HSS12×4×5/16 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.

HSS12×4×5/16 is a rectangular tube 12 in. by 4 in. with a 5/16 in. nominal wall.

At 31.84 lb per foot it is one of the 6 HSS12×4 sizes, which run from 19.63 to 59.32 lb/ft.

For strong-axis bending its section modulus is Sx = 24.1 in³ and its moment of inertia Ix = 144 in⁴, with a plastic modulus Zx = 31.3 in³.

Detailing dimensions

Depth (Ht)12"
Width (B)4"
Nominal wall (t)5/16"

Section properties

Weight31.84 lb/ft
Area (A)8.76 in²
Ix144 in⁴
Sx24.1 in³
Zx31.3 in³
rx4.06 in
Iy25.2 in⁴
Sy12.6 in³
Zy14.2 in³
ry1.7 in
J72.4 in⁴

Other HSS12×4 sizes

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

HSS12×4×3/16HSS12×4×1/4HSS12×4×3/8HSS12×4×1/2HSS12×4×5/8

All HSS12×4 sizes and dimensions →

Similar weight HSS shapes

Comparable 31.84 lb/ft sections in other HSS tube sizes.

HSS10×6×5/1631.84 lb/ft · Sx 23.5 in³HSS9×7×5/1631.84 lb/ft · Sx 22.6 in³HSS8×8×5/1631.84 lb/ft · Sx 21.4 in³HSS8×3×1/231.84 lb/ft · Sx 14.6 in³HSS7×4×1/231.84 lb/ft · Sx 14.5 in³HSS6×5×1/231.84 lb/ft · Sx 13.7 in³HSS12.000×0.25031.4 lb/ft · Sx 24.8 in³HSS10.000×0.31232.31 lb/ft · Sx 20.9 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 HSS12×4×5/16 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: HSS tube · Steel Beam Size Chart

Interactive drawing