RHS 160x110x6.4 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 160x110 cal 3 (México) · Caño estructural 160x110 (Argentina)

The RHS 160x110x6.4 steel profile weighs 25.0 kg/m (16.81 lb/ft), has a depth of 160 mm (6.30 in), flange width 110 mm (4.33 in). Cross-sectional area: 3,186.679 mm². Moment of inertia Ix = 1,105.713 cm⁴, Iy = 617.693 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	160 mm	6.30 in
Width (b)	110 mm	4.33 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)	1,105.71 cm⁴	26.56 in⁴
Moment of inertia (Iy)	617.69 cm⁴	14.84 in⁴
Elastic section modulus (Sx)	138.21 cm³	8.434 in³
Elastic section modulus (Sy)	112.31 cm³	6.853 in³
Plastic section modulus (Zx)	169.16 cm³	10.323 in³
Plastic section modulus (Zy)	130.64 cm³	7.972 in³
Radius of gyration (rx)	5.89 cm	2.319 in
Radius of gyration (ry)	4.4 cm	1.733 in