HSS18×10×1/2 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.

HSS18×10×1/2 is a rectangular tube 18 in. by 10 in. with a 1/2 in. nominal wall.

At 89.68 lb per foot it is one of the 5 HSS18×10 sizes, which run from 46.24 to 110.36 lb/ft.

For strong-axis bending its section modulus is Sx = 117 in³ and its moment of inertia Ix = 1060 in⁴, with a plastic modulus Zx = 144 in³.

Detailing dimensions

Depth (Ht)18"
Width (B)10"
Nominal wall (t)1/2"

Section properties

Weight89.68 lb/ft
Area (A)24.6 in²
Ix1060 in⁴
Sx117 in³
Zx144 in³
rx6.55 in
Iy425 in⁴
Sy85 in³
Zy96.2 in³
ry4.16 in
J977 in⁴

Other HSS18×10 sizes

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

HSS18×10×1/4HSS18×10×5/16HSS18×10×3/8HSS18×10×5/8

All HSS18×10 sizes and dimensions →

Similar weight HSS shapes

Comparable 89.68 lb/ft sections in other HSS tube sizes.

HSS20×8×1/289.68 lb/ft · Sx 119 in³HSS16×12×1/289.68 lb/ft · Sx 113 in³HSS14×14×1/289.68 lb/ft · Sx 106 in³HSS10×10×3/489.5 lb/ft · Sx 69.4 in³HSS14.000×0.62589.36 lb/ft · Sx 78.9 in³HSS24×12×3/888.73 lb/ft · Sx 155 in³HSS22×14×3/888.73 lb/ft · Sx 152 in³HSS20×16×3/888.73 lb/ft · Sx 147 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 HSS18×10×1/2 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing