RHS 20x10x1 Hiasa · Weight & Dimensions

Hiasa, 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 20x10x1 steel profile weighs 0.4 kg/m (0.28 lb/ft), has a depth of 20 mm (0.79 in), flange width 10 mm (0.39 in). Cross-sectional area: 53.425 mm². Moment of inertia Ix = 0.253 cm⁴, Iy = 0.084 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1 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)	1 mm	0.04 in
Fillet radius (r)	2 mm	0.08 in
Weight	0.4 kg/m	0.28 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	53.42 mm²	0.083 in²
Moment of inertia (Ix)	0.25 cm⁴	0.01 in⁴
Moment of inertia (Iy)	0.08 cm⁴	0.00 in⁴
Elastic section modulus (Sx)	0.25 cm³	0.015 in³
Elastic section modulus (Sy)	0.17 cm³	0.010 in³
Plastic section modulus (Zx)	0.33 cm³	0.020 in³
Plastic section modulus (Zy)	0.2 cm³	0.012 in³
Radius of gyration (rx)	0.69 cm	0.271 in
Radius of gyration (ry)	0.4 cm	0.156 in