RHS 40x20x1.5 Cintac · Weight & Dimensions

Cintac, 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 16 (México) · Caño estructural 40x20 (Argentina)

The RHS 40x20x1.5 steel profile weighs 1.3 kg/m (0.87 lb/ft), has a depth of 40 mm (1.57 in), flange width 20 mm (0.79 in). Cross-sectional area: 165.206 mm². Moment of inertia Ix = 3.266 cm⁴, Iy = 1.097 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.5 mm ≈ 16 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	40 mm	1.57 in
Width (b)	20 mm	0.79 in
Thickness (t)	1.5 mm	0.06 in
Fillet radius (r)	3 mm	0.12 in
Weight	1.3 kg/m	0.87 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	165.21 mm²	0.256 in²
Moment of inertia (Ix)	3.27 cm⁴	0.08 in⁴
Moment of inertia (Iy)	1.1 cm⁴	0.03 in⁴
Elastic section modulus (Sx)	1.63 cm³	0.100 in³
Elastic section modulus (Sy)	1.1 cm³	0.067 in³
Plastic section modulus (Zx)	2.07 cm³	0.126 in³
Plastic section modulus (Zy)	1.27 cm³	0.078 in³
Radius of gyration (rx)	1.41 cm	0.554 in
Radius of gyration (ry)	0.81 cm	0.321 in