RHS 60x40x6.4 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 60x40 cal 3 (México) · Caño estructural 60x40 (Argentina)

The RHS 60x40x6.4 steel profile weighs 7.9 kg/m (5.33 lb/ft), has a depth of 60 mm (2.36 in), flange width 40 mm (1.57 in). Cross-sectional area: 1,010.679 mm². Moment of inertia Ix = 39.457 cm⁴, Iy = 20.397 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.4 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	60 mm	2.36 in
Width (b)	40 mm	1.57 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	7.9 kg/m	5.33 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,010.68 mm²	1.567 in²
Moment of inertia (Ix)	39.46 cm⁴	0.95 in⁴
Moment of inertia (Iy)	20.4 cm⁴	0.49 in⁴
Elastic section modulus (Sx)	13.15 cm³	0.803 in³
Elastic section modulus (Sy)	10.2 cm³	0.622 in³
Plastic section modulus (Zx)	17.81 cm³	1.087 in³
Plastic section modulus (Zy)	13.29 cm³	0.811 in³
Radius of gyration (rx)	1.98 cm	0.778 in
Radius of gyration (ry)	1.42 cm	0.559 in