HSS6×3×5/16 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.

HSS6×3×5/16 is a rectangular tube 6 in. by 3 in. with a 5/16 in. nominal wall.

At 16.96 lb per foot it is one of the 6 HSS6×3 sizes, which run from 7.31 to 25.03 lb/ft.

For strong-axis bending its section modulus is Sx = 6.69 in³ and its moment of inertia Ix = 20.1 in⁴, with a plastic modulus Zx = 8.61 in³.

Detailing dimensions

Depth (Ht)6"
Width (B)3"
Nominal wall (t)5/16"

Section properties

Weight16.96 lb/ft
Area (A)4.68 in²
Ix20.1 in⁴
Sx6.69 in³
Zx8.61 in³
rx2.07 in
Iy6.67 in⁴
Sy4.45 in³
Zy5.27 in³
ry1.19 in
J16.9 in⁴

Other HSS6×3 sizes

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

HSS6×3×1/8HSS6×3×3/16HSS6×3×1/4HSS6×3×3/8HSS6×3×1/2

All HSS6×3 sizes and dimensions →

Similar weight HSS shapes

Comparable 16.96 lb/ft sections in other HSS tube sizes.

HSS5×4×5/1616.96 lb/ft · Sx 6.32 in³HSS4-1/2×4-1/2×5/1616.96 lb/ft · Sx 6 in³HSS8.625×0.18816.96 lb/ft · Sx 9.57 in³HSS6.625×0.25017.04 lb/ft · Sx 7.22 in³HSS12×2×3/1617.08 lb/ft · Sx 11.2 in³HSS10×4×3/1617.08 lb/ft · Sx 11.6 in³HSS9×5×3/1617.08 lb/ft · Sx 11.4 in³HSS8×6×3/1617.08 lb/ft · Sx 10.9 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 HSS6×3×5/16 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing