HSS12X8X3/16 Steel Rectangular HSS — Section Properties

Dimensions

Property Value Unit
Height (h) 12 304.8 mm
Width (w) 8 203.2 mm
Wall Thickness (t) 0.188 4.8 mm
Area (A) 6.76 in² 43.6 cm²
Weight 24.73 lb/ft 36.8 kg/m

Elastic Section Properties

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 140 75.7 in⁴
Elastic Section Modulus (S) 23.4 18.9 in³
Plastic Section Modulus (Z) 27.8 21.1 in³
Radius of Gyration (r) 4.56 3.35 in

Torsional Properties

Property Value Unit
Torsional Constant (J) 153 in⁴
Warping Constant (Cw) 0 in⁶

Design Resources

Frequently Asked Questions

What is the weight of a HSS12X8X3/16 section? 24.73 lb/ft (36.8 kg/m).

What is the section modulus of HSS12X8X3/16? Sx = 23.4 in³, Zx = 27.8 in³ (strong axis). Sy = 18.9 in³, Zy = 21.1 in³ (weak axis).

What steel grade is standard for HSS12X8X3/16? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.

What is the moment of inertia of HSS12X8X3/16? Ix = 140 in⁴ about the strong axis and Iy = 75.7 in⁴ about the weak axis. The radius of gyration is rx = 4.56 in and ry = 3.35 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.