Factory Supplier H-type Steel H Beam Astm A36 Q345b H-beam Steel I-beam

There are many product specifications of H-beam, and the classification methods are as follows. (1) According to the flange width of the product, it is divided into wide flange, middle flange and narrow flange H-beam. The flange width B of wide flange and middle flange H-section steel is greater than or equal to the web height H. The flange width B of the narrow flange H-beam is approximately equal to one-half of the web height H. (2) According to product use, it is divided into H-shaped steel beam, H-shaped steel column, H-shaped steel pile, and extremely thick flange H-shaped steel beam. Sometimes parallel leg channels and parallel flange T-beams are also included in the scope of H-beams. Generally, the narrow flange H-beam is used as the beam material, and the wide-flange H-beam is used as the column material. (3) According to the production method, it is divided into welded H-beam and rolled H-beam. (4) According to the size, it is divided into large, medium and small H-beams. Usually, products with a web height H above 700mm are called large, those with a height of 300 to 700mm are called medium, and those with a height of less than 300mm are called small. By the end of 1990, the world's largest H-beam had a web height of 1200mm and a flange width of 530mm.H-beam is an economical section and high-efficiency profile with more optimized cross-sectional area distribution and more reasonable strength-to-weight ratio. It is named because its cross section is the same as the English letter "H". Since all parts of the H-beam are arranged at right angles, the H-beam has the advantages of strong bending resistance, simple construction, cost saving and light weight in all directions, and has been widely used.