HSS8X8X1/2 Steel Rectangular HSS — Section Properties

Dimensions

Property Value Unit
Height (h) 8 203.2 mm
Width (w) 8 203.2 mm
Wall Thickness (t) 0.5 12.7 mm
Area (A) 13.5 in² 87.1 cm²
Weight 48.85 lb/ft 72.7 kg/m

Elastic Section Properties

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 125 125 in⁴
Elastic Section Modulus (S) 31.2 31.2 in³
Plastic Section Modulus (Z) 37.5 37.5 in³
Radius of Gyration (r) 3.04 3.04 in

Torsional Properties

Property Value Unit
Torsional Constant (J) 204 in⁴
Warping Constant (Cw) 0 in⁶

Design Resources

Frequently Asked Questions

What is the weight of a HSS8X8X1/2 section? 48.85 lb/ft (72.7 kg/m).

What is the section modulus of HSS8X8X1/2? Sx = 31.2 in³, Zx = 37.5 in³ (strong axis). Sy = 31.2 in³, Zy = 37.5 in³ (weak axis).

What steel grade is standard for HSS8X8X1/2? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.

What is the moment of inertia of HSS8X8X1/2? Ix = 125 in⁴ about the strong axis and Iy = 125 in⁴ about the weak axis. The radius of gyration is rx = 3.04 in and ry = 3.04 in.

Related Pages


Educational reference only. Verify all section properties against the current AISC Manual and mill certificates before design. Results are PRELIMINARY — NOT FOR CONSTRUCTION.