Title:
SQUARE STEEL PIPE, MANUFACTURING METHOD FOR SAME, AND BUILDING STRUCTURE USING SQUARE STEEL PIPE
Document Type and Number:
WIPO Patent Application WO/2024/053169
Kind Code:
A1
Abstract:
Provided is a square steel pipe having excellent buckling resistance. In this square steel pipe, which has a plurality of flat portions and corner portions alternating in the pipe circumference direction, the yield strength of the flat portions in the pipe circumference direction is set to be 0.83-1.20 times the yield strength of the flat portions in the pipe axial direction, and the yield strength of the corner portions in the pipe circumference direction is set to be 0.90-1.30 times the yield strength of the flat portions in the pipe axial direction.
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Inventors:
MATSUMOTO AKIHIDE (JP)
IWATA NAOMICHI (JP)
MATSUMOTO ATSUSHI (JP)
IDE SHINSUKE (JP)
IWATA NAOMICHI (JP)
MATSUMOTO ATSUSHI (JP)
IDE SHINSUKE (JP)
Application Number:
PCT/JP2023/019016
Publication Date:
March 14, 2024
Filing Date:
May 22, 2023
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B21C37/15; B21C37/30; C21D7/02; C22C38/00; C22C38/60
Domestic Patent References:
| WO2017213104A1 | 2017-12-14 |
Foreign References:
| JPH07328715A | 1995-12-19 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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