RHS 70x50x2.5 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 70x50 cal 13 (México) · Caño estructural 70x50 (Argentina)

The RHS 70x50x2.5 steel profile weighs 4.4 kg/m (2.95 lb/ft), has a depth of 70 mm (2.76 in), flange width 50 mm (1.97 in). Cross-sectional area: 558.905 mm². Moment of inertia Ix = 38.014 cm⁴, Iy = 22.59 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)	50 mm	1.97 in
Thickness (t)	2.5 mm	0.10 in
Fillet radius (r)	5 mm	0.20 in
Weight	4.4 kg/m	2.95 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	558.9 mm²	0.866 in²
Moment of inertia (Ix)	38.01 cm⁴	0.91 in⁴
Moment of inertia (Iy)	22.59 cm⁴	0.54 in⁴
Elastic section modulus (Sx)	10.86 cm³	0.663 in³
Elastic section modulus (Sy)	9.04 cm³	0.551 in³
Plastic section modulus (Zx)	13.16 cm³	0.803 in³
Plastic section modulus (Zy)	10.45 cm³	0.638 in³
Radius of gyration (rx)	2.61 cm	1.027 in
Radius of gyration (ry)	2.01 cm	0.792 in