RHS 45x25x1.5 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 45x25 cal 16 (México) · Caño estructural 45x25 (Argentina)

The RHS 45x25x1.5 steel profile weighs 1.5 kg/m (1.03 lb/ft), has a depth of 45 mm (1.77 in), flange width 25 mm (0.98 in). Cross-sectional area: 195.206 mm². Moment of inertia Ix = 5.116 cm⁴, Iy = 2.046 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	45 mm	1.77 in
Width (b)	25 mm	0.98 in
Thickness (t)	1.5 mm	0.06 in
Fillet radius (r)	3 mm	0.12 in
Weight	1.5 kg/m	1.03 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	195.21 mm²	0.303 in²
Moment of inertia (Ix)	5.12 cm⁴	0.12 in⁴
Moment of inertia (Iy)	2.05 cm⁴	0.05 in⁴
Elastic section modulus (Sx)	2.27 cm³	0.139 in³
Elastic section modulus (Sy)	1.64 cm³	0.100 in³
Plastic section modulus (Zx)	2.83 cm³	0.172 in³
Plastic section modulus (Zy)	1.88 cm³	0.115 in³
Radius of gyration (rx)	1.62 cm	0.637 in
Radius of gyration (ry)	1.02 cm	0.403 in