RHS 120x100x4.4 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 120x100x4.4 steel profile weighs 14.2 kg/m (9.54 lb/ft), has a depth of 120 mm (4.72 in), flange width 100 mm (3.94 in). Cross-sectional area: 1,808.704 mm². Moment of inertia Ix = 377.524 cm⁴, Iy = 285.03 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.4 mm ≈ 7 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	100 mm	3.94 in
Thickness (t)	4.4 mm	0.17 in
Fillet radius (r)	8.8 mm	0.35 in
Weight	14.2 kg/m	9.54 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,808.7 mm²	2.803 in²
Moment of inertia (Ix)	377.52 cm⁴	9.07 in⁴
Moment of inertia (Iy)	285.03 cm⁴	6.85 in⁴
Elastic section modulus (Sx)	62.92 cm³	3.840 in³
Elastic section modulus (Sy)	57.01 cm³	3.479 in³
Plastic section modulus (Zx)	75.12 cm³	4.584 in³
Plastic section modulus (Zy)	66.32 cm³	4.047 in³
Radius of gyration (rx)	4.57 cm	1.799 in
Radius of gyration (ry)	3.97 cm	1.563 in