EP4726065A1 - Acier inoxydable martensitique - Google Patents

Acier inoxydable martensitique

Info

Publication number
EP4726065A1
EP4726065A1 EP24205752.9A EP24205752A EP4726065A1 EP 4726065 A1 EP4726065 A1 EP 4726065A1 EP 24205752 A EP24205752 A EP 24205752A EP 4726065 A1 EP4726065 A1 EP 4726065A1
Authority
EP
European Patent Office
Prior art keywords
steel
martensitic stainless
tmcp
steels
mpa
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
EP24205752.9A
Other languages
German (de)
English (en)
Inventor
Jouko Leinonen
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.)
Solu Stainless Oy
Original Assignee
Solu Stainless Oy
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 Solu Stainless Oy filed Critical Solu Stainless Oy
Priority to EP24205752.9A priority Critical patent/EP4726065A1/fr
Priority to PCT/FI2025/050506 priority patent/WO2026078305A1/fr
Publication of EP4726065A1 publication Critical patent/EP4726065A1/fr
Pending legal-status Critical Current

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
    • 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
    • C22C38/02—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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • 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
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/58—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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite
    • 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
    • C21D8/0226—Hot rolling

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)
EP24205752.9A 2024-10-10 2024-10-10 Acier inoxydable martensitique Pending EP4726065A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP24205752.9A EP4726065A1 (fr) 2024-10-10 2024-10-10 Acier inoxydable martensitique
PCT/FI2025/050506 WO2026078305A1 (fr) 2024-10-10 2025-09-29 Acier inoxydable martensitique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP24205752.9A EP4726065A1 (fr) 2024-10-10 2024-10-10 Acier inoxydable martensitique

Publications (1)

Publication Number Publication Date
EP4726065A1 true EP4726065A1 (fr) 2026-04-15

Family

ID=93099694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24205752.9A Pending EP4726065A1 (fr) 2024-10-10 2024-10-10 Acier inoxydable martensitique

Country Status (2)

Country Link
EP (1) EP4726065A1 (fr)
WO (1) WO2026078305A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010017173A1 (en) * 2000-01-21 2001-08-30 Nisshin Steel Co., Ltd. High-strength, high-toughness martensitic stainless steel sheet, method of inhibiting cold-rolled steel sheet edge cracking, and method of producing the steel sheet
US20050274436A1 (en) * 2001-06-01 2005-12-15 Kunio Kondo Martensitic stainless steel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010017173A1 (en) * 2000-01-21 2001-08-30 Nisshin Steel Co., Ltd. High-strength, high-toughness martensitic stainless steel sheet, method of inhibiting cold-rolled steel sheet edge cracking, and method of producing the steel sheet
US20050274436A1 (en) * 2001-06-01 2005-12-15 Kunio Kondo Martensitic stainless steel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RODRIGUES ET AL: "Titanium and molybdenum content in supermartensitic stainless steel", MATERIALS SCIENCE, ELSEVIER, AMSTERDAM, NL, vol. 460-461, 7 May 2007 (2007-05-07), pages 149 - 152, XP022041561, ISSN: 0921-5093, DOI: 10.1016/J.MSEA.2007.01.016 *

Also Published As

Publication number Publication date
WO2026078305A1 (fr) 2026-04-16

Similar Documents

Publication Publication Date Title
KR101635008B1 (ko) 용접 열영향부 ctod 특성이 우수한 후육 고장력강 및 그의 제조 방법
EP3859040A1 (fr) Acier résistant à l'usure ayant d'excellentes dureté et ténacité au choc et procédé de fabrication de celui-ci
KR20220030288A (ko) 강판 및 그 제조 방법
KR20160090399A (ko) 용접 열 영향부의 저온 인성이 우수한 고장력 강판 및 그 제조 방법
JP7063364B2 (ja) 高Ｍｎ鋼
US12509742B2 (en) Ultra-high strength steel sheet having excellent shear workability and method for manufacturing same
US11959157B2 (en) High-Mn steel and method of producing same
EP3822384B1 (fr) Acier inoxydable austénitique ayant une résistance améliorée
EP3901305A2 (fr) Acier de construction à haute résistance présentant une excellente aptitude au pliage à froid et son procédé de fabrication
JP6856083B2 (ja) 高Ｍｎ鋼およびその製造方法
JP4998708B2 (ja) 材質異方性が小さく、耐疲労亀裂伝播特性に優れた鋼材およびその製造方法
KR102902872B1 (ko) 강재의 제조 방법
JP2003003240A (ja) 穴拡げ性及びｈａｚ部疲労特性に優れた高強度熱延鋼板及びその製造方法
KR102387364B1 (ko) 고Mn강 및 그의 제조 방법
RU2731223C1 (ru) Высокопрочная свариваемая хладостойкая сталь и изделие, выполненное из нее
EP3872219A1 (fr) Tôle d'acier à haute résistance ayant une excellente résistance à la fissuration par contrainte de sulfure, et son procédé de fabrication
EP4726065A1 (fr) Acier inoxydable martensitique
JP7088235B2 (ja) 耐摩耗鋼板およびその製造方法
JP3444244B2 (ja) 靱性に優れた高張力鋼材およびその製造方法
KR102119962B1 (ko) 용접성이 우수한 고강도 및 고연성 비자성 강재 및 이의 제조방법
JP2022106590A (ja) 電縫鋼管および電縫鋼管の製造方法
JP7541651B1 (ja) 水素輸送鋼管用高強度鋼板、その製造方法および水素輸送鋼管
JP2001064745A (ja) 経済性および靱性に優れた高張力鋼材
JP7273298B2 (ja) 低温靱性に優れる圧力容器用鋼板
EP4450663A1 (fr) Acier ayant une excellente résistance à la fissuration induite par l'hydrogène et une excellente ténacité à l'impact à basse température, et son procédé de fabrication

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR