RHS 40x30x2.25 Tecnometal · Weight & Dimensions

Tecnometal, cold-formed sections (Brazil) · 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 40x30 cal 14 (México) · Caño estructural 40x30 (Argentina)

The RHS 40x30x2.25 steel profile weighs 2.2 kg/m (1.49 lb/ft), has a depth of 40 mm (1.57 in), flange width 30 mm (1.18 in). Cross-sectional area: 281.713 mm². Moment of inertia Ix = 5.994 cm⁴, Iy = 3.818 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.25 mm ≈ 13 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	40 mm	1.57 in
Width (b)	30 mm	1.18 in
Thickness (t)	2.3 mm	0.09 in
Fillet radius (r)	4.5 mm	0.18 in
Weight	2.2 kg/m	1.49 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	281.71 mm²	0.437 in²
Moment of inertia (Ix)	5.99 cm⁴	0.14 in⁴
Moment of inertia (Iy)	3.82 cm⁴	0.09 in⁴
Elastic section modulus (Sx)	3 cm³	0.183 in³
Elastic section modulus (Sy)	2.55 cm³	0.155 in³
Plastic section modulus (Zx)	3.71 cm³	0.226 in³
Plastic section modulus (Zy)	3.04 cm³	0.185 in³
Radius of gyration (rx)	1.46 cm	0.574 in
Radius of gyration (ry)	1.16 cm	0.458 in