HSS7×3×3/8 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.

HSS7×3×3/8 is a rectangular tube 7 in. by 3 in. with a 3/8 in. nominal wall.

At 22.37 lb per foot it is one of the 6 HSS7×3 sizes, which run from 8.16 to 28.43 lb/ft.

For strong-axis bending its section modulus is Sx = 9.73 in³ and its moment of inertia Ix = 34.1 in⁴, with a plastic modulus Zx = 12.8 in³.

Detailing dimensions

Depth (Ht)7"
Width (B)3"
Nominal wall (t)3/8"

Section properties

Weight22.37 lb/ft
Area (A)6.18 in²
Ix34.1 in⁴
Sx9.73 in³
Zx12.8 in³
rx2.35 in
Iy8.71 in⁴
Sy5.81 in³
Zy6.95 in³
ry1.19 in
J23.9 in⁴

Other HSS7×3 sizes

Same nominal size, different weight — useful when you are checking a substitution or a lighter section.

HSS7×3×1/8HSS7×3×3/16HSS7×3×1/4HSS7×3×5/16HSS7×3×1/2

All HSS7×3 sizes and dimensions →

Similar weight HSS shapes

Comparable 22.37 lb/ft sections in other HSS tube sizes.

HSS8×2×3/822.37 lb/ft · Sx 9.56 in³HSS6×4×3/822.37 lb/ft · Sx 9.43 in³HSS5×5×3/822.37 lb/ft · Sx 8.68 in³HSS8.625×0.25022.38 lb/ft · Sx 12.5 in³HSS12×2×1/422.42 lb/ft · Sx 14.5 in³HSS10×4×1/422.42 lb/ft · Sx 14.9 in³HSS9×5×1/422.42 lb/ft · Sx 14.7 in³HSS8×6×1/422.42 lb/ft · Sx 14.2 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 HSS7×3×3/8 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing