HSS7×3×1/2 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.

HSS7×3×1/2 is a rectangular tube 7 in. by 3 in. with a 1/2 in. nominal wall.

At 28.43 lb per foot it is the heaviest 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 = 11.6 in³ and its moment of inertia Ix = 40.7 in⁴, with a plastic modulus Zx = 15.8 in³.

Detailing dimensions

Depth (Ht)7"
Width (B)3"
Nominal wall (t)1/2"

Section properties

Weight28.43 lb/ft
Area (A)7.88 in²
Ix40.7 in⁴
Sx11.6 in³
Zx15.8 in³
rx2.27 in
Iy10.2 in⁴
Sy6.8 in³
Zy8.46 in³
ry1.14 in
J28.6 in⁴

Other HSS7×3 sizes

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

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

All HSS7×3 sizes and dimensions →

Similar weight HSS shapes

Comparable 28.43 lb/ft sections in other HSS tube sizes.

HSS8×2×1/228.43 lb/ft · Sx 11.3 in³HSS6×4×1/228.43 lb/ft · Sx 11.3 in³HSS5×5×1/228.43 lb/ft · Sx 10.4 in³HSS7.500×0.37528.56 lb/ft · Sx 13.4 in³HSS8.625×0.32228.58 lb/ft · Sx 15.8 in³HSS6.625×0.43228.6 lb/ft · Sx 11.5 in³HSS10.750×0.25028.06 lb/ft · Sx 19.8 in³HSS14.000×0.18827.69 lb/ft · Sx 25.9 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 HSS7×3×1/2 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing