrifuges or decanter construction, pressure vessels, also in the form of welded construction, rolls for the chemical industry and the paper industry.
- alloying elements it is fundamentally to be distinguished whether they are carbide, austenite or ferrite formers, ie. H. for what purpose they are added to the steel.
- Each alloy element gives the steel specific properties depending on its content.
- Several alloying elements may increase the effect, if necessary, but may also have opposite effects and influence each other accordingly, so that a complex overall effect may result, which is not readily predictable.
- the presence of certain alloying elements in the steel creates only the prerequisite for a desired property, but only the processing and heat treatment shows the actual characteristics achieved.
- carbon is an optional ingredient. It is an element for stabilizing the austenite phase. Carbon as an alloying element in iron lowers the melting point, as an interstitial dissolved alloying element it increases the strength. As the carbon content increases, the danger of formation of M 23 C 6 carbides increases, which reduces ductility, toughness and corrosion resistance. Therefore, according to the invention less than 0.070 wt .-% carbon are used, preferably less than 0.050 wt%, more preferably less than 0.030 wt%, in order to improve the corrosion resistance.
- Silicon which is also only an optional component of the steel alloy of the present invention, is a ferrite stabilizer and serves as a deoxidizer. It has the disadvantageous effect of accelerating the formation of brittle intermetallic phases (sigma and similar phases) at higher contents and thereby reducing the ductility of the steel. Silicon increases strength and wear resistance, increases the fluidity of molten steel, and thereby reduces surface defects in casting. At high levels of silicon, the additive increases scale resistance, acid resistance and corrosion resistance. Silicon is therefore used according to the invention in a content ⁇ 1.5% by weight, preferably ⁇ 1.0% by weight, more preferably less than 0.50% by weight, in order to improve the toughness.
- Manganese is an austenitic stabilizer. It serves, for example, to increase the solubility of nitrogen. Manganese binds sulfur as manganese sulfides and thereby reduces the adverse influence of iron sulfide, has a deoxidizing effect during the melting of duplex stainless steels and serves to improve the hot workability of the steels. Manganese therefore has a favorable effect on forgeability and weldability. The yield strength, the strength and the wear resistance are increased by a manganese addition. Manganese increases the tensile strength and thus the load capacity. However, a large amount of manganese impairs corrosion resistance and facilitates the formation of the brittle intermetallic phases which are undesirable. Accordingly, according to the present invention, the manganese content is limited to ⁇ 1.0% by weight, more preferably less than 0.50% by weight, to improve the toughness. Manganese may also be completely absent as an optional ingredient in the steel of the present invention.
- chromium is an essential element, in particular with regard to the maintenance of the corrosion resistance and for the adjustment of the ferrite-austenite ratio. Chromium has a ferrite-stabilizing effect. If the chromium content is too high, there is an increased formation of intermetallic compounds such as the sigma phase, which results in embrittlement of the material. Chromium is therefore used in the duplex steel of the present invention in the range of 21.0 to 23.0 weight percent.
- Nickel is a cubic face-centered element, and therefore acts austenite-stabilizing in the area of the solution annealing temperature. It has a favorable effect on the toughness of the steel as it increases the stacking fault energy of the austenite. With increasing stacking fault energy, the mechanical and / or thermal transformation of austenite into martensite is made more difficult, thereby increasing the toughness of the steel. Excessively high nickel contents at specified chromium and molybdenum contents increase the austenite content and thus reduce the strength.
- the raw material price of nickel is relatively high compared to the other alloying elements and varies greatly, so that according to the invention other alloying elements are used as far as possible to replace nickel. According to the invention, therefore, a nickel content of 1.0 to 3.0 wt .-%, preferably 2.0 to 3.0 wt .-% is used.
- Copper is also a stabilizer of the austenite phase and also has a favorable influence on the corrosion resistance, especially in acidic media. Since the solubility of copper in the ferritic phase of the duplex steel decreases rapidly at low temperatures, a copper-rich phase precipitates in the ferrite. This increases the yield strength ratio. Furthermore, copper can reduce pitting corrosion resistance. According to the invention therefore a copper content of 1.0 to 3.0 wt .-%, preferably 1.5 to 2.5 wt .-% is used. Furthermore, copper such as nickel has a positive effect on the low temperature toughness.
- Nitrogen is an austenite former, i. H. it stabilizes the austenitic structure component. Nitrogen is usually interstitially dissolved in duplex steel, with 95% of the nitrogen being enriched in austenite. This leads to a strong lattice strain of the austenite and thus to a hardness increase of the austenitic phase and to an increase in strength of the duplex steel as a whole. This lattice strain of austenite leads to a reduction of toughness with decreasing temperature. With increasing contents of dissolved nitrogen, the resistance to perforation and crevice corrosion is also increased.
- the nitrogen content according to the invention is 0.10 to 0.30 wt .-%, preferably 0.15 to 0.25 wt .-%.
- Molybdenum is an optional ingredient in the duplex steel alloy of the present invention. Molybdenum serves to stabilize the ferritic phase. Molybdenum is a very large atom compared to iron. As a dissolved substitution atom, it therefore causes the yield strength and tensile strength to increase. The addition of molybdenum also improves corrosion resistance, especially in media containing chloride. Excessive levels of molybdenum lead to embrittlement of the steel during its production. Since the raw material prices for molybdenum are very high and volatile, only a low Mo content of ⁇ 0.5 wt .-% is used.
- the steel according to the invention preferably has substantially no further added constituents but only iron and unavoidable impurities.
- Unavoidable impurities are, for example, sulfur, phosphorus and the like.
- the duplex stainless steel according to the invention represents a cost effective alternative to austenitic steels, especially in the form of a lean duplex alloy, preferably lean duplex cast alloy, which has particularly good properties, such as improved impact strength, especially at low temperatures (for example -40 ° C), good machinability, high strength and good weldability without the need for post heat treatment.
- the duplex stainless steel, particularly in the form of a cast alloy, of the present invention is particularly useful in various applications Applications advantageous where a requirement profile is present, for which the steel according to the invention is particularly suitable.
- Table 1 melt C Si Mn P S Cr Ni Not a word Cu N C 39895 0.0 30 0.4 0 0.2 7 0.01 7 0.006 0 22.1 3 2.8 7 0.2 3 1,3 3 0.23 3 B 40674 0.0 27 0.2 6 0.3 6 0.02 3 0.007 8 22.2 2 2,4 3 0.1 9 1.5 7 0 2 2 D 24640 0.0 33 0.3 4 0.4 6 0.01 8 0.005 8 22.1 1 2,3 6 0.1 5 1.4 3 0.22 3
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 |
---|---|---|---|
DE102012100908A DE102012100908A1 (de) | 2012-02-03 | 2012-02-03 | Duplexstahl mit verbesserter Kerbschlagzähigkeit und Zerspanbarkeit |
PCT/EP2013/051721 WO2013113718A1 (de) | 2012-02-03 | 2013-01-30 | Duplexstahl mit verbesserter kerbschlagzähigkeit und zerspanbarkeit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2809818A1 EP2809818A1 (de) | 2014-12-10 |
EP2809818B1 true EP2809818B1 (de) | 2016-04-06 |
Family
ID=47624080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13701640.8A Active EP2809818B1 (de) | 2012-02-03 | 2013-01-30 | Duplexstahl mit verbesserter kerbschlagzähigkeit und zerspanbarkeit |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2809818B1 (zh) |
JP (1) | JP6322145B2 (zh) |
KR (1) | KR20140127843A (zh) |
CN (1) | CN104254627A (zh) |
DE (1) | DE102012100908A1 (zh) |
ES (1) | ES2581524T3 (zh) |
WO (1) | WO2013113718A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110331341A (zh) * | 2019-08-21 | 2019-10-15 | 攀钢集团攀枝花钢铁研究院有限公司 | 高成型性能高强度热镀锌双相钢及其生产方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1106501A (en) * | 1966-02-24 | 1968-03-20 | Crucible Steel Co America | Free machining stainless steels |
SE451465B (sv) * | 1984-03-30 | 1987-10-12 | Sandvik Steel Ab | Ferrit-austenitiskt rostfritt stal mikrolegerat med molybden och koppar och anvendning av stalet |
JPH0768603B2 (ja) * | 1989-05-22 | 1995-07-26 | 新日本製鐵株式会社 | 建築建材用二相ステンレス鋼 |
JPH05230535A (ja) * | 1991-07-16 | 1993-09-07 | Kubota Corp | 製紙機械用サクションロールの製法 |
SE517449C2 (sv) | 2000-09-27 | 2002-06-04 | Avesta Polarit Ab Publ | Ferrit-austenitiskt rostfritt stål |
JP4760032B2 (ja) * | 2004-01-29 | 2011-08-31 | Jfeスチール株式会社 | 成形性に優れるオーステナイト・フェライト系ステンレス鋼 |
EP1867748A1 (fr) * | 2006-06-16 | 2007-12-19 | Industeel Creusot | Acier inoxydable duplex |
EP2172574B1 (en) * | 2007-08-02 | 2019-01-23 | Nippon Steel & Sumikin Stainless Steel Corporation | Ferritic-austenitic stainless steel excellent in corrosion resistance and workability and process for manufacturing the same |
JP5156293B2 (ja) * | 2007-08-02 | 2013-03-06 | 新日鐵住金ステンレス株式会社 | 耐食性と加工性に優れたフェライト・オーステナイト系ステンレス鋼およびその製造方法 |
FI125458B (fi) | 2008-05-16 | 2015-10-15 | Outokumpu Oy | Ruostumaton terästuote, tuotteen käyttö ja menetelmä sen valmistamiseksi |
JP5288980B2 (ja) * | 2008-10-02 | 2013-09-11 | 新日鐵住金ステンレス株式会社 | 衝撃靭性に優れた二相ステンレス熱間圧延鋼材とその製造方法 |
JP5511208B2 (ja) * | 2009-03-25 | 2014-06-04 | 新日鐵住金ステンレス株式会社 | 耐食性の良好な省合金二相ステンレス鋼材とその製造方法 |
JP5366609B2 (ja) * | 2009-03-26 | 2013-12-11 | 新日鐵住金ステンレス株式会社 | 耐食性の良好な省合金二相ステンレス鋼材とその製造方法 |
JP5404280B2 (ja) * | 2009-09-25 | 2014-01-29 | 新日鐵住金ステンレス株式会社 | 溶接熱影響部の耐食性に優れた高強度省合金型二相ステンレス鋼 |
JP5406233B2 (ja) * | 2011-03-02 | 2014-02-05 | 新日鐵住金ステンレス株式会社 | 二相ステンレス鋼を合わせ材とするクラッド鋼板およびその製造方法 |
-
2012
- 2012-02-03 DE DE102012100908A patent/DE102012100908A1/de not_active Withdrawn
-
2013
- 2013-01-30 WO PCT/EP2013/051721 patent/WO2013113718A1/de active Application Filing
- 2013-01-30 CN CN201380006194.XA patent/CN104254627A/zh active Pending
- 2013-01-30 KR KR20147024454A patent/KR20140127843A/ko active Search and Examination
- 2013-01-30 ES ES13701640.8T patent/ES2581524T3/es active Active
- 2013-01-30 JP JP2014555177A patent/JP6322145B2/ja active Active
- 2013-01-30 EP EP13701640.8A patent/EP2809818B1/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110331341A (zh) * | 2019-08-21 | 2019-10-15 | 攀钢集团攀枝花钢铁研究院有限公司 | 高成型性能高强度热镀锌双相钢及其生产方法 |
Also Published As
Publication number | Publication date |
---|---|
CN104254627A (zh) | 2014-12-31 |
JP6322145B2 (ja) | 2018-05-09 |
EP2809818A1 (de) | 2014-12-10 |
KR20140127843A (ko) | 2014-11-04 |
ES2581524T3 (es) | 2016-09-06 |
WO2013113718A1 (de) | 2013-08-08 |
DE102012100908A1 (de) | 2013-08-08 |
JP2015511272A (ja) | 2015-04-16 |
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