2L3-1/2×2-1/2×1/2×3/8LLBB 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.

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

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

It weighs 18.8 lb per foot.

For strong-axis bending its section modulus is Sx = 2.82 in³ and its moment of inertia Ix = 6.48 in⁴, with a plastic modulus Zx = 5.04 in³.

Detailing dimensions

Long leg3 1/2"
Short leg2 1/2"
Thickness (t)1/2"

Section properties

Weight18.8 lb/ft
Area (A)5.54 in²
Ix6.48 in⁴
Sx2.82 in³
Zx5.04 in³
rx1.08 in
Iy7.07 in⁴
Sy2.63 in³
Zy4.92 in³
ry1.13 in

Similar weight double angles

Comparable 18.8 lb/ft sections in other double angle sizes.

2L3×3×1/218.8 lb/ft · Sx 2.12 in³2L3×3×1/2×3/818.8 lb/ft · Sx 2.12 in³2L3×3×1/2×3/418.8 lb/ft · Sx 2.12 in³2L3-1/2×2-1/2×1/2LLBB18.8 lb/ft · Sx 2.82 in³2L3-1/2×2-1/2×1/2×3/4LLBB18.8 lb/ft · Sx 2.82 in³2L3-1/2×2-1/2×1/2SLBB18.8 lb/ft · Sx 1.51 in³2L3-1/2×2-1/2×1/2×3/8SLBB18.8 lb/ft · Sx 1.51 in³2L3-1/2×2-1/2×1/2×3/4SLBB18.8 lb/ft · Sx 1.51 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 2L3-1/2×2-1/2×1/2×3/8LLBB cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: Double angles · Steel Beam Size Chart

Interactive drawing