AR127220A1 - Material de acero inoxidable dúplex - Google Patents

Material de acero inoxidable dúplex

Info

Publication number
AR127220A1
AR127220A1 ARP220102665A ARP220102665A AR127220A1 AR 127220 A1 AR127220 A1 AR 127220A1 AR P220102665 A ARP220102665 A AR P220102665A AR P220102665 A ARP220102665 A AR P220102665A AR 127220 A1 AR127220 A1 AR 127220A1
Authority
AR
Argentina
Prior art keywords
stainless steel
steel material
duplex stainless
gas
supercritical
Prior art date
Application number
ARP220102665A
Other languages
English (en)
Inventor
Daisuke Matsuo
Yuji Arai
Original Assignee
Nippon 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 Corp filed Critical Nippon Steel Corp
Publication of AR127220A1 publication Critical patent/AR127220A1/es

Links

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
    • 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Un material de acero inoxidable dúplex que tiene excelente resistencia a la corrosión general y resistencia a la corrosión por picadura en un ambiente corrosivo supercrítico en el cual se encuentran contenidos gas SOX y gas O₂ en un gas CO₂ supercrítico. Un material de acero inoxidable dúplex de la presente divulgación tiene la composición química descrita en la descripción, y en el material de acero inoxidable dúplex, con una condición previa de que el contenido de cada elemento se encuentra dentro de un rango descrito en la descripción, Fn definida por la fórmula (1) es de 57.0 o más, y un número total de sulfuros de Mn por 1 mm² con un diámetro circular equivalente de 1.0 mm o más y sulfuros de Ca con un diámetro circular equivalente de 2.0 mm o más es de 0.50 /mm² o menos. Fn = Cr + 3.3 (Mo + 0.5 W) + 16 N + 2 Ni + Cu + 2 Co + 10 Sn¼(1) En donde, en la fórmula (1), cada símbolo de un elemento se sustituye por un contenido en % de masa de un elemento correspondiente.
ARP220102665A 2021-10-04 2022-09-30 Material de acero inoxidable dúplex AR127220A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021163436 2021-10-04

Publications (1)

Publication Number Publication Date
AR127220A1 true AR127220A1 (es) 2023-12-27

Family

ID=85803470

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP220102665A AR127220A1 (es) 2021-10-04 2022-09-30 Material de acero inoxidable dúplex

Country Status (2)

Country Link
AR (1) AR127220A1 (es)
WO (1) WO2023058631A1 (es)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2500162B2 (ja) 1991-11-11 1996-05-29 住友金属工業株式会社 耐食性に優れた高強度二相ステンレス鋼
JPH09195003A (ja) 1996-01-08 1997-07-29 Sumitomo Metal Mining Co Ltd 二相ステンレス鋼
JP6405078B2 (ja) * 2012-05-07 2018-10-17 株式会社神戸製鋼所 二相ステンレス鋼材および二相ステンレス鋼管
JP2016216816A (ja) * 2015-05-22 2016-12-22 株式会社神戸製鋼所 二相ステンレス鋼材、二相ステンレス鋼管及び二相ステンレス鋼材の表面処理方法
WO2018131412A1 (ja) * 2017-01-10 2018-07-19 Ｊｆｅスチール株式会社 二相ステンレス鋼およびその製造方法

Also Published As

Publication number Publication date
WO2023058631A1 (ja) 2023-04-13

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