Structural steel is an extremely versatile and malleable metal that is suitable for a variety of commercial, domestic and industrial applications. It benefits from the most important properties of steel, including strength and formability, but is easier to machine due to its reduced carbon content and can be drilled, cut and welded for a wide variety of applications used to make building materials in a variety of shapes. There are several types of structural steel most notably long products, flat products & tubulars. The shapes, sizes, chemical composition, and mechanical properties of structural steel, such as strength, storage practices, etc., are regulated by standards in most industrialized countries. Most structural steel profiles, such as I-beams, have high second moments of area, which means that they are very rigid in relation to their cross-sectional area and therefore can withstand a high load without sagging.