RHS 40x35x1.2 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 40x35 cal 18 (México) · Caño estructural 40x35 (Argentina)

The RHS 40x35x1.2 steel profile weighs 1.3 kg/m (0.90 lb/ft), has a depth of 40 mm (1.57 in), flange width 35 mm (1.38 in). Cross-sectional area: 170.532 mm². Moment of inertia Ix = 4.081 cm⁴, Iy = 3.325 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)	35 mm	1.38 in
Thickness (t)	1.2 mm	0.05 in
Fillet radius (r)	2.4 mm	0.09 in
Weight	1.3 kg/m	0.90 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	170.53 mm²	0.264 in²
Moment of inertia (Ix)	4.08 cm⁴	0.10 in⁴
Moment of inertia (Iy)	3.33 cm⁴	0.08 in⁴
Elastic section modulus (Sx)	2.04 cm³	0.125 in³
Elastic section modulus (Sy)	1.9 cm³	0.116 in³
Plastic section modulus (Zx)	2.4 cm³	0.147 in³
Plastic section modulus (Zy)	2.2 cm³	0.134 in³
Radius of gyration (rx)	1.55 cm	0.609 in
Radius of gyration (ry)	1.4 cm	0.550 in