2L3-1/2×3×3/8LLBB 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.

2L3-1/2×3×3/8LLBB has a 3 1/2 in. long leg and a 3 in. short leg, 3/8 in. thick, in contact back to back.

It is a double angle set with its long legs back-to-back.

It weighs 15.8 lb per foot.

For strong-axis bending its section modulus is Sx = 2.24 in³ and its moment of inertia Ix = 5.46 in⁴, with a plastic modulus Zx = 4.06 in³.

Detailing dimensions

Long leg3 1/2"
Short leg3"
Thickness (t)3/8"

Section properties

Weight15.8 lb/ft
Area (A)4.64 in²
Ix5.46 in⁴
Sx2.24 in³
Zx4.06 in³
rx1.09 in
Iy6.79 in⁴
Sy2.26 in³
Zy3.82 in³
ry1.21 in

Similar weight double angles

Comparable 15.8 lb/ft sections in other double angle sizes.

2L3-1/2×3×3/8×3/8LLBB15.8 lb/ft · Sx 2.24 in³2L3-1/2×3×3/8×3/4LLBB15.8 lb/ft · Sx 2.24 in³2L3-1/2×3×3/8SLBB15.8 lb/ft · Sx 1.69 in³2L3-1/2×3×3/8×3/8SLBB15.8 lb/ft · Sx 1.69 in³2L3-1/2×3×3/8×3/4SLBB15.8 lb/ft · Sx 1.69 in³2L2-1/2×2-1/2×1/215.4 lb/ft · Sx 1.43 in³2L2-1/2×2-1/2×1/2×3/815.4 lb/ft · Sx 1.43 in³2L2-1/2×2-1/2×1/2×3/415.4 lb/ft · Sx 1.43 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 2L3-1/2×3×3/8LLBB cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: Double angles · Steel Beam Size Chart

Interactive drawing