HSS3-1/2×3-1/2×1/8 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.

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

It weighs 5.61 lb per foot.

For strong-axis bending its section modulus is Sx = 1.66 in³ and its moment of inertia Ix = 2.9 in⁴, with a plastic modulus Zx = 1.93 in³.

Detailing dimensions

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

Section properties

Weight5.61 lb/ft
Area (A)1.54 in²
Ix2.9 in⁴
Sx1.66 in³
Zx1.93 in³
rx1.37 in
Iy2.9 in⁴
Sy1.66 in³
Zy1.93 in³
ry1.37 in
J4.58 in⁴

Similar weight HSS shapes

Comparable 5.61 lb/ft sections in other HSS tube sizes.

HSS5×2×1/85.61 lb/ft · Sx 1.86 in³HSS4×3×1/85.61 lb/ft · Sx 1.76 in³HSS3-1/2×1-1/2×3/165.59 lb/ft · Sx 1.21 in³HSS3×2×3/165.59 lb/ft · Sx 1.18 in³HSS2-1/2×2-1/2×3/165.59 lb/ft · Sx 1.08 in³HSS3.000×0.1885.65 lb/ft · Sx 1.03 in³HSS2.375×0.2505.68 lb/ft · Sx 0.766 in³HSS2.875×0.2035.8 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 HSS3-1/2×3-1/2×1/8 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing