RHS 70x30x3.2 Acindar · Weight & Dimensions

Acindar, 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 11 (México) · Caño estructural 70x30 (Argentina)

The RHS 70x30x3.2 steel profile weighs 4.5 kg/m (3.02 lb/ft), has a depth of 70 mm (2.76 in), flange width 30 mm (1.18 in). Cross-sectional area: 572.67 mm². Moment of inertia Ix = 32.038 cm⁴, Iy = 8.239 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3.2 mm ≈ 10 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	70 mm	2.76 in
Width (b)	30 mm	1.18 in
Thickness (t)	3.2 mm	0.13 in
Fillet radius (r)	6.4 mm	0.25 in
Weight	4.5 kg/m	3.02 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	572.67 mm²	0.888 in²
Moment of inertia (Ix)	32.04 cm⁴	0.77 in⁴
Moment of inertia (Iy)	8.24 cm⁴	0.20 in⁴
Elastic section modulus (Sx)	9.15 cm³	0.559 in³
Elastic section modulus (Sy)	5.49 cm³	0.335 in³
Plastic section modulus (Zx)	11.98 cm³	0.731 in³
Plastic section modulus (Zy)	6.51 cm³	0.398 in³
Radius of gyration (rx)	2.37 cm	0.931 in
Radius of gyration (ry)	1.2 cm	0.472 in