HSS8X3X3/8 Steel Rectangular HSS — Section Properties

Dimensions

Property Value Unit
Height (h) 8 203.2 mm
Width (w) 3 76.2 mm
Wall Thickness (t) 0.375 9.5 mm
Area (A) 6.88 in² 44.4 cm²
Weight 24.93 lb/ft 37.1 kg/m

Elastic Section Properties

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 48.5 10 in⁴
Elastic Section Modulus (S) 12.1 6.63 in³
Plastic Section Modulus (Z) 16.1 7.88 in³
Radius of Gyration (r) 2.65 1.2 in

Torsional Properties

Property Value Unit
Torsional Constant (J) 28.5 in⁴
Warping Constant (Cw) 0 in⁶

Design Resources

Frequently Asked Questions

What is the weight of a HSS8X3X3/8 section? 24.93 lb/ft (37.1 kg/m).

What is the section modulus of HSS8X3X3/8? Sx = 12.1 in³, Zx = 16.1 in³ (strong axis). Sy = 6.63 in³, Zy = 7.88 in³ (weak axis).

What steel grade is standard for HSS8X3X3/8? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.

What is the moment of inertia of HSS8X3X3/8? Ix = 48.5 in⁴ about the strong axis and Iy = 10 in⁴ about the weak axis. The radius of gyration is rx = 2.65 in and ry = 1.2 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.