RHS 50x20x1.2 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 18 (México) · Caño estructural 50x20 (Argentina)

The RHS 50x20x1.2 steel profile weighs 1.2 kg/m (0.83 lb/ft), has a depth of 50 mm (1.97 in), flange width 20 mm (0.79 in). Cross-sectional area: 158.532 mm². Moment of inertia Ix = 4.788 cm⁴, Iy = 1.135 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.2 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	50 mm	1.97 in
Width (b)	20 mm	0.79 in
Thickness (t)	1.2 mm	0.05 in
Fillet radius (r)	2.4 mm	0.09 in
Weight	1.2 kg/m	0.83 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	158.53 mm²	0.246 in²
Moment of inertia (Ix)	4.79 cm⁴	0.12 in⁴
Moment of inertia (Iy)	1.14 cm⁴	0.03 in⁴
Elastic section modulus (Sx)	1.92 cm³	0.117 in³
Elastic section modulus (Sy)	1.14 cm³	0.069 in³
Plastic section modulus (Zx)	2.44 cm³	0.149 in³
Plastic section modulus (Zy)	1.28 cm³	0.078 in³
Radius of gyration (rx)	1.74 cm	0.684 in
Radius of gyration (ry)	0.85 cm	0.333 in