RHS 120x80x3.2 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 120x80 cal 11 (México) · Caño estructural 120x80 (Argentina)

The RHS 120x80x3.2 steel profile weighs 9.5 kg/m (6.40 lb/ft), has a depth of 120 mm (4.72 in), flange width 80 mm (3.15 in). Cross-sectional area: 1,212.67 mm². Moment of inertia Ix = 243.55 cm⁴, Iy = 130.484 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)	80 mm	3.15 in
Thickness (t)	3.2 mm	0.13 in
Fillet radius (r)	6.4 mm	0.25 in
Weight	9.5 kg/m	6.40 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,212.67 mm²	1.880 in²
Moment of inertia (Ix)	243.55 cm⁴	5.85 in⁴
Moment of inertia (Iy)	130.48 cm⁴	3.13 in⁴
Elastic section modulus (Sx)	40.59 cm³	2.477 in³
Elastic section modulus (Sy)	32.62 cm³	1.991 in³
Plastic section modulus (Zx)	48.98 cm³	2.989 in³
Plastic section modulus (Zy)	37.12 cm³	2.265 in³
Radius of gyration (rx)	4.48 cm	1.764 in
Radius of gyration (ry)	3.28 cm	1.291 in