EP4282990A4 - Tuyau en acier inoxydable duplex et son procédé fabrication - Google Patents

Tuyau en acier inoxydable duplex et son procédé fabrication

Info

Publication number: EP4282990A4
Authority: EP; European Patent Office
Prior art keywords: producing; same; stainless steel; steel pipe; duplex stainless
Prior art date: 2021-03-17
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

EP22770955.7A

Other languages

German (de)

English (en)

Other versions

EP4282990A1 (fr

Inventor

Shunsuke Sasaki

Seigo Goto

Masao Yuga

Tatsuro Katsumura

Hideo Kijima

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.)

JFE Steel Corp

Original Assignee

JFE 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.)

2021-03-17

Filing date

2022-02-09

Publication date

2025-07-23

2022-02-09 Application filed by JFE Steel Corp filed Critical JFE Steel Corp

2023-11-29 Publication of EP4282990A1 publication Critical patent/EP4282990A1/fr

2025-07-23 Publication of EP4282990A4 publication Critical patent/EP4282990A4/fr

Status Pending legal-status Critical Current

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
- 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
- C21D9/14—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant 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
- 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
- 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
- C21D6/008—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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
- 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
- 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
- C22C38/004—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
- C22C38/06—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
- C22C38/54—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
- 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
- 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

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Crystallography & Structural Chemistry (AREA)
Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Manufacturing & Machinery (AREA)
Heat Treatment Of Steel (AREA)
Heat Treatment Of Articles (AREA)
Laminated Bodies (AREA)
Metal Extraction Processes (AREA)

EP22770955.7A 2021-03-17 2022-02-09 Tuyau en acier inoxydable duplex et son procédé fabrication Pending EP4282990A4 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP2021043498		2021-03-17
PCT/JP2022/005176 WO2022196196A1 (fr)	2021-03-17	2022-02-09	Tuyau en acier inoxydable duplex et son procédé fabrication

Publications (2)

Publication Number	Publication Date
EP4282990A1 EP4282990A1 (fr)	2023-11-29
EP4282990A4 true EP4282990A4 (fr)	2025-07-23

Family

ID=83322225

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP22770955.7A Pending EP4282990A4 (fr)	2021-03-17	2022-02-09	Tuyau en acier inoxydable duplex et son procédé fabrication

Country Status (11)

Country	Link
US (1)	US20240309480A1 (fr)
EP (1)	EP4282990A4 (fr)
JP (1)	JP7173411B1 (fr)
CN (1)	CN116917523B (fr)
AR (1)	AR125543A1 (fr)
AU (1)	AU2022240057B2 (fr)
BR (1)	BR112023017868A2 (fr)
CA (1)	CA3208799A1 (fr)
MX (1)	MX2023010534A (fr)
SA (1)	SA523450566B1 (fr)
WO (1)	WO2022196196A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP7636704B2 (ja) *	2023-03-10	2025-02-27	日本製鉄株式会社	ホットスタンプ成形体
WO2024195730A1 (fr) *	2023-03-17	2024-09-26	日本製鉄株式会社	Tuyau en acier inoxydable duplex
CN120936734A (zh) *	2023-03-17	2025-11-11	日本制铁株式会社	双相不锈钢钢管
JP7498416B1 (ja) *	2023-03-28	2024-06-12	日本製鉄株式会社	Ｃｒ－Ｎｉ合金管
JPWO2025018103A1 (fr) *	2023-07-18	2025-01-23
CN119640161A (zh) *	2025-02-13	2025-03-18	湖南旺坤管业有限公司	一种用于生产低碳高钼不锈钢管道的材料及其制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP3467132A1 (fr) *	2016-06-01	2019-04-10	Nippon Steel & Sumitomo Metal Corporation	Acier inoxydable duplex et procédé de fabrication d'acier inoxydable duplex
CA3108758A1 (fr) *	2018-08-31	2020-03-05	Jfe Steel Corporation	Tuyau sans soudure en acier duplex et methode de fabrication
WO2020110597A1 (fr) *	2018-11-30	2020-06-04	Ｊｆｅスチール株式会社	Tuyau en acier inoxydable duplex sans soudure et procédé pour sa fabrication

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Publication number	Priority date	Publication date	Assignee	Title
JPS57194213A (en)	1981-05-25	1982-11-29	Nippon Kokan Kk <Nkk>	Production of abrasion resistant steel pipe
JPS63290616A (ja)	1987-05-22	1988-11-28	Sumitomo Metal Ind Ltd	耐摩耗腐蝕性に優れたクラッド鋼管
JPS6415323A (en)	1987-07-08	1989-01-19	Kawasaki Steel Co	Production of wear resistant steel pipe
JP3697853B2 (ja) *	1997-09-09	2005-09-21	Ｊｆｅスチール株式会社	耐食性に優れるステンレス熱延鋼板およびその製造方法
WO2010082395A1 (fr) *	2009-01-19	2010-07-22	住友金属工業株式会社	Procédé de production de tuyau en acier inoxydable duplex
WO2012004464A1 (fr) *	2010-07-07	2012-01-12	Arcelormittal Investigación Y Desarrollo Sl	Acier inoxydable austéno-ferritique à usinabilité améliorée
JP6341125B2 (ja) *	2015-03-17	2018-06-13	Ｊｆｅスチール株式会社	２相ステンレス継目無鋼管の製造方法
JP6792951B2 (ja) *	2015-03-30	2020-12-02	日鉄ステンレス株式会社	オゾン含有水用二相ステンレス鋼
JP6805574B2 (ja) *	2015-07-10	2020-12-23	日本製鉄株式会社	オーステナイト系耐熱鋼及びオーステナイト系伝熱部材
CA3028947A1 (fr) *	2016-06-29	2018-01-04	Nippon Steel & Sumitomo Metal Corporation	Acier ferritique resistant a la chaleur et element de transfert thermique ferritique
US11566301B2 (en) *	2016-09-02	2023-01-31	Jfe Steel Corporation	Dual-phase stainless steel, and method of production thereof
JP6946737B2 (ja) *	2017-05-18	2021-10-06	日本製鉄株式会社	二相ステンレス鋼材及びその製造方法

2022
- 2022-02-09 US US18/279,945 patent/US20240309480A1/en active Pending
- 2022-02-09 BR BR112023017868A patent/BR112023017868A2/pt unknown
- 2022-02-09 EP EP22770955.7A patent/EP4282990A4/fr active Pending
- 2022-02-09 CA CA3208799A patent/CA3208799A1/fr active Pending
- 2022-02-09 AU AU2022240057A patent/AU2022240057B2/en active Active
- 2022-02-09 MX MX2023010534A patent/MX2023010534A/es unknown
- 2022-02-09 CN CN202280018568.9A patent/CN116917523B/zh active Active
- 2022-02-09 WO PCT/JP2022/005176 patent/WO2022196196A1/fr not_active Ceased
- 2022-02-09 JP JP2022531457A patent/JP7173411B1/ja active Active
- 2022-03-16 AR ARP220100597A patent/AR125543A1/es unknown
2023
- 2023-09-06 SA SA523450566A patent/SA523450566B1/ar unknown

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP3467132A1 (fr) *	2016-06-01	2019-04-10	Nippon Steel & Sumitomo Metal Corporation	Acier inoxydable duplex et procédé de fabrication d'acier inoxydable duplex
CA3108758A1 (fr) *	2018-08-31	2020-03-05	Jfe Steel Corporation	Tuyau sans soudure en acier duplex et methode de fabrication
WO2020110597A1 (fr) *	2018-11-30	2020-06-04	Ｊｆｅスチール株式会社	Tuyau en acier inoxydable duplex sans soudure et procédé pour sa fabrication
EP3854890A1 (fr) *	2018-11-30	2021-07-28	JFE Steel Corporation	Tuyau en acier inoxydable duplex sans soudure et procédé pour sa fabrication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022196196A1 *

Also Published As

Publication number	Publication date
CA3208799A1 (fr)	2022-09-22
AU2022240057A1 (en)	2023-08-17
MX2023010534A (es)	2023-09-19
EP4282990A1 (fr)	2023-11-29
AR125543A1 (es)	2023-07-26
BR112023017868A2 (pt)	2023-10-10
WO2022196196A1 (fr)	2022-09-22
JPWO2022196196A1 (fr)	2022-09-22
SA523450566B1 (ar)	2025-06-11
CN116917523A (zh)	2023-10-20
AU2022240057B2 (en)	2024-11-14
US20240309480A1 (en)	2024-09-19
CN116917523B (zh)	2025-08-29
JP7173411B1 (ja)	2022-11-16

Publication	Publication Date	Title
EP4282990A4 (fr)	2025-07-23	Tuyau en acier inoxydable duplex et son procédé fabrication
EP3744499C0 (fr)	2023-08-23	Tuyau flexible non métallique et méthode de fabrication de celui-ci
EP4183892A4 (fr)	2023-12-20	Tôle d'acier et son procédé de production
EP4350016A4 (fr)	2024-10-23	Tôle d'acier, élément, et procédés de fabrication de ceux-ci
EP3854890A4 (fr)	2022-01-26	Tuyau en acier inoxydable duplex sans soudure et procédé pour sa fabrication
EP3910083A4 (fr)	2022-06-01	Tôle d'acier et procédé pour la fabriquer
EP4382634A4 (fr)	2024-11-20	Tôle d'acier et son procédé de fabrication
EP4269631A4 (fr)	2025-07-30	Tôle d'acier, et procédé de fabrication de celle-ci
EP3929315A4 (fr)	2024-05-08	Tôle d'acier laminée à chaud et son procédé de fabrication
EP3954790A4 (fr)	2023-07-26	Tôle d'acier et son procédé de fabrication
EP4279618A4 (fr)	2025-10-15	Matériau en acier inoxydable à base de martensite et son procédé de production
EP4151762A4 (fr)	2023-10-04	Tôle d'acier, élément, et leur procédé de fabrication
EP4386098A4 (fr)	2024-12-25	Tôle d'acier à haute résistance, tôle d'acier plaquée à haute résistance, procédés de production de celles-ci et élément
EP3778971A4 (fr)	2021-11-24	Tuyau d'acier et procédé de production de tuyau d'acier
EP4043597A4 (fr)	2022-11-09	Tôle en acier inoxydable ferritique, procédé pour la produire et élément d'acier inoxydable ferritique
EP3960885C0 (fr)	2024-04-10	Tuyau en acier sans soudure en acier inoxydable duplex et procédé pour produire un tuyau en acier sans soudure en acier inoxydable duplex
EP4186987A4 (fr)	2023-09-27	Tôle d'acier et son procédé de fabrication
EP4299781A4 (fr)	2024-08-21	Tôle d'acier et son procédé de fabrication
EP4365331A4 (fr)	2025-07-09	Élément estampé à chaud et son procédé de fabrication
EP4242336A4 (fr)	2023-10-18	Tôle d'acier, élément, et procédés de fabrication de ceux-ci
EP4148149A4 (fr)	2023-10-18	Tôle en acier laminée à chaud, et procédé de fabrication de celle-ci
EP4079881A4 (fr)	2023-05-31	Tôle d'acier et son procédé de fabrication
EP3666917A4 (fr)	2020-08-05	Tôle en acier inoxydable à base de ferrite, et procédé de fabrication de celle-ci
EP4319975C0 (fr)	2025-02-19	Panneau et son procédé de fabrication
EP3915693C0 (fr)	2023-12-06	Système de collecte et procédé de production de ce système de collecte

Legal Events

Date	Code	Title	Description
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