RHS 100x50x8.2 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 100x50 (México) · Caño estructural 100x50 (Argentina)

The RHS 100x50x8.2 steel profile weighs 15.8 kg/m (10.64 lb/ft), has a depth of 100 mm (3.94 in), flange width 50 mm (1.97 in). Cross-sectional area: 2,017.882 mm². Moment of inertia Ix = 212.513 cm⁴, Iy = 68.318 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	50 mm	1.97 in
Thickness (t)	8.2 mm	0.32 in
Fillet radius (r)	16.4 mm	0.65 in
Weight	15.8 kg/m	10.64 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,017.88 mm²	3.128 in²
Moment of inertia (Ix)	212.51 cm⁴	5.11 in⁴
Moment of inertia (Iy)	68.32 cm⁴	1.64 in⁴
Elastic section modulus (Sx)	42.5 cm³	2.594 in³
Elastic section modulus (Sy)	27.33 cm³	1.668 in³
Plastic section modulus (Zx)	57.9 cm³	3.533 in³
Plastic section modulus (Zy)	34.84 cm³	2.126 in³
Radius of gyration (rx)	3.25 cm	1.278 in
Radius of gyration (ry)	1.84 cm	0.724 in