HSS8X2X1/4 Steel Rectangular HSS — Section Properties

Dimensions

Property Value Unit
Height (h) 8 203.2 mm
Width (w) 2 50.8 mm
Wall Thickness (t) 0.25 6.3 mm
Area (A) 4.3 in² 27.7 cm²
Weight 15.62 lb/ft 23.2 kg/m

Elastic Section Properties

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 28.5 2.94 in⁴
Elastic Section Modulus (S) 7.12 2.94 in³
Plastic Section Modulus (Z) 9.68 3.43 in³
Radius of Gyration (r) 2.57 0.827 in

Torsional Properties

Property Value Unit
Torsional Constant (J) 9.36 in⁴
Warping Constant (Cw) 0 in⁶

Design Resources

Frequently Asked Questions

What is the weight of a HSS8X2X1/4 section? 15.62 lb/ft (23.2 kg/m).

What is the section modulus of HSS8X2X1/4? Sx = 7.12 in³, Zx = 9.68 in³ (strong axis). Sy = 2.94 in³, Zy = 3.43 in³ (weak axis).

What steel grade is standard for HSS8X2X1/4? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.

What is the moment of inertia of HSS8X2X1/4? Ix = 28.5 in⁴ about the strong axis and Iy = 2.94 in⁴ about the weak axis. The radius of gyration is rx = 2.57 in and ry = 0.827 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.