SHS 406x406x7.9 IMCA · Weight & Dimensions

IMCA, cold-formed sections · Square Hollow Section

Square Hollow Sections (SHS) are tubular profiles with equal sides, ideal for columns and compression members due to their uniform buckling resistance in all directions.

Also known as: PTR 406x406 (México) · Caño estructural 406x406 (Argentina)

The SHS 406x406x7.9 steel profile weighs 98.3 kg/m (66.02 lb/ft), has a depth of 406 mm (15.98 in), flange width 406 mm (15.98 in). Cross-sectional area: 12,419.24 mm². Moment of inertia Ix = 32,589.142 cm⁴, Iy = 32,589.142 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	406 mm	15.98 in
Width (b)	406 mm	15.98 in
Thickness (t)	7.9 mm	0.31 in
Fillet radius (r)	15.8 mm	0.62 in
Weight	98.3 kg/m	66.02 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	12,419.24 mm²	19.250 in²
Moment of inertia (Ix)	32,589.14 cm⁴	782.95 in⁴
Moment of inertia (Iy)	32,589.14 cm⁴	782.95 in⁴
Elastic section modulus (Sx)	1,605.38 cm³	97.966 in³
Elastic section modulus (Sy)	1,605.38 cm³	97.966 in³
Plastic section modulus (Zx)	1,845.89 cm³	112.644 in³
Plastic section modulus (Zy)	1,845.89 cm³	112.644 in³
Radius of gyration (rx)	16.2 cm	6.378 in
Radius of gyration (ry)	16.2 cm	6.378 in