RHS 180x130x8.2 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 180x130 (México) · Caño estructural 180x130 (Argentina)

The RHS 180x130x8.2 steel profile weighs 36.4 kg/m (24.49 lb/ft), has a depth of 180 mm (7.09 in), flange width 130 mm (5.12 in). Cross-sectional area: 4,641.882 mm². Moment of inertia Ix = 2,037.395 cm⁴, Iy = 1,227.223 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	180 mm	7.09 in
Width (b)	130 mm	5.12 in
Thickness (t)	8.2 mm	0.32 in
Fillet radius (r)	16.4 mm	0.65 in
Weight	36.4 kg/m	24.49 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,641.88 mm²	7.195 in²
Moment of inertia (Ix)	2,037.4 cm⁴	48.95 in⁴
Moment of inertia (Iy)	1,227.22 cm⁴	29.48 in⁴
Elastic section modulus (Sx)	226.38 cm³	13.814 in³
Elastic section modulus (Sy)	188.8 cm³	11.522 in³
Plastic section modulus (Zx)	277.56 cm³	16.938 in³
Plastic section modulus (Zy)	221.7 cm³	13.529 in³
Radius of gyration (rx)	6.63 cm	2.608 in
Radius of gyration (ry)	5.14 cm	2.024 in