RHS 20x15x1.5 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 20x15 cal 16 (México) · Caño estructural 20x15 (Argentina)

The RHS 20x15x1.5 steel profile weighs 0.7 kg/m (0.48 lb/ft), has a depth of 20 mm (0.79 in), flange width 15 mm (0.59 in). Cross-sectional area: 90.206 mm². Moment of inertia Ix = 0.454 cm⁴, Iy = 0.288 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.5 mm ≈ 16 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	20 mm	0.79 in
Width (b)	15 mm	0.59 in
Thickness (t)	1.5 mm	0.06 in
Fillet radius (r)	3 mm	0.12 in
Weight	0.7 kg/m	0.48 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	90.21 mm²	0.140 in²
Moment of inertia (Ix)	0.45 cm⁴	0.01 in⁴
Moment of inertia (Iy)	0.29 cm⁴	0.01 in⁴
Elastic section modulus (Sx)	0.45 cm³	0.028 in³
Elastic section modulus (Sy)	0.38 cm³	0.023 in³
Plastic section modulus (Zx)	0.58 cm³	0.035 in³
Plastic section modulus (Zy)	0.47 cm³	0.029 in³
Radius of gyration (rx)	0.71 cm	0.279 in
Radius of gyration (ry)	0.56 cm	0.222 in