RHS 240x140x6.4 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 240x140 cal 3 (México) · Caño estructural 240x140 (Argentina)

The RHS 240x140x6.4 steel profile weighs 36.1 kg/m (24.24 lb/ft), has a depth of 240 mm (9.45 in), flange width 140 mm (5.51 in). Cross-sectional area: 4,594.679 mm². Moment of inertia Ix = 3,547.466 cm⁴, Iy = 1,541.491 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	240 mm	9.45 in
Width (b)	140 mm	5.51 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	36.1 kg/m	24.24 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,594.68 mm²	7.122 in²
Moment of inertia (Ix)	3,547.47 cm⁴	85.23 in⁴
Moment of inertia (Iy)	1,541.49 cm⁴	37.03 in⁴
Elastic section modulus (Sx)	295.62 cm³	18.040 in³
Elastic section modulus (Sy)	220.21 cm³	13.438 in³
Plastic section modulus (Zx)	361.96 cm³	22.088 in³
Plastic section modulus (Zy)	249.73 cm³	15.239 in³
Radius of gyration (rx)	8.79 cm	3.459 in
Radius of gyration (ry)	5.79 cm	2.280 in