RHS 25x20x1.2 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 25x20 cal 18 (México) · Caño estructural 25x20 (Argentina)

The RHS 25x20x1.2 steel profile weighs 0.8 kg/m (0.52 lb/ft), has a depth of 25 mm (0.98 in), flange width 20 mm (0.79 in). Cross-sectional area: 98.532 mm². Moment of inertia Ix = 0.855 cm⁴, Iy = 0.605 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	25 mm	0.98 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	0.8 kg/m	0.52 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	98.53 mm²	0.153 in²
Moment of inertia (Ix)	0.86 cm⁴	0.02 in⁴
Moment of inertia (Iy)	0.6 cm⁴	0.01 in⁴
Elastic section modulus (Sx)	0.68 cm³	0.042 in³
Elastic section modulus (Sy)	0.6 cm³	0.037 in³
Plastic section modulus (Zx)	0.83 cm³	0.051 in³
Plastic section modulus (Zy)	0.71 cm³	0.044 in³
Radius of gyration (rx)	0.93 cm	0.367 in
Radius of gyration (ry)	0.78 cm	0.308 in