RHS 70x60x6.4 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 70x60 cal 3 (México) · Caño estructural 70x60 (Argentina)

The RHS 70x60x6.4 steel profile weighs 10.9 kg/m (7.36 lb/ft), has a depth of 70 mm (2.76 in), flange width 60 mm (2.36 in). Cross-sectional area: 1,394.679 mm². Moment of inertia Ix = 85.879 cm⁴, Iy = 67.169 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	70 mm	2.76 in
Width (b)	60 mm	2.36 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	10.9 kg/m	7.36 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,394.68 mm²	2.162 in²
Moment of inertia (Ix)	85.88 cm⁴	2.06 in⁴
Moment of inertia (Iy)	67.17 cm⁴	1.61 in⁴
Elastic section modulus (Sx)	24.54 cm³	1.497 in³
Elastic section modulus (Sy)	22.39 cm³	1.366 in³
Plastic section modulus (Zx)	31.33 cm³	1.912 in³
Plastic section modulus (Zy)	28.1 cm³	1.715 in³
Radius of gyration (rx)	2.48 cm	0.977 in
Radius of gyration (ry)	2.19 cm	0.864 in