L4X3X3/8 Steel Angle — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Leg Length (leg) | 4 | 10.16 cm |
| Leg Thickness (t) | 0.375 | 0.95 cm |
| Area (A) | 2.49 in² | 16.1 cm² |
| Weight | 8.5 lb/ft | 12.6 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 3.94 | 1.89 | in⁴ |
| Elastic Section Modulus (S) | 1.44 | 0.851 | in³ |
| Plastic Section Modulus (Z) | 2.6 | 1.52 | in³ |
| Radius of Gyration (r) | 1.26 | 0.873 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.123 | in⁴ |
| Warping Constant (Cw) | 0.114 | 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 L4X3X3/8 angle? 8.5 lb/ft (12.6 kg/m).
What is the section modulus of L4X3X3/8? Sx = 1.44 in³, Zx = 2.6 in³ (strong axis). Sy = 0.851 in³, Zy = 1.52 in³ (weak axis).
What steel grade is standard for L4X3X3/8? ASTM A36 (Fy = 36 ksi) for angles. Verify with mill certificate.
What is the moment of inertia of L4X3X3/8? Ix = 3.94 in⁴ about the strong axis and Iy = 1.89 in⁴ about the weak axis. The radius of gyration is rx = 1.26 in and ry = 0.873 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.