HOT ROLLED ANGULAR SHAPE Russian patent published in 1996 - IPC

FIELD: rolled stock production, namely production of angular shapes for building and machine engineering. SUBSTANCE: well known angular hot rolled shape having in cross section two flanges, whose outer surfaces form right angle at their crossing and whose inner surfaces have slope towards flange ends includes inner surfaces of flanges provided with rectilinear portions consisting 0.6-0.75 of total length of flanges. Slope of inner surfaces of flanges from shape apex towards rectilinear portions is equal to 7-12 degrees, their joining is formed as concave portion of arc of circle with radius consisting 0.5-0.8 of thickness of flange of equal-thickness portion of that shape. Using of such shapes allows to lower metal consumption of constructions by (3.5-6)% without decreasing of its carrying capability. EFFECT: enhanced manufacturability of shape. 1 cl, 1 dwg