2L5×3-1/2×1/2×3/4SLBB 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.

2L5×3-1/2×1/2×3/4SLBB has a 5 in. long leg and a 3 1/2 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.

It weighs 27.2 lb per foot.

For strong-axis bending its section modulus is Sx = 3.09 in³ and its moment of inertia Ix = 8.04 in⁴, with a plastic modulus Zx = 5.57 in³.

Detailing dimensions

Long leg5"
Short leg3 1/2"
Thickness (t)1/2"

Section properties

Weight27.2 lb/ft
Area (A)8 in²
Ix8.04 in⁴
Sx3.09 in³
Zx5.57 in³
rx1 in
Iy52.8 in⁴
Sy9.82 in³
Zy16.2 in³
ry2.57 in

Similar weight double angles

Comparable 27.2 lb/ft sections in other double angle sizes.

2L7×4×3/8LLBB27.2 lb/ft · Sx 8.84 in³2L7×4×3/8×3/8LLBB27.2 lb/ft · Sx 8.84 in³2L7×4×3/8×3/4LLBB27.2 lb/ft · Sx 8.84 in³2L5×3-1/2×1/2LLBB27.2 lb/ft · Sx 5.94 in³2L5×3-1/2×1/2×3/8LLBB27.2 lb/ft · Sx 5.94 in³2L5×3-1/2×1/2×3/4LLBB27.2 lb/ft · Sx 5.94 in³2L4×3×5/8LLBB27.2 lb/ft · Sx 4.56 in³2L4×3×5/8×3/8LLBB27.2 lb/ft · Sx 4.56 in³

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 2L5×3-1/2×1/2×3/4SLBB cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: Double angles · Steel Beam Size Chart

Interactive drawing