HSS3-1/2×2-1/2×1/8 square/rectangular HSS tube

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.

HSS3-1/2×2-1/2×1/8 is a rectangular tube 3 1/2 in. by 2 1/2 in. with a 1/8 in. nominal wall.

It weighs 4.75 lb per foot.

For strong-axis bending its section modulus is Sx = 1.28 in³ and its moment of inertia Ix = 2.23 in⁴, with a plastic modulus Zx = 1.54 in³.

Detailing dimensions

Depth (Ht)3 1/2"
Width (B)2 1/2"
Nominal wall (t)1/8"

Section properties

Weight4.75 lb/ft
Area (A)1.3 in²
Ix2.23 in⁴
Sx1.28 in³
Zx1.54 in³
rx1.31 in
Iy1.33 in⁴
Sy1.06 in³
Zy1.22 in³
ry1.01 in
J2.67 in⁴

Similar weight HSS shapes

Comparable 4.75 lb/ft sections in other HSS tube sizes.

HSS4×2×1/84.75 lb/ft · Sx 1.32 in³HSS3×3×1/84.75 lb/ft · Sx 1.19 in³HSS2.500×0.1884.65 lb/ft · Sx 0.692 in³HSS3.000×0.1524.63 lb/ft · Sx 0.865 in³HSS3×1-1/2×3/164.96 lb/ft · Sx 0.945 in³HSS2-1/2×2×3/164.96 lb/ft · Sx 0.894 in³HSS2-1/4×2-1/4×3/164.96 lb/ft · Sx 0.847 in³HSS3.500×0.1254.51 lb/ft · Sx 1.01 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 HSS3-1/2×2-1/2×1/8 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing