2L5×3×1/2×3/4SLBB double 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.
2L5×3×1/2×3/4SLBB has a 5 in. long leg and a 3 in. short leg, 1/2 in. thick, in contact back to back.
It is a double angle set with its short legs back-to-back.
At 25.6 lb per foot it is the heaviest of the 30 2L5×3 sizes, which run from 13.2 to 25.6 lb/ft.
For strong-axis bending its section modulus is Sx = 2.26 in³ and its moment of inertia Ix = 5.1 in⁴, with a plastic modulus Zx = 4.15 in³.
Detailing dimensions
| Long leg | 5" |
|---|---|
| Short leg | 3" |
| Thickness (t) | 1/2" |
Section properties
| Weight | 25.6 lb/ft |
|---|---|
| Area (A) | 7.5 in² |
| Ix | 5.1 in⁴ |
| Sx | 2.26 in³ |
| Zx | 4.15 in³ |
| rx | 0.8240000000000001 in |
| Iy | 52.3 in⁴ |
| Sy | 9.73 in³ |
| Zy | 15.9 in³ |
| ry | 2.64 in |
Other 2L5×3 sizes
Same nominal size, different weight — useful when you are checking a substitution or a lighter section.
All 2L5×3 sizes and dimensions →
Similar weight double angles
Comparable 25.6 lb/ft sections in other double 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 2L5×3×1/2×3/4SLBB cut, formed, or fabricated? Huntington Steel & Supply Co.
Browse more: Double angles · Steel Beam Size Chart