RHS 40x20x3 Tuboeuropa · Weight & Dimensions

Tuboeuropa, 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 40x20 cal 11 (México) · Caño estructural 40x20 (Argentina)

The RHS 40x20x3 steel profile weighs 2.4 kg/m (1.59 lb/ft), has a depth of 40 mm (1.57 in), flange width 20 mm (0.79 in). Cross-sectional area: 300.823 mm². Moment of inertia Ix = 5.208 cm⁴, Iy = 1.685 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3 mm ≈ 11 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	40 mm	1.57 in
Width (b)	20 mm	0.79 in
Thickness (t)	3 mm	0.12 in
Fillet radius (r)	6 mm	0.24 in
Weight	2.4 kg/m	1.59 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	300.82 mm²	0.466 in²
Moment of inertia (Ix)	5.21 cm⁴	0.13 in⁴
Moment of inertia (Iy)	1.68 cm⁴	0.04 in⁴
Elastic section modulus (Sx)	2.6 cm³	0.159 in³
Elastic section modulus (Sy)	1.68 cm³	0.103 in³
Plastic section modulus (Zx)	3.5 cm³	0.214 in³
Plastic section modulus (Zy)	2.12 cm³	0.129 in³
Radius of gyration (rx)	1.32 cm	0.518 in
Radius of gyration (ry)	0.75 cm	0.295 in