RHS 280x160x11.1 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 280x160 (México) · Caño estructural 280x160 (Argentina)

The RHS 280x160x11.1 steel profile weighs 70.3 kg/m (47.26 lb/ft), has a depth of 280 mm (11.02 in), flange width 160 mm (6.30 in). Cross-sectional area: 8,957.867 mm². Moment of inertia Ix = 8,991.098 cm⁴, Iy = 3,743.612 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	280 mm	11.02 in
Width (b)	160 mm	6.30 in
Thickness (t)	11.1 mm	0.44 in
Fillet radius (r)	22.2 mm	0.87 in
Weight	70.3 kg/m	47.26 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,957.87 mm²	13.885 in²
Moment of inertia (Ix)	8,991.1 cm⁴	216.01 in⁴
Moment of inertia (Iy)	3,743.61 cm⁴	89.94 in⁴
Elastic section modulus (Sx)	642.22 cm³	39.191 in³
Elastic section modulus (Sy)	467.95 cm³	28.556 in³
Plastic section modulus (Zx)	802.66 cm³	48.982 in³
Plastic section modulus (Zy)	543.45 cm³	33.163 in³
Radius of gyration (rx)	10.02 cm	3.944 in
Radius of gyration (ry)	6.46 cm	2.545 in