MX2022012281A - Material de acero. - Google Patents
Material de acero.Info
- Publication number
- MX2022012281A MX2022012281A MX2022012281A MX2022012281A MX2022012281A MX 2022012281 A MX2022012281 A MX 2022012281A MX 2022012281 A MX2022012281 A MX 2022012281A MX 2022012281 A MX2022012281 A MX 2022012281A MX 2022012281 A MX2022012281 A MX 2022012281A
- Authority
- MX
- Mexico
- Prior art keywords
- less
- steel material
- î1⁄4m
- sulfide
- circle
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 3
- 239000000463 material Substances 0.000 title abstract 3
- 239000010959 steel Substances 0.000 title abstract 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 2
- 229910052761 rare earth metal Inorganic materials 0.000 abstract 2
- 239000012535 impurity Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 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
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- 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
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
- C21D1/22—Martempering
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
-
- 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
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
-
- 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
- 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
-
- 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
- C21D9/085—Cooling or quenching
-
- 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
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
-
- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/18—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
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- 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
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- 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
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
Landscapes
- 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)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Se proporciona un material de acero que tiene una excelente resistencia al SSC. El material de acero de la presente descripción incluye una composición química que consiste de, % en masa, C: 0.035% o menos, Si: 1.00% o menos, Mn: 1.00% o menos, P: 0.030% o menos, S: 0.0050% o menos, sol. Al: 0.005 a 0.100%, N: 0.001 a 0.020%, Ni: 5.00 a 7.00%, Cr: 10.00 a 14.00%, Cu: 1.50 a 3.50%, Mo: 1.00 a 4.00%, V: 0.01 a 1.00%, Ti: 0.02 a 0.30%, Co: 0.01 a 0.50%, Ca: 0.0003 a 0.0030%, O: 0.0050% o menos, W: 0 a 1.50%, Nb: 0 a 0.50%, B: 0 a 0.0050%, Mg: 0 a 0.0050%, y metales de tierras raras (REM): 0 a 0.020%, siendo el resto Fe e impurezas, en el que una densidad numérica total de sulfuro de Mn con un diámetro circular equivalente de 1.0 µm o más y de sulfuro de Ca con un diámetro circular equivalente de 2.0 µm o más es de 0.50 piezas/mm2 o menos.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2020/014975 WO2021199368A1 (ja) | 2020-04-01 | 2020-04-01 | 鋼材 |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2022012281A true MX2022012281A (es) | 2022-10-27 |
Family
ID=77929911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2022012281A MX2022012281A (es) | 2020-04-01 | 2020-04-01 | Material de acero. |
Country Status (7)
Country | Link |
---|---|
US (1) | US20230175107A1 (es) |
EP (1) | EP4130317A4 (es) |
JP (1) | JP7364962B2 (es) |
CN (1) | CN115698358B (es) |
BR (1) | BR112022019162A2 (es) |
MX (1) | MX2022012281A (es) |
WO (1) | WO2021199368A1 (es) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20240018636A1 (en) * | 2021-01-28 | 2024-01-18 | Nippon Steel Corporation | Steel material |
WO2023054586A1 (ja) * | 2021-10-01 | 2023-04-06 | 日本製鉄株式会社 | マルテンサイト系ステンレス鋼管 |
JP7239086B1 (ja) * | 2021-10-01 | 2023-03-14 | 日本製鉄株式会社 | マルテンサイト系ステンレス鋼管 |
WO2023074657A1 (ja) * | 2021-10-26 | 2023-05-04 | 日本製鉄株式会社 | マルテンサイト系ステンレス丸鋼 |
WO2024063108A1 (ja) * | 2022-09-21 | 2024-03-28 | 日本製鉄株式会社 | マルテンサイト系ステンレス鋼材 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5496421A (en) * | 1993-10-22 | 1996-03-05 | Nkk Corporation | High-strength martensitic stainless steel and method for making the same |
JP3444008B2 (ja) | 1995-03-10 | 2003-09-08 | 住友金属工業株式会社 | 耐炭酸ガス腐食性及び耐硫化物応力腐食割れ性の優れたマルテンサイトステンレス鋼 |
JP3598771B2 (ja) * | 1996-12-19 | 2004-12-08 | 住友金属工業株式会社 | 熱間加工性及び耐硫化物応力割れ性に優れたマルテンサイト系ステンレス鋼及びその分塊圧延方法並びにこれらを用いた継目無鋼管及びその製造方法 |
JP2000192196A (ja) | 1998-12-22 | 2000-07-11 | Sumitomo Metal Ind Ltd | 油井用マルテンサイト系ステンレス鋼 |
JP4035919B2 (ja) * | 1999-04-27 | 2008-01-23 | 住友金属工業株式会社 | 表面品質に優れたマルテンサイト系ステンレス鋼継目無鋼管 |
JP2002161312A (ja) * | 2000-11-21 | 2002-06-04 | Nkk Corp | 高靭性高クロム鋼板の製造方法 |
JP2003003243A (ja) * | 2001-06-22 | 2003-01-08 | Sumitomo Metal Ind Ltd | 耐炭酸ガス腐食性および耐硫化物応力腐食割れ性に優れた高強度マルテンサイトステンレス鋼 |
AR042494A1 (es) * | 2002-12-20 | 2005-06-22 | Sumitomo Chemical Co | Acero inoxidable martensitico de alta resistencia con excelentes propiedades de resistencia a la corrosion por dioxido de carbono y resistencia a la corrosion por fisuras por tensiones de sulfuro |
JP5582307B2 (ja) | 2010-12-27 | 2014-09-03 | Jfeスチール株式会社 | 油井用高強度マルテンサイト系ステンレス継目無鋼管 |
ES2690121T3 (es) * | 2012-06-20 | 2018-11-19 | Nippon Steel & Sumitomo Metal Corporation | Acero para tubo de pozo de petróleo, tubo de pozo de petróleo, y método para producir el mismo |
JP5861786B2 (ja) * | 2013-01-16 | 2016-02-16 | Jfeスチール株式会社 | 油井用ステンレス継目無鋼管およびその製造方法 |
JP6193206B2 (ja) * | 2013-12-11 | 2017-09-06 | 株式会社神戸製鋼所 | 耐サワー性、haz靭性及びhaz硬さに優れた鋼板およびラインパイプ用鋼管 |
MX2016015099A (es) * | 2014-05-21 | 2017-02-22 | Jfe Steel Corp | Tuberia de acero inoxidable sin costura de alta resistencia para productos tubulares de region petrolifera y metodo para la fabricacion de la misma. |
JP6229640B2 (ja) * | 2014-11-14 | 2017-11-15 | Jfeスチール株式会社 | 継目無鋼管およびその製造方法 |
JP6596954B2 (ja) * | 2015-06-12 | 2019-10-30 | 日本製鉄株式会社 | 継目無鋼管及びその製造方法 |
RU2710808C1 (ru) * | 2016-05-20 | 2020-01-14 | Ниппон Стил Корпорейшн | Стальной сортовой прокат для скважинного элемента и скважинный элемент |
CN110462085A (zh) * | 2017-03-28 | 2019-11-15 | 日本制铁株式会社 | 马氏体不锈钢材 |
JP7264596B2 (ja) * | 2018-03-19 | 2023-04-25 | 日本製鉄株式会社 | 鋼材 |
CN112166205A (zh) * | 2018-05-25 | 2021-01-01 | 杰富意钢铁株式会社 | 油井管用马氏体系不锈钢无缝钢管及其制造方法 |
-
2020
- 2020-04-01 MX MX2022012281A patent/MX2022012281A/es unknown
- 2020-04-01 JP JP2022511431A patent/JP7364962B2/ja active Active
- 2020-04-01 WO PCT/JP2020/014975 patent/WO2021199368A1/ja unknown
- 2020-04-01 BR BR112022019162A patent/BR112022019162A2/pt unknown
- 2020-04-01 CN CN202080101344.5A patent/CN115698358B/zh active Active
- 2020-04-01 EP EP20928920.6A patent/EP4130317A4/en active Pending
- 2020-04-01 US US17/906,664 patent/US20230175107A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
CN115698358B (zh) | 2023-08-29 |
JPWO2021199368A1 (es) | 2021-10-07 |
EP4130317A4 (en) | 2023-05-17 |
EP4130317A1 (en) | 2023-02-08 |
BR112022019162A2 (pt) | 2022-11-22 |
US20230175107A1 (en) | 2023-06-08 |
WO2021199368A1 (ja) | 2021-10-07 |
JP7364962B2 (ja) | 2023-10-19 |
CN115698358A (zh) | 2023-02-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
MX2022012281A (es) | Material de acero. | |
IN2014DN08225A (es) | ||
MX2019011443A (es) | Producto de acero inoxidable martensitico. | |
SE0302581D0 (sv) | Ståltråd för koldioxidbågsvetsning samt svetsmetod med utnyttjande av tråden | |
TW200632113A (en) | A steel with sulfuric acid dew-point corrosion resistance | |
UA99827C2 (ru) | Сталь низкой плотности с хорошей способностью к штамповке, стальной лист, способ его изготовления и применения | |
WO2004072308A3 (en) | Fine-grained martensitic stainless steel and method thereof | |
TW200741016A (en) | Brake disks having high temper softening resistance | |
MXPA02006786A (es) | Metodo para la homogeneizacion de la textura del acero, aleacion homogeneizada de la textura para el acero y metodo para producir la aleacion homogeneizadora. de la textura. | |
MX2010001110A (es) | Hoja de acero de alta resistencia. | |
MX2016001050A (es) | Material de acero de alta resistencia para pozo de petroleo y tuberias de pozo de petroleo. | |
CA2572131A1 (en) | Powder metallurgical composition comprising carbon black as flow enhancing agent | |
UA93587C2 (ru) | Двухфазная НЕРЖАВЕЮЩАЯ легированная сталь и EE ПРИМЕНЕНИе | |
RU2011131534A (ru) | Износостойкий сплав | |
WO2009044758A1 (ja) | 高強度Cr-Ni合金材およびそれを用いた油井用継目無管 | |
EP3216890A3 (en) | Mold steel and mold | |
MY181980A (en) | Soft magnetic alloy for magnetic recording, sputtering target material, and magnetic recording medium | |
MY189259A (en) | Vibration-damping ferritic stainless steel material, and production method | |
MX2019011670A (es) | Lamina de acero inoxidable ferritico, metodo para producir la misma y miembro de escape. | |
HK1139188A1 (en) | Lead free free-cutting steel and its use | |
MX2020005891A (es) | Aceros inoxidables duplex y sus usos. | |
MX2020010540A (es) | Material de acero adecuado para su uso en un ambiente acido. | |
MX2017014504A (es) | Acero para muelles. | |
TWI456068B (zh) | 蓄電池用容器材料 | |
TW200510548A (en) | Sulfur-containing free-cutting steel |