RHS 50x20x1.6 Acindar · Weight & Dimensions

Acindar, 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 50x20 cal 16 (México) · Caño estructural 50x20 (Argentina)

The RHS 50x20x1.6 steel profile weighs 1.6 kg/m (1.10 lb/ft), has a depth of 50 mm (1.97 in), flange width 20 mm (0.79 in). Cross-sectional area: 207.167 mm². Moment of inertia Ix = 6.081 cm⁴, Iy = 1.422 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.6 mm ≈ 16 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	50 mm	1.97 in
Width (b)	20 mm	0.79 in
Thickness (t)	1.6 mm	0.06 in
Fillet radius (r)	3.2 mm	0.13 in
Weight	1.6 kg/m	1.10 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	207.17 mm²	0.321 in²
Moment of inertia (Ix)	6.08 cm⁴	0.15 in⁴
Moment of inertia (Iy)	1.42 cm⁴	0.03 in⁴
Elastic section modulus (Sx)	2.43 cm³	0.148 in³
Elastic section modulus (Sy)	1.42 cm³	0.087 in³
Plastic section modulus (Zx)	3.14 cm³	0.192 in³
Plastic section modulus (Zy)	1.63 cm³	0.100 in³
Radius of gyration (rx)	1.71 cm	0.675 in
Radius of gyration (ry)	0.83 cm	0.326 in