RHS 160x80x3 · Weight & Dimensions

BR — 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 160x80 cal 11 (México) · Caño estructural 160x80 (Argentina)

The RHS 160x80x3 steel profile weighs 10.7 kg/m (7.19 lb/ft), has a depth of 160 mm (6.30 in), flange width 80 mm (3.15 in). Cross-sectional area: 1,404 mm². Moment of inertia Ix = 478.44 cm⁴, Iy = 162.63 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3 mm ≈ 11 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	160 mm	6.30 in
Width (b)	80 mm	3.15 in
Thickness (t)	3 mm	0.12 in
Fillet radius (r)	6 mm	0.24 in
Weight	10.7 kg/m	7.19 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,404 mm²	2.176 in²
Moment of inertia (Ix)	478.44 cm⁴	11.49 in⁴
Moment of inertia (Iy)	162.63 cm⁴	3.91 in⁴
Elastic section modulus (Sx)	59.8 cm³	3.649 in³
Elastic section modulus (Sy)	40.66 cm³	2.481 in³
Plastic section modulus (Zx)	73.25 cm³	4.470 in³
Plastic section modulus (Zy)	45.17 cm³	2.756 in³
Radius of gyration (rx)	5.84 cm	2.299 in
Radius of gyration (ry)	3.4 cm	1.339 in