RHS 406x203x9.5 IMCA · Weight & Dimensions

IMCA, cold-formed sections · Rectangular Hollow Section

Rectangular Hollow Sections (RHS) are tubular profiles with excellent torsional resistance and aesthetic appeal. Used for columns, trusses, and exposed structural elements.

Also known as: PTR 406x203 (México) · Caño estructural 406x203 (Argentina)

The RHS 406x203x9.5 steel profile weighs 86.6 kg/m (58.20 lb/ft), has a depth of 406 mm (15.98 in), flange width 203 mm (7.99 in). Cross-sectional area: 10,977.586 mm². Moment of inertia Ix = 23,398.393 cm⁴, Iy = 7,981.979 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	406 mm	15.98 in
Width (b)	203 mm	7.99 in
Thickness (t)	9.5 mm	0.37 in
Fillet radius (r)	19 mm	0.75 in
Weight	86.6 kg/m	58.20 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	10,977.59 mm²	17.015 in²
Moment of inertia (Ix)	23,398.39 cm⁴	562.15 in⁴
Moment of inertia (Iy)	7,981.98 cm⁴	191.77 in⁴
Elastic section modulus (Sx)	1,152.63 cm³	70.338 in³
Elastic section modulus (Sy)	786.4 cm³	47.989 in³
Plastic section modulus (Zx)	1,429.29 cm³	87.221 in³
Plastic section modulus (Zy)	883.97 cm³	53.943 in³
Radius of gyration (rx)	14.6 cm	5.748 in
Radius of gyration (ry)	8.53 cm	3.357 in