HSS9×3×5/16 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.

HSS9×3×5/16 is a rectangular tube 9 in. by 3 in. with a 5/16 in. nominal wall.

At 23.34 lb per foot it is one of the 5 HSS9×3 sizes, which run from 14.53 to 35.24 lb/ft.

For strong-axis bending its section modulus is Sx = 12.8 in³ and its moment of inertia Ix = 57.7 in⁴, with a plastic modulus Zx = 16.9 in³.

Detailing dimensions

Depth (Ht)9"
Width (B)3"
Nominal wall (t)5/16"

Section properties

Weight23.34 lb/ft
Area (A)6.43 in²
Ix57.7 in⁴
Sx12.8 in³
Zx16.9 in³
rx3 in
Iy9.88 in⁴
Sy6.59 in³
Zy7.63 in³
ry1.24 in
J28.9 in⁴

Other HSS9×3 sizes

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

HSS9×3×3/16HSS9×3×1/4HSS9×3×3/8HSS9×3×1/2

All HSS9×3 sizes and dimensions →

Similar weight HSS shapes

Comparable 23.34 lb/ft sections in other HSS tube sizes.

HSS10×2×5/1623.34 lb/ft · Sx 12.5 in³HSS8×4×5/1623.34 lb/ft · Sx 12.8 in³HSS7×5×5/1623.34 lb/ft · Sx 12.3 in³HSS6×6×5/1623.34 lb/ft · Sx 11.4 in³HSS7.500×0.31223.97 lb/ft · Sx 11.4 in³HSS5.000×0.50024.05 lb/ft · Sx 6.88 in³HSS12×3×1/424.12 lb/ft · Sx 17.2 in³HSS10×5×1/424.12 lb/ft · Sx 17.2 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 HSS9×3×5/16 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing