RHS 50x40x1.9 Tecnometal · Weight & Dimensions

Tecnometal, cold-formed sections (Brazil) · 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 50x40 cal 15 (México) · Caño estructural 50x40 (Argentina)

The RHS 50x40x1.9 steel profile weighs 2.5 kg/m (1.68 lb/ft), has a depth of 50 mm (1.97 in), flange width 40 mm (1.57 in). Cross-sectional area: 318.263 mm². Moment of inertia Ix = 11.355 cm⁴, Iy = 8.045 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.9 mm ≈ 14 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	50 mm	1.97 in
Width (b)	40 mm	1.57 in
Thickness (t)	1.9 mm	0.07 in
Fillet radius (r)	3.8 mm	0.15 in
Weight	2.5 kg/m	1.68 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	318.26 mm²	0.493 in²
Moment of inertia (Ix)	11.35 cm⁴	0.27 in⁴
Moment of inertia (Iy)	8.04 cm⁴	0.19 in⁴
Elastic section modulus (Sx)	4.54 cm³	0.277 in³
Elastic section modulus (Sy)	4.02 cm³	0.245 in³
Plastic section modulus (Zx)	5.45 cm³	0.333 in³
Plastic section modulus (Zy)	4.68 cm³	0.286 in³
Radius of gyration (rx)	1.89 cm	0.744 in
Radius of gyration (ry)	1.59 cm	0.626 in