RHS 40x30x2.5 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 40x30 cal 13 (México) · Caño estructural 40x30 (Argentina)

The RHS 40x30x2.5 steel profile weighs 2.4 kg/m (1.63 lb/ft), has a depth of 40 mm (1.57 in), flange width 30 mm (1.18 in). Cross-sectional area: 308.905 mm². Moment of inertia Ix = 6.455 cm⁴, Iy = 4.104 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)	30 mm	1.18 in
Thickness (t)	2.5 mm	0.10 in
Fillet radius (r)	5 mm	0.20 in
Weight	2.4 kg/m	1.63 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	308.9 mm²	0.479 in²
Moment of inertia (Ix)	6.45 cm⁴	0.16 in⁴
Moment of inertia (Iy)	4.1 cm⁴	0.10 in⁴
Elastic section modulus (Sx)	3.23 cm³	0.197 in³
Elastic section modulus (Sy)	2.74 cm³	0.167 in³
Plastic section modulus (Zx)	4.03 cm³	0.246 in³
Plastic section modulus (Zy)	3.3 cm³	0.201 in³
Radius of gyration (rx)	1.45 cm	0.569 in
Radius of gyration (ry)	1.15 cm	0.454 in