RHS 280x160x8.2 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 280x160 (México) · Caño estructural 280x160 (Argentina)

The RHS 280x160x8.2 steel profile weighs 53.2 kg/m (35.73 lb/ft), has a depth of 280 mm (11.02 in), flange width 160 mm (6.30 in). Cross-sectional area: 6,773.882 mm². Moment of inertia Ix = 7,019.05 cm⁴, Iy = 2,946.143 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)	8.2 mm	0.32 in
Fillet radius (r)	16.4 mm	0.65 in
Weight	53.2 kg/m	35.73 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	6,773.88 mm²	10.500 in²
Moment of inertia (Ix)	7,019.05 cm⁴	168.63 in⁴
Moment of inertia (Iy)	2,946.14 cm⁴	70.78 in⁴
Elastic section modulus (Sx)	501.36 cm³	30.595 in³
Elastic section modulus (Sy)	368.27 cm³	22.473 in³
Plastic section modulus (Zx)	617.51 cm³	37.683 in³
Plastic section modulus (Zy)	419.49 cm³	25.599 in³
Radius of gyration (rx)	10.18 cm	4.008 in
Radius of gyration (ry)	6.59 cm	2.596 in