RHS 70x30x1.5 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 16 (México) · Caño estructural 70x30 (Argentina)

The RHS 70x30x1.5 steel profile weighs 2.2 kg/m (1.51 lb/ft), has a depth of 70 mm (2.76 in), flange width 30 mm (1.18 in). Cross-sectional area: 285.206 mm². Moment of inertia Ix = 17.38 cm⁴, Iy = 4.635 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.5 mm ≈ 16 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	70 mm	2.76 in
Width (b)	30 mm	1.18 in
Thickness (t)	1.5 mm	0.06 in
Fillet radius (r)	3 mm	0.12 in
Weight	2.2 kg/m	1.51 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	285.21 mm²	0.442 in²
Moment of inertia (Ix)	17.38 cm⁴	0.42 in⁴
Moment of inertia (Iy)	4.63 cm⁴	0.11 in⁴
Elastic section modulus (Sx)	4.97 cm³	0.303 in³
Elastic section modulus (Sy)	3.09 cm³	0.189 in³
Plastic section modulus (Zx)	6.25 cm³	0.381 in³
Plastic section modulus (Zy)	3.45 cm³	0.211 in³
Radius of gyration (rx)	2.47 cm	0.972 in
Radius of gyration (ry)	1.27 cm	0.502 in