SEAMLESS STAINLESS STEEL PIPE AND METHOD FOR MANUFACTURING SAME

Title:

SEAMLESS STAINLESS STEEL PIPE AND METHOD FOR MANUFACTURING SAME

Document Type and Number:

WIPO Patent Application WO/2024/009564

Kind Code:

A1

Abstract:

Provided is a seamless stainless steel pipe provided with both high strength and excellent low-temperature toughness and corrosion resistance. This seamless stainless steel pipe has: a prescribed component composition; by volume, at least 30% of martensite phase, 50% or less of ferrite phase, and 40% or less of retained austenite phase; a yield strength of 758 MPa or more; and a Charpy absorbed energy vE-10 at –10°C of 40 J or more.

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Inventors:

KAMO YUICHI (JP)
IDE SHINSUKE (JP)
SUGAHARA KOKI (JP)

Application Number:

PCT/JP2023/008928

Publication Date:

January 11, 2024

Filing Date:

March 08, 2023

Export Citation:

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Assignee:

JFE STEEL CORP (JP)

International Classes:

C22C38/00; C21D8/10; C21D9/08; C22C38/60

Domestic Patent References:

WO2021187331A1	2021-09-23
WO2021187330A1	2021-09-23

Foreign References:

JP2021161503A	2021-10-11
JP7226675B1	2023-02-21

Attorney, Agent or Firm:

SUGIMURA Kenji (JP)

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