RHS 40x25x1.5 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 16 (México) · Caño estructural 40x25 (Argentina)

The RHS 40x25x1.5 steel profile weighs 1.4 kg/m (0.95 lb/ft), has a depth of 40 mm (1.57 in), flange width 25 mm (0.98 in). Cross-sectional area: 180.206 mm². Moment of inertia Ix = 3.822 cm⁴, Iy = 1.839 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.5 mm ≈ 16 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	40 mm	1.57 in
Width (b)	25 mm	0.98 in
Thickness (t)	1.5 mm	0.06 in
Fillet radius (r)	3 mm	0.12 in
Weight	1.4 kg/m	0.95 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	180.21 mm²	0.279 in²
Moment of inertia (Ix)	3.82 cm⁴	0.09 in⁴
Moment of inertia (Iy)	1.84 cm⁴	0.04 in⁴
Elastic section modulus (Sx)	1.91 cm³	0.117 in³
Elastic section modulus (Sy)	1.47 cm³	0.090 in³
Plastic section modulus (Zx)	2.36 cm³	0.144 in³
Plastic section modulus (Zy)	1.7 cm³	0.104 in³
Radius of gyration (rx)	1.46 cm	0.573 in
Radius of gyration (ry)	1.01 cm	0.398 in