I-beam:The I-beam flange has a variable cross-section that is thicker on the web and thinner on the outside;
H-shaped steel:The flange of H-shaped steel is of equal cross-section. HW, HM, HN and H are the general names of H-shaped steel. H-shaped steel is welded;
HW:HW,HM,HN is hot rolled, HW is the height and flange width are basically equal, mainly used for steel core columns in reinforced concrete frame structure columns, also called stiff steel columns, mainly used for columns in steel structures.;
HM:HM is a ratio between height and flange width of approximately 1.33~~1.75. It is mainly used as steel frame columns in steel structures and as frame beams in frame structures that bear dynamic loads, such as equipment platforms;
HN:HN is a ratio of height to flange width greater than or equal to 2. It is mainly used for beams. The use of I-beam is equivalent to HN section steel.
