L8X4X1/2 Steel Angle — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Leg Length (leg) | 8 | 20.32 cm |
| Leg Thickness (t) | 0.5 | 1.27 cm |
| Area (A) | 5.8 in² | 37.4 cm² |
| Weight | 19.6 lb/ft | 29.2 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 38.6 | 6.75 | in⁴ |
| Elastic Section Modulus (S) | 7.48 | 2.15 | in³ |
| Plastic Section Modulus (Z) | 13.1 | 3.91 | in³ |
| Radius of Gyration (r) | 2.58 | 1.08 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.501 | in⁴ |
| Warping Constant (Cw) | 1.8 | in⁶ |
Design Resources
- Section Properties Database — Compare with other sections
- Steel Angles Reference — Full angle dimension table
- Steel Grades Reference — Material properties
Frequently Asked Questions
What is the weight of a L8X4X1/2 angle? 19.6 lb/ft (29.2 kg/m).
What is the section modulus of L8X4X1/2? Sx = 7.48 in³, Zx = 13.1 in³ (strong axis). Sy = 2.15 in³, Zy = 3.91 in³ (weak axis).
What steel grade is standard for L8X4X1/2? ASTM A36 (Fy = 36 ksi) for angles. Verify with mill certificate.
What is the moment of inertia of L8X4X1/2? Ix = 38.6 in⁴ about the strong axis and Iy = 6.75 in⁴ about the weak axis. The radius of gyration is rx = 2.58 in and ry = 1.08 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.