L4×3×3/8 angle
Detailing dimensions and section properties from the AISC Shapes Database, 16th Edition. Values are shown to the nearest 1/16 in. as they appear on a shop drawing.
L4×3×3/8 has a 4 in. long leg and a 3 in. short leg, 3/8 in. thick.
At 8.5 lb per foot it is one of the 5 L4×3 sizes, which run from 5.8 to 13.6 lb/ft.
For strong-axis bending its section modulus is Sx = 1.44 in³ and its moment of inertia Ix = 3.94 in⁴, with a plastic modulus Zx = 2.6 in³.
Detailing dimensions
| Long leg | 4" |
|---|---|
| Short leg | 3" |
| Thickness (t) | 3/8" |
| k (detailing) | 3/4" |
Section properties
| Weight | 8.5 lb/ft |
|---|---|
| Area (A) | 2.49 in² |
| Ix | 3.94 in⁴ |
| Sx | 1.44 in³ |
| Zx | 2.6 in³ |
| rx | 1.26 in |
| Iy | 1.89 in⁴ |
| Sy | 0.851 in³ |
| Zy | 1.52 in³ |
| ry | 0.873 in |
| J | 0.123 in⁴ |
Other L4×3 sizes
Same nominal size, different weight — useful when you are checking a substitution or a lighter section.
All L4×3 sizes and dimensions →
Similar weight angles
Comparable 8.5 lb/ft sections in other angle sizes.
Detailing values are rounded to the nearest 1/16 in. per the AISC Steel Construction Manual. Verify critical dimensions against the current Manual before fabrication. Need L4×3×3/8 cut, formed, or fabricated? Huntington Steel & Supply Co.
Browse more: Angles · Steel Beam Size Chart