RHS 120x100x10.3 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 120x100x10.3 steel profile weighs 30.1 kg/m (20.23 lb/ft), has a depth of 120 mm (4.72 in), flange width 100 mm (3.94 in). Cross-sectional area: 3,834.435 mm². Moment of inertia Ix = 698.327 cm⁴, Iy = 522.515 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)	10.3 mm	0.41 in
Fillet radius (r)	20.6 mm	0.81 in
Weight	30.1 kg/m	20.23 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,834.43 mm²	5.943 in²
Moment of inertia (Ix)	698.33 cm⁴	16.78 in⁴
Moment of inertia (Iy)	522.51 cm⁴	12.55 in⁴
Elastic section modulus (Sx)	116.39 cm³	7.102 in³
Elastic section modulus (Sy)	104.5 cm³	6.377 in³
Plastic section modulus (Zx)	148.01 cm³	9.032 in³
Plastic section modulus (Zy)	130.21 cm³	7.946 in³
Radius of gyration (rx)	4.27 cm	1.680 in
Radius of gyration (ry)	3.69 cm	1.453 in