HSS6.625X0.432 Steel Round HSS — Section Properties

Dimensions

Property Value Unit
Outer Diameter (OD) 6.63 168.4 mm
Wall Thickness (t) 0.432 11.0 mm
Area (A) 7.86 in² 50.7 cm²
Weight 28.6 lb/ft 42.6 kg/m

Elastic Section Properties

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 38.2 38.2 in⁴
Elastic Section Modulus (S) 11.5 11.5 in³
Plastic Section Modulus (Z) 15.6 15.6 in³
Radius of Gyration (r) 2.2 2.2 in

Torsional Properties

Property Value Unit
Torsional Constant (J) 76.4 in⁴
Warping Constant (Cw) 0 in⁶

Design Resources

Frequently Asked Questions

What is the weight of a HSS6.625X0.432 section? 28.6 lb/ft (42.6 kg/m).

What is the section modulus of HSS6.625X0.432? Sx = 11.5 in³, Zx = 15.6 in³ (strong axis). Sy = 11.5 in³, Zy = 15.6 in³ (weak axis).

What steel grade is standard for HSS6.625X0.432? ASTM A500 Grade C (Fy = 46 ksi) or Grade B (Fy = 42 ksi). Verify with mill certificate.

What is the moment of inertia of HSS6.625X0.432? Ix = 38.2 in⁴ about the strong axis and Iy = 38.2 in⁴ about the weak axis. The radius of gyration is rx = 2.2 in and ry = 2.2 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.