There are four forms of h-beam specifications.
1. According to the width of the product flange, it is divided into wide flange, middle flange and narrow flange H-beam. The flange width b of the wide flange and middle flange H-section steel is greater than or equal to the web height H, and the flange width b of the narrow flange H-section steel is about half of the web height H.
2. According to the use of the product, it can be divided into H-shaped steel beam, H-shaped steel column, H-shaped steel pile, H-shaped steel flange extra-thick beam. Sometimes parallel leg channels and parallel flange T-beams are also included in the scope of H-beams. Beam materials generally use narrow flange H-beams, and column materials generally use wide-flange H-beams.
3. According to the production method, it can be divided into welded H-beam and rolled H-beam.
4. According to the specifications and sizes, it is divided into large, medium and small H-beams. Generally speaking, products with web hei