JP5072285B2 - 二相ステンレス鋼 - Google Patents
二相ステンレス鋼 Download PDFInfo
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- JP5072285B2 JP5072285B2 JP2006215738A JP2006215738A JP5072285B2 JP 5072285 B2 JP5072285 B2 JP 5072285B2 JP 2006215738 A JP2006215738 A JP 2006215738A JP 2006215738 A JP2006215738 A JP 2006215738A JP 5072285 B2 JP5072285 B2 JP 5072285B2
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- 229910001039 duplex stainless steel Inorganic materials 0.000 title claims description 25
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- 229910052804 chromium Inorganic materials 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 6
- 229910052758 niobium Inorganic materials 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 65
- 239000010959 steel Substances 0.000 description 65
- 230000007797 corrosion Effects 0.000 description 18
- 238000005260 corrosion Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 12
- 229910000859 α-Fe Inorganic materials 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 239000000047 product Substances 0.000 description 9
- 229910052761 rare earth metal Inorganic materials 0.000 description 9
- 229910001220 stainless steel Inorganic materials 0.000 description 9
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 8
- 239000013078 crystal Substances 0.000 description 8
- 230000007704 transition Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000007711 solidification Methods 0.000 description 7
- 230000008023 solidification Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 6
- 238000007670 refining Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910001566 austenite Inorganic materials 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010612 desalination reaction Methods 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- 229910052747 lanthanoid Inorganic materials 0.000 description 2
- 150000002602 lanthanoids Chemical class 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910004261 CaF 2 Inorganic materials 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- -1 and V: 0.05 to 1.0% Substances 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/005—Manufacture of stainless steel
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0006—Adding metallic additives
-
- 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
-
- 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
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous 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
- C22C38/001—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
- C22C38/002—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
- C22C38/02—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
- 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
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Steel (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Description
Nを0.10%以上含有する二相ステンレス鋼においてTiおよびMg添加の溶製実験、耐火物あるいはスラグからMgを還元する精錬実験により鋳塊を作成し、この鋳塊の凝固組織の観察と鋳塊に熱間圧延をおこなって得られた厚手鋼板の衝撃特性評価を繰り返した結果、本発明を得た。
質量%で、C:0.06%以下,Si:0.05〜3.0%,Mn:0.1〜6.0%,P:0.05%以下,S:0.010%以下,Ni:1.0〜10.0%,Cr:18〜30%,Mo:5.0%以下,Cu:3.0%以下,N:0.10〜0.40%,Al:0.001〜0.08%,Ti:0.003〜0.05%,Mg:0.0001〜0.0030%,O:0.010%以下を含有し、かつ(1)式で示すfNとTi含有量とN含有量の積:fN×Ti×Nが0.00004%2以上であり、かつTi含有量とN含有量の積:Ti×Nが0.008%2以下で、必要に応じてV:0.05〜1.0%,Nb:0.01〜0.20%、W:0.05〜3.0%,Co:0.05〜1.0%のうちの1種または2種以上を含有し残部がFeおよび不可避的不純物よりなることを特徴とする二相ステンレス鋼であり、
さらには質量%で、C:0.06%以下,Si:0.05〜3.0%,Mn:0.1〜6.0%,P:0.05%以下,S:0.0020%以下,Ni:1.0〜10.0%,Cr:18〜30%,Mo:5.0%以下,Cu:3.0%以下,N:0.10〜0.40%,Al:0.010〜0.08%,Ti:0.003〜0.05%,Mg:0.0001〜0.0030%,O:0.007%以下を含有し、かつ(1)式で示すfNとTi含有量とN含有量の積:fN×Ti×Nが0.00004%2以上であり、かつTi含有量とN含有量の積:Ti×Nが0.008%2以下で、さらにB:0.0005〜0.0050%,Ca:0.0005〜0.0050%,REM:0.005〜0.10%のうちの1種または2種以上を含有し、残部がFeおよび不可避的不純物よりなることを特徴とする熱間加工性に優れる二相ステンレス鋼であり、さらに必要に応じてV:0.05〜1.0%,Nb:0.01〜0.20%、W:0.05〜3.0%,Co:0.05〜1.0%のうちの1種または2種以上を含有することを特徴とする熱間加工性に優れた二相ステンレス鋼である。
ここでfNは下記(1)式を満たす数値である。
log10fN=−0.046×Cr−0.02×Mn−0.011×Mo
+0.048×Si+0.007×Ni+0.009×Cu (1)
各元素は その含有量(%)を表す。
Claims (4)
- 質量%で、C:0.06%以下,Si:0.05〜3.0%,Mn:0.1〜6.0%,P:0.05%以下,S:0.010%以下,Ni:1.0〜10.0%,Cr:18〜30%,Mo:5.0%以下,Cu:3.0%以下,N:0.10〜0.40%,Al:0.001〜0.08%,Ti:0.003〜0.05%,Mg:0.0001〜0.0030%,O:0.010%以下を含有し、かつfNとTi含有量とN含有量の積:fN×Ti×Nが0.00004%2以上であり、かつTi含有量とN含有量の積:Ti×Nが0.008%2以下で、残部がFeおよび不可避的不純物よりなることを特徴とする二相ステンレス鋼。
ここでfNは下記(1)式を満たす数値である。
log10fN=−0.046×Cr−0.02×Mn−0.011×Mo
+0.048×Si+0.007×Ni+0.009×Cu (1)
各元素は その含有量(%)を表す。 - 請求項1に加えてさらにV:0.05〜1.0%,Nb:0.01〜0.20%,W:0.05〜3.0%,Co:0.05〜1.0%のうちの1種または2種以上を含有することを特徴とする二相ステンレス鋼。
- 質量%で、C:0.06%以下,Si:0.05〜3.0%,Mn:0.1〜6.0%,P:0.05%以下,S:0.0020%以下,Ni:1.0〜10.0%,Cr:18〜30%,Mo:5.0%以下,Cu:3.0%以下,N:0.10〜0.40%,Al:0.010〜0.08%,Ti:0.003〜0.05%,Mg:0.0001〜0.0030%,O:0.010%以下を含有し、かつfNとTi含有量とN含有量の積:fN×Ti×Nが0.00004%2以上であり、かつTi含有量とN含有量の積:Ti×Nが0.008%2以下で、さらにB:0.0005〜0.0050%,Ca:0.0005〜0.0050%,REM:0.005〜0.10%のうちの1種または2種以上を含有し、残部がFeおよび不可避的不純物よりなることを特徴とする熱間加工性に優れる二相ステンレス鋼。
ここで fNは上記(1)式の関係式を満たす数値である。 - 請求項3に加えてさらにV:0.05〜1.0%,Nb:0.01〜0.20%,W:0.05〜3.0%,Co:0.05〜1.0%のうちの1種または2種以上を含有することを特徴とする熱間加工性に優れる二相ステンレス鋼。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006215738A JP5072285B2 (ja) | 2006-08-08 | 2006-08-08 | 二相ステンレス鋼 |
PCT/JP2007/062471 WO2008018242A1 (ja) | 2006-08-08 | 2007-06-14 | 二相ステンレス鋼 |
US11/991,671 US8778260B2 (en) | 2006-08-08 | 2007-06-14 | Duplex stainless steel |
EP07745544A EP2050832B1 (en) | 2006-08-08 | 2007-06-14 | Two-phase stainless steel |
CN200780000957.4A CN101346486B9 (zh) | 2006-08-08 | 2007-06-14 | 双相不锈钢 |
KR1020087006096A KR20080038217A (ko) | 2006-08-08 | 2007-06-14 | 2상 스테인리스 강 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006215738A JP5072285B2 (ja) | 2006-08-08 | 2006-08-08 | 二相ステンレス鋼 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008038214A JP2008038214A (ja) | 2008-02-21 |
JP5072285B2 true JP5072285B2 (ja) | 2012-11-14 |
Family
ID=39032779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006215738A Active JP5072285B2 (ja) | 2006-08-08 | 2006-08-08 | 二相ステンレス鋼 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8778260B2 (ja) |
EP (1) | EP2050832B1 (ja) |
JP (1) | JP5072285B2 (ja) |
KR (1) | KR20080038217A (ja) |
CN (1) | CN101346486B9 (ja) |
WO (1) | WO2008018242A1 (ja) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103498113B (zh) * | 2008-03-26 | 2016-03-09 | 新日铁住金不锈钢株式会社 | 焊接热影响区的耐蚀性和韧性良好的合金节省型双相不锈钢 |
FI125458B (fi) * | 2008-05-16 | 2015-10-15 | Outokumpu Oy | Ruostumaton terästuote, tuotteen käyttö ja menetelmä sen valmistamiseksi |
WO2009145347A1 (ja) | 2008-05-27 | 2009-12-03 | 新日鐵住金ステンレス株式会社 | 凝固結晶粒を微細にする二相ステンレス鋼溶接用フラックス入りワイヤ |
JP5546178B2 (ja) * | 2008-08-04 | 2014-07-09 | 新日鐵住金ステンレス株式会社 | 耐鋳塊割れ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 |
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 |
JP5335503B2 (ja) * | 2009-03-19 | 2013-11-06 | 新日鐵住金ステンレス株式会社 | プレス成形性に優れた二相ステンレス鋼板 |
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 |
JP5361489B2 (ja) * | 2009-03-26 | 2013-12-04 | 新日鐵住金ステンレス株式会社 | 耐鋳塊割れ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鋼板の製造方法 |
EP2476771B1 (en) * | 2009-09-10 | 2015-03-04 | Nippon Steel & Sumitomo Metal Corporation | Two-phase stainless steel |
JP5398574B2 (ja) * | 2010-02-18 | 2014-01-29 | 新日鐵住金ステンレス株式会社 | 真空容器用二相ステンレス鋼材とその製造方法 |
JP5656435B2 (ja) * | 2010-03-30 | 2015-01-21 | 新日鐵住金ステンレス株式会社 | イヤリングの小さいプレス成形用フェライト・オーステナイト系ステンレス鋼板およびその製造方法 |
WO2012004464A1 (fr) | 2010-07-07 | 2012-01-12 | Arcelormittal Investigación Y Desarrollo Sl | Acier inoxydable austéno-ferritique à usinabilité améliorée |
EP3693121B8 (en) | 2011-01-27 | 2022-04-13 | NIPPON STEEL Stainless Steel Corporation | Clad steel plate having duplex stainless steel as cladding material therefor, and production method for same |
EP2676763B1 (en) * | 2011-02-14 | 2018-01-17 | Nippon Steel & Sumitomo Metal Corporation | Line pipe having a welded joint of duplex stainless steel |
MX355892B (es) * | 2011-02-14 | 2018-05-04 | Nippon Steel & Sumitomo Metal Corp | Acero inoxidable dúplex y método para la producción del mismo. |
JP5868206B2 (ja) * | 2011-03-09 | 2016-02-24 | 新日鐵住金ステンレス株式会社 | 溶接部耐食性に優れた二相ステンレス鋼 |
MY180070A (en) | 2011-05-26 | 2020-11-20 | United Pipelines Asia Pacific Pte Ltd | Austenitic stainless steel |
AU2012305447B2 (en) | 2011-09-06 | 2015-07-16 | Nippon Steel Corporation | Two-phase stainless steel |
KR20130034349A (ko) | 2011-09-28 | 2013-04-05 | 주식회사 포스코 | 내식성 및 열간가공성이 우수한 저합금 듀플렉스 스테인리스강 |
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