RHS 70x30x2.5 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 70x30 cal 13 (México) · Caño estructural 70x30 (Argentina)

The RHS 70x30x2.5 steel profile weighs 3.6 kg/m (2.42 lb/ft), has a depth of 70 mm (2.76 in), flange width 30 mm (1.18 in). Cross-sectional area: 458.905 mm². Moment of inertia Ix = 26.618 cm⁴, Iy = 6.948 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	70 mm	2.76 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	3.6 kg/m	2.42 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	458.9 mm²	0.711 in²
Moment of inertia (Ix)	26.62 cm⁴	0.64 in⁴
Moment of inertia (Iy)	6.95 cm⁴	0.17 in⁴
Elastic section modulus (Sx)	7.61 cm³	0.464 in³
Elastic section modulus (Sy)	4.63 cm³	0.283 in³
Plastic section modulus (Zx)	9.79 cm³	0.597 in³
Plastic section modulus (Zy)	5.36 cm³	0.327 in³
Radius of gyration (rx)	2.41 cm	0.948 in
Radius of gyration (ry)	1.23 cm	0.484 in