HSS9X9X1/2 Steel Rectangular HSS — Section Properties

Dimensions

Property Value Unit
Height (h) 9 228.6 mm
Width (w) 9 228.6 mm
Wall Thickness (t) 0.5 12.7 mm
Area (A) 15.3 in² 98.7 cm²
Weight 55.66 lb/ft 82.8 kg/m

Elastic Section Properties

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 183 183 in⁴
Elastic Section Modulus (S) 40.6 40.6 in³
Plastic Section Modulus (Z) 48.4 48.4 in³
Radius of Gyration (r) 3.45 3.45 in

Torsional Properties

Property Value Unit
Torsional Constant (J) 296 in⁴
Warping Constant (Cw) 0 in⁶

Design Resources

Frequently Asked Questions

What is the weight of a HSS9X9X1/2 section? 55.66 lb/ft (82.8 kg/m).

What is the section modulus of HSS9X9X1/2? Sx = 40.6 in³, Zx = 48.4 in³ (strong axis). Sy = 40.6 in³, Zy = 48.4 in³ (weak axis).

What steel grade is standard for HSS9X9X1/2? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.

What is the moment of inertia of HSS9X9X1/2? Ix = 183 in⁴ about the strong axis and Iy = 183 in⁴ about the weak axis. The radius of gyration is rx = 3.45 in and ry = 3.45 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.