RHS 90x40x2 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 90x40 cal 15 (México) · Caño estructural 90x40 (Argentina)

The RHS 90x40x2 steel profile weighs 3.9 kg/m (2.61 lb/ft), has a depth of 90 mm (3.54 in), flange width 40 mm (1.57 in). Cross-sectional area: 493.699 mm². Moment of inertia Ix = 50.132 cm⁴, Iy = 14.167 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	90 mm	3.54 in
Width (b)	40 mm	1.57 in
Thickness (t)	2 mm	0.08 in
Fillet radius (r)	4 mm	0.16 in
Weight	3.9 kg/m	2.61 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	493.7 mm²	0.765 in²
Moment of inertia (Ix)	50.13 cm⁴	1.20 in⁴
Moment of inertia (Iy)	14.17 cm⁴	0.34 in⁴
Elastic section modulus (Sx)	11.14 cm³	0.680 in³
Elastic section modulus (Sy)	7.08 cm³	0.432 in³
Plastic section modulus (Zx)	13.98 cm³	0.853 in³
Plastic section modulus (Zy)	7.93 cm³	0.484 in³
Radius of gyration (rx)	3.19 cm	1.255 in
Radius of gyration (ry)	1.69 cm	0.667 in