RHS 100x50x4.4 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 100x50 (México) · Caño estructural 100x50 (Argentina)

The RHS 100x50x4.4 steel profile weighs 9.4 kg/m (6.29 lb/ft), has a depth of 100 mm (3.94 in), flange width 50 mm (1.97 in). Cross-sectional area: 1,192.704 mm². Moment of inertia Ix = 144.185 cm⁴, Iy = 48.112 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	50 mm	1.97 in
Thickness (t)	4.4 mm	0.17 in
Fillet radius (r)	8.8 mm	0.35 in
Weight	9.4 kg/m	6.29 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,192.7 mm²	1.849 in²
Moment of inertia (Ix)	144.18 cm⁴	3.46 in⁴
Moment of inertia (Iy)	48.11 cm⁴	1.16 in⁴
Elastic section modulus (Sx)	28.84 cm³	1.760 in³
Elastic section modulus (Sy)	19.24 cm³	1.174 in³
Plastic section modulus (Zx)	36.88 cm³	2.250 in³
Plastic section modulus (Zy)	22.59 cm³	1.379 in³
Radius of gyration (rx)	3.48 cm	1.369 in
Radius of gyration (ry)	2.01 cm	0.791 in