RHS 20x10x0.9 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 20x10 cal 18 (México) · Caño estructural 20x10 (Argentina)

The RHS 20x10x0.9 steel profile weighs 0.4 kg/m (0.26 lb/ft), has a depth of 20 mm (0.79 in), flange width 10 mm (0.39 in). Cross-sectional area: 48.674 mm². Moment of inertia Ix = 0.235 cm⁴, Iy = 0.078 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 0.9 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	20 mm	0.79 in
Width (b)	10 mm	0.39 in
Thickness (t)	0.9 mm	0.04 in
Fillet radius (r)	1.8 mm	0.07 in
Weight	0.4 kg/m	0.26 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	48.67 mm²	0.075 in²
Moment of inertia (Ix)	0.23 cm⁴	0.01 in⁴
Moment of inertia (Iy)	0.08 cm⁴	0.00 in⁴
Elastic section modulus (Sx)	0.23 cm³	0.014 in³
Elastic section modulus (Sy)	0.16 cm³	0.010 in³
Plastic section modulus (Zx)	0.3 cm³	0.018 in³
Plastic section modulus (Zy)	0.18 cm³	0.011 in³
Radius of gyration (rx)	0.69 cm	0.273 in
Radius of gyration (ry)	0.4 cm	0.158 in