RHS 120x40x1.6 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 16 (México) · Caño estructural 120x40 (Argentina)

The RHS 120x40x1.6 steel profile weighs 3.9 kg/m (2.61 lb/ft), has a depth of 120 mm (4.72 in), flange width 40 mm (1.57 in). Cross-sectional area: 495.167 mm². Moment of inertia Ix = 85.004 cm⁴, Iy = 15.237 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.6 mm ≈ 16 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	40 mm	1.57 in
Thickness (t)	1.6 mm	0.06 in
Fillet radius (r)	3.2 mm	0.13 in
Weight	3.9 kg/m	2.61 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	495.17 mm²	0.768 in²
Moment of inertia (Ix)	85 cm⁴	2.04 in⁴
Moment of inertia (Iy)	15.24 cm⁴	0.37 in⁴
Elastic section modulus (Sx)	14.17 cm³	0.865 in³
Elastic section modulus (Sy)	7.62 cm³	0.465 in³
Plastic section modulus (Zx)	18.1 cm³	1.104 in³
Plastic section modulus (Zy)	8.33 cm³	0.508 in³
Radius of gyration (rx)	4.14 cm	1.631 in
Radius of gyration (ry)	1.75 cm	0.691 in