RHS 406x203x12.7 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 406x203x12.7 steel profile weighs 113.5 kg/m (76.24 lb/ft), has a depth of 406 mm (15.98 in), flange width 203 mm (7.99 in). Cross-sectional area: 14,408.082 mm². Moment of inertia Ix = 29,945.231 cm⁴, Iy = 10,128.52 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)	12.7 mm	0.50 in
Fillet radius (r)	25.4 mm	1.00 in
Weight	113.5 kg/m	76.24 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	14,408.08 mm²	22.333 in²
Moment of inertia (Ix)	29,945.23 cm⁴	719.43 in⁴
Moment of inertia (Iy)	10,128.52 cm⁴	243.34 in⁴
Elastic section modulus (Sx)	1,475.13 cm³	90.019 in³
Elastic section modulus (Sy)	997.88 cm³	60.895 in³
Plastic section modulus (Zx)	1,850.48 cm³	112.924 in³
Plastic section modulus (Zy)	1,140.35 cm³	69.589 in³
Radius of gyration (rx)	14.42 cm	5.676 in
Radius of gyration (ry)	8.38 cm	3.301 in