HSS12X12X3/4 Steel Rectangular HSS — Section Properties

Dimensions

Property Value Unit
Height (h) 12 304.8 mm
Width (w) 12 304.8 mm
Wall Thickness (t) 0.75 19.0 mm
Area (A) 30.3 in² 195.5 cm²
Weight 109.9 lb/ft 163.5 kg/m

Elastic Section Properties

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 631 631 in⁴
Elastic Section Modulus (S) 105 105 in³
Plastic Section Modulus (Z) 127 127 in³
Radius of Gyration (r) 4.56 4.56 in

Torsional Properties

Property Value Unit
Torsional Constant (J) 1030 in⁴
Warping Constant (Cw) 0 in⁶

Design Resources

Frequently Asked Questions

What is the weight of a HSS12X12X3/4 section? 109.9 lb/ft (163.5 kg/m).

What is the section modulus of HSS12X12X3/4? Sx = 105 in³, Zx = 127 in³ (strong axis). Sy = 105 in³, Zy = 127 in³ (weak axis).

What steel grade is standard for HSS12X12X3/4? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.

What is the moment of inertia of HSS12X12X3/4? Ix = 631 in⁴ about the strong axis and Iy = 631 in⁴ about the weak axis. The radius of gyration is rx = 4.56 in and ry = 4.56 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.