HSS12X4X3/8 Steel Rectangular HSS — Section Properties

Dimensions

Property Value Unit
Height (h) 12 304.8 mm
Width (w) 4 101.6 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) 168 28.9 in⁴
Elastic Section Modulus (S) 28 14.5 in³
Plastic Section Modulus (Z) 36.7 16.6 in³
Radius of Gyration (r) 4.02 1.67 in

Torsional Properties

Property Value Unit
Torsional Constant (J) 84.1 in⁴
Warping Constant (Cw) 0 in⁶

Design Resources

Frequently Asked Questions

What is the weight of a HSS12X4X3/8 section? 37.69 lb/ft (56.1 kg/m).

What is the section modulus of HSS12X4X3/8? Sx = 28 in³, Zx = 36.7 in³ (strong axis). Sy = 14.5 in³, Zy = 16.6 in³ (weak axis).

What steel grade is standard for HSS12X4X3/8? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.

What is the moment of inertia of HSS12X4X3/8? Ix = 168 in⁴ about the strong axis and Iy = 28.9 in⁴ about the weak axis. The radius of gyration is rx = 4.02 in and ry = 1.67 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.