RHS 120x100x8.2 Açotubo · Weight & Dimensions

Açotubo, 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 120x100 (México) · Caño estructural 120x100 (Argentina)

The RHS 120x100x8.2 steel profile weighs 24.9 kg/m (16.70 lb/ft), has a depth of 120 mm (4.72 in), flange width 100 mm (3.94 in). Cross-sectional area: 3,165.882 mm². Moment of inertia Ix = 606.283 cm⁴, Iy = 455.018 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	100 mm	3.94 in
Thickness (t)	8.2 mm	0.32 in
Fillet radius (r)	16.4 mm	0.65 in
Weight	24.9 kg/m	16.70 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,165.88 mm²	4.907 in²
Moment of inertia (Ix)	606.28 cm⁴	14.57 in⁴
Moment of inertia (Iy)	455.02 cm⁴	10.93 in⁴
Elastic section modulus (Sx)	101.05 cm³	6.166 in³
Elastic section modulus (Sy)	91 cm³	5.553 in³
Plastic section modulus (Zx)	125.56 cm³	7.662 in³
Plastic section modulus (Zy)	110.59 cm³	6.749 in³
Radius of gyration (rx)	4.38 cm	1.723 in
Radius of gyration (ry)	3.79 cm	1.493 in