w18x106 American W Shapes Section Steel
Cross-sectional dimensions and geometrical properties
| parameter | Value (inch/mm) | Remark |
|---|---|---|
| Cross-section height (H) | 18inches / 457mm | The actual height tolerance is ±1.5% |
| Flange width (B) | 11.2inches / 284mm | The specific value is adjusted by the suffix |
| Flange thickness (tf) | 1.18inches / 23.9mm | Enhanced bending resistance |
| Web thickness (tw) | 0.59 inches / 15 mm | Optimized shear performance |
| Moment of inertia (Ix) | 727.8×10⁶ mm⁴ | Flexural stiffness core index |
| Section modulus (Sx) | 120.9×10³ mm³ | Directly determines the carrying capacity |
Comparison with domestic and foreign standards
| American Standard Model | Similar to national standard model | Differences |
|---|---|---|
| W18x106 wide flange beam | HW500×500×20×30 |
The national standard has a wider cross section, excellent torsion resistance but is 12%-15% heavier |
w18x106 wf steel beam material grade
A36 h shaped steel material: yield strength ≥36ksi (250MPa), tensile strength 58-80ksi, general building structure.
A572GR50 structural h beam material: yield strength ≥50ksi (345MPa), tensile strength ≥65ksi, high-load bridges and factories.
A992 h shaped beam material: yield strength 50-65ksi, tensile strength ≥65ksi, seismic core components of high-rise buildings.Ductility: elongation at break ≥18%, meeting the requirements of plastic deformation under dynamic loads.
Application of w18x106 h beam wide flange
Super high-rise buildings: as main beams or columns, supporting large-span (＞20m) frame structures.
Heavy industrial facilities: used in high-load scenarios such as crane beams in steel mills and support brackets for port loading and unloading equipment.
Bridge engineering: suitable for railway bridges and highway bridge main beams, and requires the use of A572 GR50 material to improve durability.
