HSS9X7X3/8 Steel Rectangular HSS — Section Properties

Dimensions

Property Value Unit
Height (h) 9 228.6 mm
Width (w) 7 177.8 mm
Wall Thickness (t) 0.375 9.5 mm
Area (A) 10.4 in² 67.1 cm²
Weight 37.69 lb/ft 56.1 kg/m

Elastic Section Properties

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 119 80.4 in⁴
Elastic Section Modulus (S) 26.4 23 in³
Plastic Section Modulus (Z) 31.8 26.7 in³
Radius of Gyration (r) 3.38 2.78 in

Torsional Properties

Property Value Unit
Torsional Constant (J) 154 in⁴
Warping Constant (Cw) 0 in⁶

Design Resources

Frequently Asked Questions

What is the weight of a HSS9X7X3/8 section? 37.69 lb/ft (56.1 kg/m).

What is the section modulus of HSS9X7X3/8? Sx = 26.4 in³, Zx = 31.8 in³ (strong axis). Sy = 23 in³, Zy = 26.7 in³ (weak axis).

What steel grade is standard for HSS9X7X3/8? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.

What is the moment of inertia of HSS9X7X3/8? Ix = 119 in⁴ about the strong axis and Iy = 80.4 in⁴ about the weak axis. The radius of gyration is rx = 3.38 in and ry = 2.78 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.