Stainless steel I-beam is a kind of "I"-shaped cross-section steel. The inner surface of the upper and lower flanges has an inclination, usually 1:6, which makes the flange thin on the outside and thick on the inside. This causes the stainless steel I-beam to be in two main planes. The cross-sectional properties of steel are very different, and it is difficult to exert the strength properties of steel in applications. Although stainless steel thickened I-beams are also available in the I-beam market, the structure of the I-beam has determined that its torsional resistance is weak.
H-shaped steel is currently a widely used profile in steel structure buildings, and there are still many differences compared to I-beam. The first is the flange, and secondly the inner surface of the flange has no inclination, and the upper and lower surfaces are parallel. The cross-sectional properties of H-shaped steel are better than traditional I-beam, channel steel and angle steel. It is an economical cross-section and high-efficiency profile with more optimized cross-sectional area distribution and more reasonable strength-to-weight ratio.
Whether I-shaped steel is ordinary or light, because the cross-section size is relatively high and narrow, the moment of inertia of the two main sleeves of the cross-section is quite different, so it can usually only be used directly for bending in the plane of its web. components or form them into lattice-type stressed components. It is not suitable for axial compression members or members that are bent perpendicular to the web plane, which greatly limits its application range.
