RHS 170x130x6.4 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 170x130 cal 3 (México) · Caño estructural 170x130 (Argentina)

The RHS 170x130x6.4 steel profile weighs 28.0 kg/m (18.84 lb/ft), has a depth of 170 mm (6.69 in), flange width 130 mm (5.12 in). Cross-sectional area: 3,570.679 mm². Moment of inertia Ix = 1,454.329 cm⁴, Iy = 960.633 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	170 mm	6.69 in
Width (b)	130 mm	5.12 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	28.0 kg/m	18.84 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,570.68 mm²	5.535 in²
Moment of inertia (Ix)	1,454.33 cm⁴	34.94 in⁴
Moment of inertia (Iy)	960.63 cm⁴	23.08 in⁴
Elastic section modulus (Sx)	171.1 cm³	10.441 in³
Elastic section modulus (Sy)	147.79 cm³	9.019 in³
Plastic section modulus (Zx)	206.35 cm³	12.593 in³
Plastic section modulus (Zy)	171.7 cm³	10.478 in³
Radius of gyration (rx)	6.38 cm	2.513 in
Radius of gyration (ry)	5.19 cm	2.042 in