First, an introduction to H-beam
H-beam, also known as I-beam, is an economical profile with a more optimized cross-sectional area distribution and a more reasonable strength-to-weight ratio. It is named because its cross-sectional shape is similar to the letter “H”. The inner sides of the two outer edges of the H-beam are straight and have no slope, which makes the H-beam more convenient for welding and splicing and can effectively improve the quality of the project and the safety of the building structure.
Second, the specification representation method of H-beam
The specification representation method of H-beam is usually in the form of height (h) × width (b) × thickness (d), for example, H100×100×6×8, indicating that the height of the H-beam is 100mm, the width is 100mm, the web thickness is 6mm, and the flange thickness is 8mm.
Third, the specification classification of H-beam
H-beam has a wide variety of specifications, and it can be divided into multiple grades according to different standards. Generally speaking, H-beam can be divided into two types: ordinary type and light type. The ratio of the flange thickness to the web thickness of an ordinary H-beam is greater than 2.5; the ratio of the flange thickness to the web thickness of a light H-beam is less than or equal to 2.5.
Fourth, the selection of H-beam specifications
When selecting the specifications of the H-beam, it is necessary to determine it according to the actual project needs and stress conditions. First, the height of the H-beam must be determined. Generally speaking, the height selection should be determined according to the span and load of the beam. Secondly, the width of the H-beam must be selected. The width selection is mainly determined according to the stress conditions of the beam and the needs of the building structure. Finally, the thickness of the H-beam must be selected. The thickness selection should be determined according to the stress conditions of the beam and the strength grade of the steel.
Fifth, H-beam specifications
The following are some common H-beam specifications for your reference:
1. H100×100×6×8
2. H125×125×8×10
3. H150×150×10×12
4. H175×175×12×14
5. H200×200×14×16
6. H225×225×16×18
7. H250×250×18×20
8. H275×275×20×22
9. H300×300×22×24
10. H325×325×24×26
11. H350×350×26×28
12. H375×375×28×30
13. H400×400×30×32
14. H425×425×32×34
15. H450×450×34×36
Understanding the specifications of H-shaped steel and how to select them is of great significance for us in choosing the appropriate H-shaped steel in the fields of construction, bridges, machinery, etc. In practical applications, we need to select the appropriate H-shaped steel specifications according to the needs of the project and the stress conditions to ensure the quality of the project and the safety of the building structure.
Post time: Feb-18-2025