HSS4X3X5/16 Steel Rectangular HSS — Section Properties

Dimensions

Property Value Unit
Height (h) 4 101.6 mm
Width (w) 3 76.2 mm
Wall Thickness (t) 0.313 7.9 mm
Area (A) 3.52 in² 22.7 cm²
Weight 12.7 lb/ft 18.9 kg/m

Elastic Section Properties

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 7.14 4.52 in⁴
Elastic Section Modulus (S) 3.57 3.02 in³
Plastic Section Modulus (Z) 4.51 3.69 in³
Radius of Gyration (r) 1.42 1.13 in

Torsional Properties

Property Value Unit
Torsional Constant (J) 9.41 in⁴
Warping Constant (Cw) 0 in⁶

Design Resources

Frequently Asked Questions

What is the weight of a HSS4X3X5/16 section? 12.7 lb/ft (18.9 kg/m).

What is the section modulus of HSS4X3X5/16? Sx = 3.57 in³, Zx = 4.51 in³ (strong axis). Sy = 3.02 in³, Zy = 3.69 in³ (weak axis).

What steel grade is standard for HSS4X3X5/16? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.

What is the moment of inertia of HSS4X3X5/16? Ix = 7.14 in⁴ about the strong axis and Iy = 4.52 in⁴ about the weak axis. The radius of gyration is rx = 1.42 in and ry = 1.13 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.