JP7800781B1 - ステンレス鋼管および油井管 - Google Patents

ステンレス鋼管および油井管

Info

Publication number
JP7800781B1
JP7800781B1 JP2025527752A JP2025527752A JP7800781B1 JP 7800781 B1 JP7800781 B1 JP 7800781B1 JP 2025527752 A JP2025527752 A JP 2025527752A JP 2025527752 A JP2025527752 A JP 2025527752A JP 7800781 B1 JP7800781 B1 JP 7800781B1
Authority
JP
Japan
Prior art keywords
less
stainless steel
steel pipe
kam
average
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
JP2025527752A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2025187217A1 (https=
JPWO2025187217A5 (https=
Inventor
晃英 松本
祐一 加茂
健一郎 江口
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.)
Filing date
Publication date
Application filed by JFE Steel Corp filed Critical JFE Steel Corp
Publication of JPWO2025187217A1 publication Critical patent/JPWO2025187217A1/ja
Application granted granted Critical
Publication of JP7800781B1 publication Critical patent/JP7800781B1/ja
Publication of JPWO2025187217A5 publication Critical patent/JPWO2025187217A5/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C21D8/10—Modifying the physical properties of ferrous metals or ferrous alloys 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
JP2025527752A 2024-03-05 2025-01-17 ステンレス鋼管および油井管 Active JP7800781B1 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2024032953 2024-03-05
JP2024032953 2024-03-05
PCT/JP2025/001369 WO2025187217A1 (ja) 2024-03-05 2025-01-17 ステンレス鋼管および油井管

Publications (3)

Publication Number Publication Date
JPWO2025187217A1 JPWO2025187217A1 (https=) 2025-09-12
JP7800781B1 true JP7800781B1 (ja) 2026-01-16
JPWO2025187217A5 JPWO2025187217A5 (https=) 2026-02-10

Family

ID=96990535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2025527752A Active JP7800781B1 (ja) 2024-03-05 2025-01-17 ステンレス鋼管および油井管

Country Status (2)

Country Link
JP (1) JP7800781B1 (https=)
WO (1) WO2025187217A1 (https=)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004238662A (ja) * 2003-02-04 2004-08-26 Sumitomo Metal Ind Ltd マルテンサイト系ステンレス鋼管及びその製造方法
WO2019065116A1 (ja) * 2017-09-29 2019-04-04 Ｊｆｅスチール株式会社 油井管用マルテンサイト系ステンレス継目無鋼管およびその製造方法
JP2021167445A (ja) * 2020-04-10 2021-10-21 日本製鉄株式会社 二相ステンレス鋼材
WO2021225103A1 (ja) * 2020-05-07 2021-11-11 日本製鉄株式会社 二相ステンレス継目無鋼管
WO2024009564A1 (ja) * 2022-07-05 2024-01-11 Ｊｆｅスチール株式会社 ステンレス継目無鋼管およびその製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004238662A (ja) * 2003-02-04 2004-08-26 Sumitomo Metal Ind Ltd マルテンサイト系ステンレス鋼管及びその製造方法
WO2019065116A1 (ja) * 2017-09-29 2019-04-04 Ｊｆｅスチール株式会社 油井管用マルテンサイト系ステンレス継目無鋼管およびその製造方法
JP2021167445A (ja) * 2020-04-10 2021-10-21 日本製鉄株式会社 二相ステンレス鋼材
WO2021225103A1 (ja) * 2020-05-07 2021-11-11 日本製鉄株式会社 二相ステンレス継目無鋼管
WO2024009564A1 (ja) * 2022-07-05 2024-01-11 Ｊｆｅスチール株式会社 ステンレス継目無鋼管およびその製造方法

Also Published As

Publication number Publication date
WO2025187217A1 (ja) 2025-09-12
WO2025187217A8 (ja) 2025-10-02
JPWO2025187217A1 (https=) 2025-09-12

Similar Documents

Publication Publication Date Title
EP3192890B1 (en) High strength seamless steel pipe for use in oil wells and manufacturing method thereof
US10876183B2 (en) High-strength seamless stainless steel pipe and method of manufacturing high-strength seamless stainless steel pipe
JP6358411B1 (ja) 二相ステンレス鋼およびその製造方法
RU2599936C2 (ru) Бесшовная труба из высокопрочной нержавеющей стали с высокой коррозионной стойкостью для нефтяной скважины и способ её изготовления
JP4911266B2 (ja) 高強度油井用ステンレス鋼及び高強度油井用ステンレス鋼管
JP6037031B1 (ja) 高強度継目無厚肉鋼管およびその製造方法
EP2060644A1 (en) Martensitic stainless steel
JP6369662B1 (ja) 二相ステンレス鋼およびその製造方法
JP6152930B1 (ja) 油井用低合金高強度厚肉継目無鋼管
EP3026138A1 (en) High-strength steel material for oil well use, and oil well pipe
EP3192889B1 (en) High strength seamless steel pipe for use in oil wells and manufacturing method thereof
KR20180082581A (ko) 냉간 단조 조질품용 압연 봉선
JP6315076B2 (ja) 油井用高強度ステンレス継目無鋼管の製造方法
JP7806913B2 (ja) 油井用高強度ステンレス継目無鋼管
JP7800781B1 (ja) ステンレス鋼管および油井管
JP7347714B1 (ja) 油井用高強度ステンレス継目無鋼管
JP7498416B1 (ja) Ｃｒ－Ｎｉ合金管
US20250333825A1 (en) New duplex stainless steel
CN117120653A (zh) 不锈钢管及其制造方法
JP7816551B2 (ja) 二相ステンレス鋼およびステンレス継目無鋼管
WO2026004524A1 (ja) ステンレス鋼およびステンレス継目無鋼管
WO2026004523A1 (ja) ステンレス鋼およびステンレス継目無鋼管
JPWO2020158111A1 (ja) 二相ステンレス鋼、継目無鋼管、および二相ステンレス鋼の製造方法

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20250513

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20250513

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20250513

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20250819

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20251007

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20251202

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20251215

R150 Certificate of patent or registration of utility model

Ref document number: 7800781

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150