RHS 45x30x2.5 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 45x30 cal 13 (México) · Caño estructural 45x30 (Argentina)

The RHS 45x30x2.5 steel profile weighs 2.6 kg/m (1.76 lb/ft), has a depth of 45 mm (1.77 in), flange width 30 mm (1.18 in). Cross-sectional area: 333.905 mm². Moment of inertia Ix = 8.668 cm⁴, Iy = 4.578 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.5 mm ≈ 12 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	45 mm	1.77 in
Width (b)	30 mm	1.18 in
Thickness (t)	2.5 mm	0.10 in
Fillet radius (r)	5 mm	0.20 in
Weight	2.6 kg/m	1.76 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	333.9 mm²	0.518 in²
Moment of inertia (Ix)	8.67 cm⁴	0.21 in⁴
Moment of inertia (Iy)	4.58 cm⁴	0.11 in⁴
Elastic section modulus (Sx)	3.85 cm³	0.235 in³
Elastic section modulus (Sy)	3.05 cm³	0.186 in³
Plastic section modulus (Zx)	4.83 cm³	0.295 in³
Plastic section modulus (Zy)	3.64 cm³	0.222 in³
Radius of gyration (rx)	1.61 cm	0.634 in
Radius of gyration (ry)	1.17 cm	0.461 in