RHS 30x20x3 Tecnometal · Weight & Dimensions

Tecnometal, cold-formed sections (Italy) · 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 30x20 cal 11 (México) · Caño estructural 30x20 (Argentina)

The RHS 30x20x3 steel profile weighs 1.9 kg/m (1.27 lb/ft), has a depth of 30 mm (1.18 in), flange width 20 mm (0.79 in). Cross-sectional area: 240.823 mm². Moment of inertia Ix = 2.406 cm⁴, Iy = 1.247 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3 mm ≈ 11 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	30 mm	1.18 in
Width (b)	20 mm	0.79 in
Thickness (t)	3 mm	0.12 in
Fillet radius (r)	6 mm	0.24 in
Weight	1.9 kg/m	1.27 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	240.82 mm²	0.373 in²
Moment of inertia (Ix)	2.41 cm⁴	0.06 in⁴
Moment of inertia (Iy)	1.25 cm⁴	0.03 in⁴
Elastic section modulus (Sx)	1.6 cm³	0.098 in³
Elastic section modulus (Sy)	1.25 cm³	0.076 in³
Plastic section modulus (Zx)	2.15 cm³	0.131 in³
Plastic section modulus (Zy)	1.61 cm³	0.098 in³
Radius of gyration (rx)	1 cm	0.394 in
Radius of gyration (ry)	0.72 cm	0.283 in