RHS 45x35x2.5 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 45x35 cal 13 (México) · Caño estructural 45x35 (Argentina)

The RHS 45x35x2.5 steel profile weighs 2.8 kg/m (1.90 lb/ft), has a depth of 45 mm (1.77 in), flange width 35 mm (1.38 in). Cross-sectional area: 358.905 mm². Moment of inertia Ix = 9.798 cm⁴, Iy = 6.612 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)	35 mm	1.38 in
Thickness (t)	2.5 mm	0.10 in
Fillet radius (r)	5 mm	0.20 in
Weight	2.8 kg/m	1.90 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	358.9 mm²	0.556 in²
Moment of inertia (Ix)	9.8 cm⁴	0.24 in⁴
Moment of inertia (Iy)	6.61 cm⁴	0.16 in⁴
Elastic section modulus (Sx)	4.35 cm³	0.266 in³
Elastic section modulus (Sy)	3.78 cm³	0.231 in³
Plastic section modulus (Zx)	5.36 cm³	0.327 in³
Plastic section modulus (Zy)	4.51 cm³	0.275 in³
Radius of gyration (rx)	1.65 cm	0.650 in
Radius of gyration (ry)	1.36 cm	0.534 in