HSS6×3×3/8 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.

HSS6×3×3/8 is a rectangular tube 6 in. by 3 in. with a 3/8 in. nominal wall.

At 19.82 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 = 7.57 in³ and its moment of inertia Ix = 22.7 in⁴, with a plastic modulus Zx = 9.9 in³.

Detailing dimensions

Depth (Ht)6"
Width (B)3"
Nominal wall (t)3/8"

Section properties

Weight19.82 lb/ft
Area (A)5.48 in²
Ix22.7 in⁴
Sx7.57 in³
Zx9.9 in³
rx2.04 in
Iy7.48 in⁴
Sy4.99 in³
Zy6.03 in³
ry1.17 in
J19.3 in⁴

Other HSS6×3 sizes

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

HSS6×3×1/8HSS6×3×3/16HSS6×3×1/4HSS6×3×5/16HSS6×3×1/2

All HSS6×3 sizes and dimensions →

Similar weight HSS shapes

Comparable 19.82 lb/ft sections in other HSS tube sizes.

HSS5×4×3/819.82 lb/ft · Sx 7.17 in³HSS4-1/2×4-1/2×3/819.82 lb/ft · Sx 6.79 in³HSS10.000×0.18819.72 lb/ft · Sx 13 in³HSS12×4×3/1619.63 lb/ft · Sx 15.3 in³HSS10×6×3/1619.63 lb/ft · Sx 14.9 in³HSS9×7×3/1619.63 lb/ft · Sx 14.4 in³HSS8×8×3/1619.63 lb/ft · Sx 13.6 in³HSS7.500×0.25019.38 lb/ft · Sx 9.37 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 HSS6×3×3/8 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing