RHS 100x50x7.1 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 100x50 (México) · Caño estructural 100x50 (Argentina)

The RHS 100x50x7.1 steel profile weighs 14.1 kg/m (9.49 lb/ft), has a depth of 100 mm (3.94 in), flange width 50 mm (1.97 in). Cross-sectional area: 1,798.543 mm². Moment of inertia Ix = 197.545 cm⁴, Iy = 64.15 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)	7.1 mm	0.28 in
Fillet radius (r)	14.2 mm	0.56 in
Weight	14.1 kg/m	9.49 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,798.54 mm²	2.788 in²
Moment of inertia (Ix)	197.55 cm⁴	4.75 in⁴
Moment of inertia (Iy)	64.15 cm⁴	1.54 in⁴
Elastic section modulus (Sx)	39.51 cm³	2.411 in³
Elastic section modulus (Sy)	25.66 cm³	1.566 in³
Plastic section modulus (Zx)	52.8 cm³	3.222 in³
Plastic section modulus (Zy)	31.94 cm³	1.949 in³
Radius of gyration (rx)	3.31 cm	1.305 in
Radius of gyration (ry)	1.89 cm	0.744 in