RHS 35x20x1.2 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 35x20 cal 18 (México) · Caño estructural 35x20 (Argentina)

The RHS 35x20x1.2 steel profile weighs 1.0 kg/m (0.65 lb/ft), has a depth of 35 mm (1.38 in), flange width 20 mm (0.79 in). Cross-sectional area: 122.532 mm². Moment of inertia Ix = 1.954 cm⁴, Iy = 0.817 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	35 mm	1.38 in
Width (b)	20 mm	0.79 in
Thickness (t)	1.2 mm	0.05 in
Fillet radius (r)	2.4 mm	0.09 in
Weight	1.0 kg/m	0.65 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	122.53 mm²	0.190 in²
Moment of inertia (Ix)	1.95 cm⁴	0.05 in⁴
Moment of inertia (Iy)	0.82 cm⁴	0.02 in⁴
Elastic section modulus (Sx)	1.12 cm³	0.068 in³
Elastic section modulus (Sy)	0.82 cm³	0.050 in³
Plastic section modulus (Zx)	1.38 cm³	0.085 in³
Plastic section modulus (Zy)	0.94 cm³	0.057 in³
Radius of gyration (rx)	1.26 cm	0.497 in
Radius of gyration (ry)	0.82 cm	0.321 in