RHS 70x25x3 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 70x25 cal 11 (México) · Caño estructural 70x25 (Argentina)

The RHS 70x25x3 steel profile weighs 4.0 kg/m (2.69 lb/ft), has a depth of 70 mm (2.76 in), flange width 25 mm (0.98 in). Cross-sectional area: 510.823 mm². Moment of inertia Ix = 27.206 cm⁴, Iy = 5.128 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3 mm ≈ 11 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	70 mm	2.76 in
Width (b)	25 mm	0.98 in
Thickness (t)	3 mm	0.12 in
Fillet radius (r)	6 mm	0.24 in
Weight	4.0 kg/m	2.69 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	510.82 mm²	0.792 in²
Moment of inertia (Ix)	27.21 cm⁴	0.65 in⁴
Moment of inertia (Iy)	5.13 cm⁴	0.12 in⁴
Elastic section modulus (Sx)	7.77 cm³	0.474 in³
Elastic section modulus (Sy)	4.1 cm³	0.250 in³
Plastic section modulus (Zx)	10.37 cm³	0.633 in³
Plastic section modulus (Zy)	4.88 cm³	0.298 in³
Radius of gyration (rx)	2.31 cm	0.909 in
Radius of gyration (ry)	1 cm	0.394 in