RHS 120x100x11.1 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 120x100x11.1 steel profile weighs 32.0 kg/m (21.49 lb/ft), has a depth of 120 mm (4.72 in), flange width 100 mm (3.94 in). Cross-sectional area: 4,073.867 mm². Moment of inertia Ix = 727.459 cm⁴, Iy = 543.723 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)	11.1 mm	0.44 in
Fillet radius (r)	22.2 mm	0.87 in
Weight	32.0 kg/m	21.49 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,073.87 mm²	6.314 in²
Moment of inertia (Ix)	727.46 cm⁴	17.48 in⁴
Moment of inertia (Iy)	543.72 cm⁴	13.06 in⁴
Elastic section modulus (Sx)	121.24 cm³	7.399 in³
Elastic section modulus (Sy)	108.74 cm³	6.636 in³
Plastic section modulus (Zx)	155.59 cm³	9.495 in³
Plastic section modulus (Zy)	136.81 cm³	8.348 in³
Radius of gyration (rx)	4.23 cm	1.664 in
Radius of gyration (ry)	3.65 cm	1.438 in