RHS 180x110x8.2 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 180x110 (México) · Caño estructural 180x110 (Argentina)

The RHS 180x110x8.2 steel profile weighs 33.9 kg/m (22.75 lb/ft), has a depth of 180 mm (7.09 in), flange width 110 mm (4.33 in). Cross-sectional area: 4,313.882 mm². Moment of inertia Ix = 1,795.187 cm⁴, Iy = 829.152 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	180 mm	7.09 in
Width (b)	110 mm	4.33 in
Thickness (t)	8.2 mm	0.32 in
Fillet radius (r)	16.4 mm	0.65 in
Weight	33.9 kg/m	22.75 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,313.88 mm²	6.687 in²
Moment of inertia (Ix)	1,795.19 cm⁴	43.13 in⁴
Moment of inertia (Iy)	829.15 cm⁴	19.92 in⁴
Elastic section modulus (Sx)	199.47 cm³	12.172 in³
Elastic section modulus (Sy)	150.75 cm³	9.200 in³
Plastic section modulus (Zx)	249.38 cm³	15.218 in³
Plastic section modulus (Zy)	176.92 cm³	10.796 in³
Radius of gyration (rx)	6.45 cm	2.540 in
Radius of gyration (ry)	4.38 cm	1.726 in