L8X4X9/16 Steel Angle — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Leg Length (leg) | 8 | 20.32 cm |
| Leg Thickness (t) | 0.563 | 1.43 cm |
| Area (A) | 6.49 in² | 41.9 cm² |
| Weight | 21.9 lb/ft | 32.6 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 42.9 | 7.44 | in⁴ |
| Elastic Section Modulus (S) | 8.34 | 2.38 | in³ |
| Plastic Section Modulus (Z) | 14.6 | 4.39 | in³ |
| Radius of Gyration (r) | 2.57 | 1.07 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.704 | in⁴ |
| Warping Constant (Cw) | 2.53 | 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 L8X4X9/16 angle? 21.9 lb/ft (32.6 kg/m).
What is the section modulus of L8X4X9/16? Sx = 8.34 in³, Zx = 14.6 in³ (strong axis). Sy = 2.38 in³, Zy = 4.39 in³ (weak axis).
What steel grade is standard for L8X4X9/16? ASTM A36 (Fy = 36 ksi) for angles. Verify with mill certificate.
What is the moment of inertia of L8X4X9/16? Ix = 42.9 in⁴ about the strong axis and Iy = 7.44 in⁴ about the weak axis. The radius of gyration is rx = 2.57 in and ry = 1.07 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.