EP4640897A4 - Feuille d'acier laminée à chaud et son procédé de fabrication - Google Patents

Feuille d'acier laminée à chaud et son procédé de fabrication

Info

Publication number
EP4640897A4
EP4640897A4 EP23907586.4A EP23907586A EP4640897A4 EP 4640897 A4 EP4640897 A4 EP 4640897A4 EP 23907586 A EP23907586 A EP 23907586A EP 4640897 A4 EP4640897 A4 EP 4640897A4
Authority
EP
European Patent Office
Prior art keywords
hot
producing
steel sheet
rolled steel
rolled
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
EP23907586.4A
Other languages
German (de)
English (en)
Other versions
EP4640897A1 (fr
Inventor
Tae-Jin Song
Young-Roc Im
Yong-Jin Kim
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.)
Posco Holdings Inc
Original Assignee
Posco Co Ltd
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 Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP4640897A1 publication Critical patent/EP4640897A1/fr
Publication of EP4640897A4 publication Critical patent/EP4640897A4/fr
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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • 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
    • 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
    • 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
    • C22C38/002—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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • 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
    • C21D2211/002—Bainite
    • 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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)
EP23907586.4A 2022-12-21 2023-12-14 Feuille d'acier laminée à chaud et son procédé de fabrication Pending EP4640897A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220180302A KR20240098492A (ko) 2022-12-21 2022-12-21 성형성이 우수한 초고강도 열연 강판 및 그 제조방법
PCT/KR2023/020644 WO2024136300A1 (fr) 2022-12-21 2023-12-14 Feuille d'acier laminée à chaud et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP4640897A1 EP4640897A1 (fr) 2025-10-29
EP4640897A4 true EP4640897A4 (fr) 2026-04-29

Family

ID=91589481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23907586.4A Pending EP4640897A4 (fr) 2022-12-21 2023-12-14 Feuille d'acier laminée à chaud et son procédé de fabrication

Country Status (6)

Country Link
EP (1) EP4640897A4 (fr)
JP (1) JP2025541896A (fr)
KR (1) KR20240098492A (fr)
CN (1) CN120344702A (fr)
MX (1) MX2025007287A (fr)
WO (1) WO2024136300A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118979190B (zh) * 2024-08-26 2025-11-25 北京科技大学 低碳高扩孔钢及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2871254A1 (fr) * 2012-09-13 2015-05-13 JFE Steel Corporation Tôle d'acier laminée à chaud et procédé pour la fabriquer
WO2017017933A1 (fr) * 2015-07-27 2017-02-02 Ｊｆｅスチール株式会社 Tôle d'acier laminée à chaud à haute résistance et procédé de fabrication pour cette dernière
US20200190640A1 (en) * 2018-12-18 2020-06-18 Posco Cold-rolled steel sheet with excellent formability, galvanized steel sheet, and manufacturing method thereof
EP3786310A1 (fr) * 2018-04-23 2021-03-03 Nippon Steel Corporation Élément en acier et son procédé de production
KR20220087178A (ko) * 2020-12-17 2022-06-24 주식회사 포스코 가공성이 우수한 고강도 강판 및 그 제조방법

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101265553B (zh) 2007-03-15 2011-01-19 株式会社神户制钢所 挤压加工性优异的高强度热轧钢板及其制造方法
US10202664B2 (en) * 2012-03-30 2019-02-12 Voestalpine Stahl Gmbh High strength cold rolled steel sheet
JP6434348B2 (ja) * 2015-03-23 2018-12-05 株式会社神戸製鋼所 加工性に優れた高強度鋼板
JP7185555B2 (ja) * 2019-02-18 2022-12-07 株式会社神戸製鋼所 鋼板
CN115398021B (zh) * 2020-04-17 2023-11-14 日本制铁株式会社 高强度热轧钢板
KR102391651B1 (ko) * 2020-09-22 2022-04-29 주식회사 포스코 충돌성능이 우수한 열연강판 및 그 제조방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2871254A1 (fr) * 2012-09-13 2015-05-13 JFE Steel Corporation Tôle d'acier laminée à chaud et procédé pour la fabriquer
WO2017017933A1 (fr) * 2015-07-27 2017-02-02 Ｊｆｅスチール株式会社 Tôle d'acier laminée à chaud à haute résistance et procédé de fabrication pour cette dernière
EP3786310A1 (fr) * 2018-04-23 2021-03-03 Nippon Steel Corporation Élément en acier et son procédé de production
US20200190640A1 (en) * 2018-12-18 2020-06-18 Posco Cold-rolled steel sheet with excellent formability, galvanized steel sheet, and manufacturing method thereof
KR20220087178A (ko) * 2020-12-17 2022-06-24 주식회사 포스코 가공성이 우수한 고강도 강판 및 그 제조방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2024136300A1 *

Also Published As

Publication number Publication date
CN120344702A (zh) 2025-07-18
EP4640897A1 (fr) 2025-10-29
MX2025007287A (es) 2025-09-02
WO2024136300A1 (fr) 2024-06-27
JP2025541896A (ja) 2025-12-23
KR20240098492A (ko) 2024-06-28

Similar Documents

Publication Publication Date Title
EP3929315A4 (fr) Tôle d'acier laminée à chaud et son procédé de fabrication
EP4219784A4 (fr) Feuille d'acier laminée à chaud épaisse de haute résistance et son procédé de fabrication
EP4560038A4 (fr) Tôle d'acier à haute résistance, son procédé de production, élément et son procédé de production
EP4575008A4 (fr) Tôle d'acier épaisse, et procédé de fabrication de celle-ci
EP4640854A4 (fr) Tôle d'acier électrique à grains orientés et son procédé de fabrication
EP4484590A4 (fr) Tôle d'acier galvanisée et son procédé de production
EP4477769A4 (fr) Tôle en acier, et procédé de fabrication de celle-ci
EP4640897A4 (fr) Feuille d'acier laminée à chaud et son procédé de fabrication
EP4640899A4 (fr) Feuille d'acier laminée à froid et son procédé de fabrication
EP4575016A4 (fr) Tôle d'acier plaquée hautement résistante, et procédé de fabrication de celle-ci
EP4600399A4 (fr) Tôle d'acier et son procédé de fabrication
EP4636118A4 (fr) Tôle d'acier et son procédé de fabrication
EP4603614A4 (fr) Tôle d'acier électromagnétique à grains orientés, et procédé de fabrication de celle-ci
EP4621089A4 (fr) Feuille d'acier électromagnétique à grains orientés et son procédé de production
EP4317504A4 (fr) Feuille d'acier laminée à chaud et son procédé de fabrication
EP4600384A4 (fr) Feuille d'acier électromagnétique à grains orientés et son procédé de fabrication
EP4549609A4 (fr) Tôle d'acier laminée à froid et son procédé de fabrication
EP4560037A4 (fr) Tôle d'acier galvanisée à haute résistance, son procédé de fabrication, élément et son procédé de fabrication
EP4484585A4 (fr) Tôle d'acier, et procédé de fabrication de celle-ci
EP4467680A4 (fr) Tôle en acier, et procédé de fabrication de celle-ci
EP4461838A4 (fr) Tôle d'acier et son procédé de fabrication
EP4640900A4 (fr) Tôle d'acier laminée à chaud et son procédé de fabrication
EP4600381A4 (fr) Tôle d'acier laminée à chaud et son procédé de production
EP4596737A4 (fr) Tôle d'acier laminée à chaud et son procédé de production
EP4269644A4 (fr) Tôle d'acier laminée à froid et son procédé de fabrication

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20250708

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

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: C22C0038380000

Ipc: C22C0038000000

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20260327

RIC1 Information provided on ipc code assigned before grant

Ipc: C22C 38/00 20060101AFI20260323BHEP

Ipc: C22C 38/02 20060101ALI20260323BHEP

Ipc: C22C 38/04 20060101ALI20260323BHEP

Ipc: C22C 38/06 20060101ALI20260323BHEP

Ipc: C22C 38/14 20060101ALI20260323BHEP

Ipc: C22C 38/22 20060101ALI20260323BHEP

Ipc: C22C 38/26 20060101ALI20260323BHEP

Ipc: C22C 38/28 20060101ALI20260323BHEP

Ipc: C22C 38/32 20060101ALI20260323BHEP

Ipc: C22C 38/34 20060101ALI20260323BHEP

Ipc: C22C 38/38 20060101ALI20260323BHEP

Ipc: C22C 38/60 20060101ALI20260323BHEP

Ipc: C21D 8/02 20060101ALI20260323BHEP

Ipc: C21D 8/0221 20260101ALI20260323BHEP

Ipc: C21D 8/0247 20260101ALI20260323BHEP

Ipc: C21D 9/46 20060101ALI20260323BHEP

Ipc: C23C 2/06 20060101ALI20260323BHEP

Ipc: C23G 1/08 20060101ALI20260323BHEP

Ipc: B21C 47/02 20060101ALI20260323BHEP