HP18X204 Steel HP-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 18.3 | 464.8 mm |
| Flange Width (bf) | 18.1 | 45.97 cm |
| Flange Thickness (tf) | 1.13 | 28.7 mm |
| Web Thickness (tw) | 1.13 | 28.7 mm |
| Area (A) | 60.2 in² | 388.4 cm² |
| Weight | 204 lb/ft | 303.6 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 3480 | 1120 | in⁴ |
| Elastic Section Modulus (S) | 380 | 124 | in³ |
| Plastic Section Modulus (Z) | 433 | 191 | in³ |
| Radius of Gyration (r) | 7.6 | 4.31 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 29.5 | in⁴ |
| Warping Constant (Cw) | 82500 | in⁶ |
| Distance Between Flange Centroids (ho) | 17.2 | in |
| Effective Radius (rts) | 5.03 | in |
Design Resources
- Column Capacity Calculator — Check HP18X204 as a pile
- Section Properties Database — Compare with other sections
- Steel Beam Sizes Reference — Full dimension table
- Steel Grades Reference — Material properties
Frequently Asked Questions
What is the weight of a HP18X204 pile? 204 lb/ft (303.6 kg/m).
What is the section modulus of HP18X204? Sx = 380 in³, Zx = 433 in³ (strong axis). Sy = 124 in³, Zy = 191 in³ (weak axis).
What steel grade is standard for HP18X204? ASTM A572 Grade 50 (Fy = 50 ksi) or A36 for HP-shapes. Verify with mill certificate.
What is the moment of inertia of HP18X204? Ix = 3480 in⁴ about the strong axis and Iy = 1120 in⁴ about the weak axis. The radius of gyration is rx = 7.6 in and ry = 4.31 in.
Related Pages
Educational reference only. Verify all section properties against the current AISC Manual and mill certificates before design. Results are PRELIMINARY — NOT FOR CONSTRUCTION.