CA2930140C - Acier inoxydable martensitique, piece realisee en cet acier et son procede de fabrication - Google Patents

Acier inoxydable martensitique, piece realisee en cet acier et son procede de fabrication Download PDF

Info

Publication number
CA2930140C
CA2930140C CA2930140A CA2930140A CA2930140C CA 2930140 C CA2930140 C CA 2930140C CA 2930140 A CA2930140 A CA 2930140A CA 2930140 A CA2930140 A CA 2930140A CA 2930140 C CA2930140 C CA 2930140C
Authority
CA
Canada
Prior art keywords
stainless steel
martensitic stainless
traces
semi
finished product
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.)
Active
Application number
CA2930140A
Other languages
English (en)
French (fr)
Other versions
CA2930140A1 (fr
Inventor
Sylvain Pierre Puech
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.)
Aubert and Duval SA
Original Assignee
Aubert and Duval SA
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 Aubert and Duval SA filed Critical Aubert and Duval SA
Publication of CA2930140A1 publication Critical patent/CA2930140A1/fr
Application granted granted Critical
Publication of CA2930140C publication Critical patent/CA2930140C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C22C38/18—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • 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
    • C21D1/25—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
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/007—Heat treatment of ferrous alloys containing Co
    • 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
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • C21D6/02—Hardening by precipitation
    • 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
    • C21D6/04—Hardening by cooling below 0 degrees Celsius
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • 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
    • C21D9/32—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
    • 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
    • C22C38/06—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
    • 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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/248—Thermal after-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2301/00—Metallic composition of the powder or its coating
    • B22F2301/35—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • 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
    • 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)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Powder Metallurgy (AREA)
CA2930140A 2013-11-25 2014-11-25 Acier inoxydable martensitique, piece realisee en cet acier et son procede de fabrication Active CA2930140C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1361598 2013-11-25
FR1361598A FR3013738B1 (fr) 2013-11-25 2013-11-25 Acier inoxydable martensitique, piece realisee en cet acier et son procede de fabrication
PCT/EP2014/075534 WO2015075262A1 (fr) 2013-11-25 2014-11-25 Acier inoxydable martensitique, pièce réalisée en cet acier et son procédé de fabrication

Publications (2)

Publication Number Publication Date
CA2930140A1 CA2930140A1 (fr) 2015-05-28
CA2930140C true CA2930140C (fr) 2022-04-19

Family

ID=50424415

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2930140A Active CA2930140C (fr) 2013-11-25 2014-11-25 Acier inoxydable martensitique, piece realisee en cet acier et son procede de fabrication

Country Status (12)

Country Link
US (1) US20160289805A1 (pl)
EP (1) EP3074544B8 (pl)
JP (1) JP6207761B2 (pl)
CN (1) CN105765087B (pl)
CA (1) CA2930140C (pl)
DK (1) DK3074544T3 (pl)
ES (1) ES2763971T3 (pl)
FR (1) FR3013738B1 (pl)
MX (1) MX381940B (pl)
PL (1) PL3074544T3 (pl)
RU (1) RU2016119955A (pl)
WO (1) WO2015075262A1 (pl)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107653421B (zh) * 2016-07-26 2019-12-10 中国科学院金属研究所 一种耐海水腐蚀的超高强度马氏体时效不锈钢
CN107236895A (zh) * 2017-06-27 2017-10-10 南京律智诚专利技术开发有限公司 一种用于深海潜航设备的合金的生产工艺
GB201805776D0 (en) 2018-04-06 2018-05-23 Rolls Royce Plc Maraging steel
CN111014682B (zh) * 2019-10-23 2021-12-14 广州市广智机电工业研究所有限公司 一种粉末不锈钢组织均匀化工艺
SE543967C2 (en) * 2020-02-11 2021-10-12 Blykalla Reaktorer Stockholm Ab A martensitic steel
JP7580480B2 (ja) * 2020-02-26 2024-11-11 シーアールエス・ホールディングス・リミテッド・ライアビリティ・カンパニー 高破壊靭性かつ高強度の析出硬化型ステンレス鋼
CN112195418B (zh) * 2020-09-29 2022-03-18 中国科学院金属研究所 一种微纳米晶马氏体时效不锈钢及其制备方法
CN113604753B (zh) * 2021-06-22 2022-06-17 北京科技大学 一种2600MPa级超高强度钢及其制备方法
CN113774281A (zh) * 2021-08-25 2021-12-10 哈尔滨工程大学 一种2000MPa级高塑韧性高耐蚀马氏体时效不锈钢及其制备方法
CN113774288A (zh) * 2021-08-25 2021-12-10 哈尔滨工程大学 一种超高强高性能中厚板马氏体时效不锈钢及其制备方法
CN113981328B (zh) * 2021-09-18 2022-05-24 四川大学 表面自发连续生成三氧化二铝膜的含铝奥氏体不锈钢及其制备方法
CN115261745A (zh) * 2022-06-30 2022-11-01 河钢股份有限公司 一种高强度马氏体时效不锈钢及其制备方法
CN115233115B (zh) * 2022-07-21 2023-05-16 江苏康瑞新材料科技股份有限公司 一种冷镦辐条用不锈钢丝及其制备方法
CN116024496B (zh) * 2022-12-22 2024-12-06 敦化市拜特科技有限公司 不锈钢带及其制造方法
CN116970878B (zh) * 2023-08-07 2025-04-25 浙江全鼎磁电材料有限公司 高韧性高强度马氏体不锈钢、钢结构件及其制备方法与应用

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1399973A (fr) * 1963-07-11 1965-05-21 Deutsche Edelstahlwerke Ag Acier de construction à haute résistance pouvant subir une trempe avec ségrégation
US6813273B2 (en) * 2001-01-19 2004-11-02 Motorola, Inc. Method and apparatus for determining existence of an address in an address look-up table
CA2442068C (en) * 2001-03-27 2010-08-10 Crs Holdings, Inc. Ultra-high-strength precipitation-hardenable stainless steel and elongated strip made therefrom
US7901519B2 (en) * 2003-12-10 2011-03-08 Ati Properties, Inc. High strength martensitic stainless steel alloys, methods of forming the same, and articles formed therefrom
FR2887558B1 (fr) * 2005-06-28 2007-08-17 Aubert & Duval Soc Par Actions Composition d'acier inoxydable martensitique, procede de fabrication d'une piece mecanique a partir de cet acier et piece ainsi obtenue
WO2012002208A1 (ja) * 2010-06-28 2012-01-05 社団法人日本航空宇宙工業会 析出強化型ステンレス鋼及びその製造方法
FR2964668B1 (fr) * 2010-09-14 2012-10-12 Snecma Optimisation de l'usinabilite d'aciers martensitiques inoxydables

Also Published As

Publication number Publication date
JP2017503083A (ja) 2017-01-26
MX381940B (es) 2025-03-13
WO2015075262A1 (fr) 2015-05-28
RU2016119955A (ru) 2017-12-29
DK3074544T3 (da) 2020-01-20
FR3013738A1 (fr) 2015-05-29
ES2763971T3 (es) 2020-06-01
FR3013738B1 (fr) 2016-10-14
CN105765087A (zh) 2016-07-13
US20160289805A1 (en) 2016-10-06
EP3074544A1 (fr) 2016-10-05
EP3074544B1 (fr) 2019-10-30
MX2016006766A (es) 2016-09-08
EP3074544B8 (fr) 2020-03-11
CA2930140A1 (fr) 2015-05-28
CN105765087B (zh) 2018-06-01
PL3074544T3 (pl) 2020-05-18
JP6207761B2 (ja) 2017-10-04

Similar Documents

Publication Publication Date Title
CA2930140C (fr) Acier inoxydable martensitique, piece realisee en cet acier et son procede de fabrication
CA2612718C (fr) Composition d'acier inoxydable martensitique, procede de fabrication d'une piece mecanique a partir de cet acier et piece ainsi obtenue
EP2038445B1 (fr) Acier inoxydable duplex
CA2847809C (fr) Acier lamine durcissant par precipitation apres formage a chaud et/ou trempe sous outil a tres haute resistance et ductilite et son procede de fabrication
FR2823226A1 (fr) Acier et tube en acier pour usage a haute temperature
FR2958660A1 (fr) Acier pour pieces mecaniques a hautes caracteristiques et son procede de fabrication.
WO2017216500A1 (fr) Composition d'acier
FR2893954A1 (fr) Acier pour outillage a chaud, et piece realisee en cet acier et son procede de fabrication
EP3274483B1 (fr) Pieces a structure bainitique a hautes proprietes de resistance et procede de fabrication
CA2843360C (fr) Acier pour la fabrication de pieces cementees, piece cementee realisee avec cet acier et son procede de fabrication
EP3891316A1 (fr) Acier inoxydable, produits réalisés en cet acier et leurs procédés de fabrication
FR2904635A1 (fr) Procede de fabrication d'ebauches en acier
WO2006125899A1 (fr) Acier pour coques de sous-marins a soudabilite renforcee
CA3011054C (fr) Compositions d'aciers aux proprietes anti-cokage ameliorees
WO2022253912A1 (fr) Pièce en acier mise en forme à chaud et procédé de fabrication

Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20190820

R00 Party data change recorded

Free format text: ST27 STATUS EVENT CODE: A-4-4-R10-R00-R113 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: CHANGE OF ADDRESS OR METHOD OF CORRESPONDENCE REQUEST RECEIVED

Effective date: 20240813

MPN Maintenance fee for patent paid

Free format text: FEE DESCRIPTION TEXT: MF (PATENT, 10TH ANNIV.) - STANDARD

Year of fee payment: 10

U00 Fee paid

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U00-U101 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE REQUEST RECEIVED

Effective date: 20241120

U11 Full renewal or maintenance fee paid

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U11-U102 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE PAYMENT DETERMINED COMPLIANT

Effective date: 20241120

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U11-U102 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE PAYMENT PAID IN FULL

Effective date: 20241120

MPN Maintenance fee for patent paid

Free format text: FEE DESCRIPTION TEXT: MF (PATENT, 11TH ANNIV.) - STANDARD

Year of fee payment: 11

U00 Fee paid

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U00-U101 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE REQUEST RECEIVED

Effective date: 20251117

U11 Full renewal or maintenance fee paid

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U11-U102 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE PAYMENT PAID IN FULL

Effective date: 20251117