L5×3×1/2 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.
L5×3×1/2 has a 5 in. long leg and a 3 in. short leg, 1/2 in. thick.
At 12.8 lb per foot it is the heaviest of the 5 L5×3 sizes, which run from 6.6 to 12.8 lb/ft.
For strong-axis bending its section modulus is Sx = 2.89 in³ and its moment of inertia Ix = 9.43 in⁴, with a plastic modulus Zx = 5.12 in³.
Detailing dimensions
| Long leg | 5" |
|---|---|
| Short leg | 3" |
| Thickness (t) | 1/2" |
| k (detailing) | 15/16" |
Section properties
| Weight | 12.8 lb/ft |
|---|---|
| Area (A) | 3.75 in² |
| Ix | 9.43 in⁴ |
| Sx | 2.89 in³ |
| Zx | 5.12 in³ |
| rx | 1.58 in |
| Iy | 2.55 in⁴ |
| Sy | 1.13 in³ |
| Zy | 2.08 in³ |
| ry | 0.824 in |
| J | 0.322 in⁴ |
Other L5×3 sizes
Same nominal size, different weight — useful when you are checking a substitution or a lighter section.
All L5×3 sizes and dimensions →
Similar weight angles
Comparable 12.8 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 L5×3×1/2 cut, formed, or fabricated? Huntington Steel & Supply Co.
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