RHS 100x40x2 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 100x40 cal 15 (México) · Caño estructural 100x40 (Argentina)

The RHS 100x40x2 steel profile weighs 4.2 kg/m (2.82 lb/ft), has a depth of 100 mm (3.94 in), flange width 40 mm (1.57 in). Cross-sectional area: 533.699 mm². Moment of inertia Ix = 65.376 cm⁴, Iy = 15.612 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2 mm ≈ 14 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	40 mm	1.57 in
Thickness (t)	2 mm	0.08 in
Fillet radius (r)	4 mm	0.16 in
Weight	4.2 kg/m	2.82 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	533.7 mm²	0.827 in²
Moment of inertia (Ix)	65.38 cm⁴	1.57 in⁴
Moment of inertia (Iy)	15.61 cm⁴	0.38 in⁴
Elastic section modulus (Sx)	13.08 cm³	0.798 in³
Elastic section modulus (Sy)	7.81 cm³	0.476 in³
Plastic section modulus (Zx)	16.54 cm³	1.010 in³
Plastic section modulus (Zy)	8.69 cm³	0.531 in³
Radius of gyration (rx)	3.5 cm	1.378 in
Radius of gyration (ry)	1.71 cm	0.673 in