US20260117354A1 - Ferritic-austenitic duplex stainless steel material - Google Patents

Ferritic-austenitic duplex stainless steel material

Info

Publication number
US20260117354A1
US20260117354A1 US18/993,885 US202318993885A US2026117354A1 US 20260117354 A1 US20260117354 A1 US 20260117354A1 US 202318993885 A US202318993885 A US 202318993885A US 2026117354 A1 US2026117354 A1 US 2026117354A1
Authority
US
United States
Prior art keywords
stainless steel
less
duplex stainless
steel material
ferritic
Prior art date
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.)
Pending
Application number
US18/993,885
Other languages
English (en)
Inventor
Naoki Hirakawa
Eiichiro Ishimaru
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Stainless Steel Corp
Original Assignee
Nippon Steel Stainless Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Steel Stainless Steel Corp filed Critical Nippon Steel Stainless Steel Corp
Publication of US20260117354A1 publication Critical patent/US20260117354A1/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C21D1/26—Methods of annealing
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0273—Final recrystallisation annealing
    • 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
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • 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
    • C22C38/004—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
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • 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
    • C22C38/42—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
    • 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
    • C22C38/18—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
    • 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
    • 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
    • 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

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)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)
  • Hard Magnetic Materials (AREA)
US18/993,885 2022-11-14 2023-09-21 Ferritic-austenitic duplex stainless steel material Pending US20260117354A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2022182027 2022-11-14
JP2022-182027 2022-11-14
JP2023-034876 2023-03-07
JP2023034876 2023-03-07
PCT/JP2023/034357 WO2024106010A1 (ja) 2022-11-14 2023-09-21 フェライト・オーステナイト系二相ステンレス鋼材

Publications (1)

Publication Number Publication Date
US20260117354A1 true US20260117354A1 (en) 2026-04-30

Family

ID=91084348

Family Applications (1)

Application Number Title Priority Date Filing Date
US18/993,885 Pending US20260117354A1 (en) 2022-11-14 2023-09-21 Ferritic-austenitic duplex stainless steel material

Country Status (7)

Country Link
US (1) US20260117354A1 (https=)
EP (1) EP4534716A4 (https=)
JP (1) JPWO2024106010A1 (https=)
KR (1) KR20250025434A (https=)
CN (1) CN119403948A (https=)
TW (1) TWI876581B (https=)
WO (1) WO2024106010A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119876790B (zh) * 2025-03-28 2025-07-18 福建青拓特钢技术研究有限公司 一种冷镦用高表面质量的双相不锈钢盘条及其制造方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2540282B2 (ja) * 1993-07-28 1996-10-02 日本冶金工業株式会社 超塑性２相ステンレス鋼
JP3463500B2 (ja) * 1997-02-07 2003-11-05 Ｊｆｅスチール株式会社 延性に優れたフェライト系ステンレス鋼およびその製造方法
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
JP5213386B2 (ja) * 2007-08-29 2013-06-19 新日鐵住金ステンレス株式会社 成形性に優れたフェライト・オーステナイト系ステンレス鋼薄板及びその製造方法
JP5337473B2 (ja) * 2008-02-05 2013-11-06 新日鐵住金ステンレス株式会社 耐リジング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板およびその製造方法
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
JP6056132B2 (ja) 2010-11-25 2017-01-11 Ｊｆｅスチール株式会社 燃料タンク用オーステナイト・フェライト系二相ステンレス鋼
KR101632516B1 (ko) * 2011-10-21 2016-06-21 닛폰 스틸 앤드 스미킨 스테인레스 스틸 코포레이션 2상 스테인리스강, 2상 스테인리스강 주조편 및 2상 스테인리스강 강재
JP6628561B2 (ja) * 2015-11-09 2020-01-08 日鉄ステンレス株式会社 加工性に優れた構造部材用ステンレス鋼板及びその製造方法
KR101746404B1 (ko) 2015-12-23 2017-06-14 주식회사 포스코 내식성 및 가공성이 향상된 린 듀플렉스 스테인리스강 및 이의 제조 방법
ITUB20159411A1 (it) 2015-12-28 2017-06-28 Stellar Project S R L Sistema di puntamento stabilizzato compatto

Also Published As

Publication number Publication date
WO2024106010A1 (ja) 2024-05-23
TWI876581B (zh) 2025-03-11
JPWO2024106010A1 (https=) 2024-05-23
EP4534716A1 (en) 2025-04-09
TW202419643A (zh) 2024-05-16
CN119403948A (zh) 2025-02-07
EP4534716A4 (en) 2026-02-18
KR20250025434A (ko) 2025-02-21

Similar Documents

Publication Publication Date Title
JP3504560B2 (ja) 形状凍結性が良好で成形性に優れた高強度熱延鋼板
KR102205432B1 (ko) 강판 및 도금 강판
EP3889283B1 (en) High-strength steel sheet and method for producing the same
EP2765211B1 (en) High-tensile-strength hot-rolled steel sheet and method for producing same
JP5363922B2 (ja) 伸びと伸びフランジ性のバランスに優れた高強度冷延鋼板
CN111094612B (zh) 热轧钢板及其制造方法
JP5829977B2 (ja) 降伏強度と成形性に優れた高強度冷延鋼板およびその製造方法
JP5076394B2 (ja) 高張力鋼板ならびにその製造方法
WO2017212885A1 (ja) 成形性に優れた高強度冷延鋼板及びその製造方法
EP4265765A1 (en) High strength steel sheet having excellent workability and method for manufacturing same
JP2010018862A (ja) 耐水素脆化特性および加工性に優れた高強度冷延鋼板
US20230399728A1 (en) Austenite stainless steel material, method for producing same, and plate spring
CN117716060A (zh) 高强度钢板、高强度镀覆钢板及它们的制造方法及部件
EP4265771A1 (en) High strength steel sheet having excellent workability and method for manufacturing same
KR102539588B1 (ko) 내수소 취성이 우수한 Cr계 스테인리스 강판
JP2024123156A (ja) 耐疲労き裂伝播特性に優れた鋼材の製造方法
KR102286270B1 (ko) 고강도 냉연 강판과 그의 제조 방법
JP2022181634A (ja) オーステナイト系ステンレス鋼材及びその製造方法、並びに加工製品
US20260117354A1 (en) Ferritic-austenitic duplex stainless steel material
KR20240055008A (ko) 오스테나이트계 스테인리스 강판 및 그 제조 방법, 그리고 판 스프링
JP6524978B2 (ja) 高強度鋼板およびその製造方法
JP6524977B2 (ja) 高強度鋼板およびその製造方法
JP6123551B2 (ja) 耐疲労性およびスリット加工後の形状凍結性に優れた高強度熱延鋼板およびその製造方法
JP2020012173A (ja) 鋼材
US20250333812A1 (en) Austenite stainless steel and manufacturing method therefor