Title:
WIDE FLANGE SHAPE EXCELLENT IN STRAIGHTNESS AND TOUGHNESS AND METHOD FOR STRAIGHTENING IT
Document Type and Number:
Japanese Patent JP2003080317
Kind Code:
A
Abstract:
To provide a wide flange shape having fillet parts excellent in straightness and toughness by rolling straightening.
The wide flange shape excellent in the straightness and the toughness is characterized in that the hardness of materials in the vicinities of connected parts between the flanges and the web in the cross section perpendicular to the longitudinal direction of the wide flange shape after straightening is ≤1.2 times the average hardness of the cross section perpendicular to the longitudinal direction of the wide flange shape.
Inventors:
Yoshida, Tadatsugu
Ogawa, Shigeru
Ogawa, Shigeru
Application Number:
JP2001000270875
Publication Date:
March 18, 2003
Filing Date:
September 06, 2001
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
B21D3/05; (IPC1-7): B21D3/05