RHS 70x50x1.1 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 70x50 cal 18 (México) · Caño estructural 70x50 (Argentina)

The RHS 70x50x1.1 steel profile weighs 2.0 kg/m (1.35 lb/ft), has a depth of 70 mm (2.76 in), flange width 50 mm (1.97 in). Cross-sectional area: 256.044 mm². Moment of inertia Ix = 18.393 cm⁴, Iy = 11.018 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.1 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	70 mm	2.76 in
Width (b)	50 mm	1.97 in
Thickness (t)	1.1 mm	0.04 in
Fillet radius (r)	2.2 mm	0.09 in
Weight	2.0 kg/m	1.35 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	256.04 mm²	0.397 in²
Moment of inertia (Ix)	18.39 cm⁴	0.44 in⁴
Moment of inertia (Iy)	11.02 cm⁴	0.26 in⁴
Elastic section modulus (Sx)	5.26 cm³	0.321 in³
Elastic section modulus (Sy)	4.41 cm³	0.269 in³
Plastic section modulus (Zx)	6.21 cm³	0.379 in³
Plastic section modulus (Zy)	4.94 cm³	0.302 in³
Radius of gyration (rx)	2.68 cm	1.055 in
Radius of gyration (ry)	2.07 cm	0.817 in