RHS 40x25x2.5 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 40x25 cal 13 (México) · Caño estructural 40x25 (Argentina)

The RHS 40x25x2.5 steel profile weighs 2.2 kg/m (1.50 lb/ft), has a depth of 40 mm (1.57 in), flange width 25 mm (0.98 in). Cross-sectional area: 283.905 mm². Moment of inertia Ix = 5.575 cm⁴, Iy = 2.643 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.5 mm ≈ 12 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	40 mm	1.57 in
Width (b)	25 mm	0.98 in
Thickness (t)	2.5 mm	0.10 in
Fillet radius (r)	5 mm	0.20 in
Weight	2.2 kg/m	1.50 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	283.9 mm²	0.440 in²
Moment of inertia (Ix)	5.57 cm⁴	0.13 in⁴
Moment of inertia (Iy)	2.64 cm⁴	0.06 in⁴
Elastic section modulus (Sx)	2.79 cm³	0.170 in³
Elastic section modulus (Sy)	2.11 cm³	0.129 in³
Plastic section modulus (Zx)	3.56 cm³	0.217 in³
Plastic section modulus (Zy)	2.56 cm³	0.156 in³
Radius of gyration (rx)	1.4 cm	0.552 in
Radius of gyration (ry)	0.96 cm	0.380 in