RHS 170x100x6.4 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 170x100 cal 3 (México) · Caño estructural 170x100 (Argentina)

The RHS 170x100x6.4 steel profile weighs 25.0 kg/m (16.81 lb/ft), has a depth of 170 mm (6.69 in), flange width 100 mm (3.94 in). Cross-sectional area: 3,186.679 mm². Moment of inertia Ix = 1,197.254 cm⁴, Iy = 522.987 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)	100 mm	3.94 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	25.0 kg/m	16.81 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,186.68 mm²	4.939 in²
Moment of inertia (Ix)	1,197.25 cm⁴	28.76 in⁴
Moment of inertia (Iy)	522.99 cm⁴	12.56 in⁴
Elastic section modulus (Sx)	140.85 cm³	8.595 in³
Elastic section modulus (Sy)	104.6 cm³	6.383 in³
Plastic section modulus (Zx)	174.94 cm³	10.676 in³
Plastic section modulus (Zy)	121.02 cm³	7.385 in³
Radius of gyration (rx)	6.13 cm	2.413 in
Radius of gyration (ry)	4.05 cm	1.595 in