METHOD OF MANUFACTURING HOT-ROLLED T-SHAPE STEEL FOR HULL REINFORCING MEMBER AND HOT-ROLLED T-SHAPE STEEL

摘要

PROBLEM TO BE SOLVED: To manufacture a T-shape steel which is ≥350 mm in the web height and ≤200 mm in the flange width and suitable to hull reinforcing members at low cost by hot rolling.;SOLUTION: This T-shape steel is a hot-rolled T-shape steel for hull reinforcing members which is ≥350 mm in the web height, desirably, ≥500 mm, also ≤200 mm in the flange width and the apical surface of the web of which is a rolled surface reduced with rolling rolls. Furthermore, the apical portions of the flange are as-rolled and have a circular-arcuate portion of the radius of 2-6 mm or a chamfered portion of 2-6 C.;COPYRIGHT: (C)2008,JPO&INPIT