RHS 40x25x1.2 Acindar · Weight & Dimensions

Acindar, 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 18 (México) · Caño estructural 40x25 (Argentina)

The RHS 40x25x1.2 steel profile weighs 1.1 kg/m (0.77 lb/ft), has a depth of 40 mm (1.57 in), flange width 25 mm (0.98 in). Cross-sectional area: 146.532 mm². Moment of inertia Ix = 3.177 cm⁴, Iy = 1.536 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.2 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	40 mm	1.57 in
Width (b)	25 mm	0.98 in
Thickness (t)	1.2 mm	0.05 in
Fillet radius (r)	2.4 mm	0.09 in
Weight	1.1 kg/m	0.77 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	146.53 mm²	0.227 in²
Moment of inertia (Ix)	3.18 cm⁴	0.08 in⁴
Moment of inertia (Iy)	1.54 cm⁴	0.04 in⁴
Elastic section modulus (Sx)	1.59 cm³	0.097 in³
Elastic section modulus (Sy)	1.23 cm³	0.075 in³
Plastic section modulus (Zx)	1.94 cm³	0.118 in³
Plastic section modulus (Zy)	1.4 cm³	0.086 in³
Radius of gyration (rx)	1.47 cm	0.580 in
Radius of gyration (ry)	1.02 cm	0.403 in