HP18X135 Steel HP-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 17.5 | 444.5 mm |
| Flange Width (bf) | 17.8 | 45.21 cm |
| Flange Thickness (tf) | 0.75 | 19.0 mm |
| Web Thickness (tw) | 0.75 | 19.0 mm |
| Area (A) | 39.9 in² | 257.4 cm² |
| Weight | 135 lb/ft | 200.9 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 2200 | 706 | in⁴ |
| Elastic Section Modulus (S) | 251 | 79.3 | in³ |
| Plastic Section Modulus (Z) | 281 | 122 | in³ |
| Radius of Gyration (r) | 7.43 | 4.21 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 9.12 | in⁴ |
| Warping Constant (Cw) | 49500 | in⁶ |
| Distance Between Flange Centroids (ho) | 16.8 | in |
| Effective Radius (rts) | 4.85 | in |
Design Resources
- Column Capacity Calculator — Check HP18X135 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 HP18X135 pile? 135 lb/ft (200.9 kg/m).
What is the section modulus of HP18X135? Sx = 251 in³, Zx = 281 in³ (strong axis). Sy = 79.3 in³, Zy = 122 in³ (weak axis).
What steel grade is standard for HP18X135? ASTM A572 Grade 50 (Fy = 50 ksi) or A36 for HP-shapes. Verify with mill certificate.
What is the moment of inertia of HP18X135? Ix = 2200 in⁴ about the strong axis and Iy = 706 in⁴ about the weak axis. The radius of gyration is rx = 7.43 in and ry = 4.21 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.