Title:
STEEL WIRE, AND METHOD FOR PRODUCING STEEL WIRE
Document Type and Number:
WIPO Patent Application WO/2024/024401
Kind Code:
A1
Abstract:
This steel wire comprises a steel containing 0.9-1.1 mass% of carbon, 0.15-0.25 mass% of silicon, 0.25-0.35 mass% of manganese, and 0.15-0.25 mass% of chromium, with the remainder consisting of iron and unavoidable impurities, wherein: the steel has a ferrite structure; the diameter of the steel wire is 0.05-0.45 mm; the tensile strength of the steel wire is 3900 to 4700 MPa, in the longitudinal cross section of the steel wire; and the surface region from the surface of the steel wire to a depth of 10% of the diameter has a structure in which the total ratio A of the <100> azimuth aggregate structure ratio A100, the <110> azimuth aggregate structure ratio A110, and the <111> azimuth aggregate structure ratio A111 is 32% or less.
Inventors:
AKADA TAKUMI (JP)
HIRAI KEI (JP)
NAKAJIMA TETSUYA (JP)
MATSUOKA AKIFUMI (JP)
HIRAI KEI (JP)
NAKAJIMA TETSUYA (JP)
MATSUOKA AKIFUMI (JP)
Application Number:
PCT/JP2023/024538
Publication Date:
February 01, 2024
Filing Date:
July 03, 2023
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
C22C38/00; C21D8/06; C21D9/52; C22C38/18; D07B1/06
Domestic Patent References:
| WO2016024635A1 | 2016-02-18 | |||
| WO2010150450A1 | 2010-12-29 |
Foreign References:
| JPH02263951A | 1990-10-26 | |||
| JP2022056005A | 2022-04-08 | |||
| JP2017186633A | 2017-10-12 | |||
| JPH06158224A | 1994-06-07 |
Attorney, Agent or Firm:
MORITA Takeshi et al. (JP)
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