RHS 80x50x9.5 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 80x50 (México) · Caño estructural 80x50 (Argentina)

The RHS 80x50x9.5 steel profile weighs 14.7 kg/m (9.90 lb/ft), has a depth of 80 mm (3.15 in), flange width 50 mm (1.97 in). Cross-sectional area: 1,876.586 mm². Moment of inertia Ix = 120.948 cm⁴, Iy = 55.857 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	80 mm	3.15 in
Width (b)	50 mm	1.97 in
Thickness (t)	9.5 mm	0.37 in
Fillet radius (r)	19 mm	0.75 in
Weight	14.7 kg/m	9.90 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,876.59 mm²	2.909 in²
Moment of inertia (Ix)	120.95 cm⁴	2.91 in⁴
Moment of inertia (Iy)	55.86 cm⁴	1.34 in⁴
Elastic section modulus (Sx)	30.24 cm³	1.845 in³
Elastic section modulus (Sy)	22.34 cm³	1.363 in³
Plastic section modulus (Zx)	42.28 cm³	2.580 in³
Plastic section modulus (Zy)	29.95 cm³	1.828 in³
Radius of gyration (rx)	2.54 cm	0.999 in
Radius of gyration (ry)	1.73 cm	0.679 in