RHS 120x40x3.2 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 120x40 cal 11 (México) · Caño estructural 120x40 (Argentina)

The RHS 120x40x3.2 steel profile weighs 7.5 kg/m (5.05 lb/ft), has a depth of 120 mm (4.72 in), flange width 40 mm (1.57 in). Cross-sectional area: 956.67 mm². Moment of inertia Ix = 156.218 cm⁴, Iy = 27.1 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	40 mm	1.57 in
Thickness (t)	3.2 mm	0.13 in
Fillet radius (r)	6.4 mm	0.25 in
Weight	7.5 kg/m	5.05 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	956.67 mm²	1.483 in²
Moment of inertia (Ix)	156.22 cm⁴	3.75 in⁴
Moment of inertia (Iy)	27.1 cm⁴	0.65 in⁴
Elastic section modulus (Sx)	26.04 cm³	1.589 in³
Elastic section modulus (Sy)	13.55 cm³	0.827 in³
Plastic section modulus (Zx)	34.03 cm³	2.077 in³
Plastic section modulus (Zy)	15.43 cm³	0.941 in³
Radius of gyration (rx)	4.04 cm	1.591 in
Radius of gyration (ry)	1.68 cm	0.663 in