RHS 150x80x6.4 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 150x80 cal 3 (México) · Caño estructural 150x80 (Argentina)

The RHS 150x80x6.4 steel profile weighs 21.0 kg/m (14.11 lb/ft), has a depth of 150 mm (5.91 in), flange width 80 mm (3.15 in). Cross-sectional area: 2,674.679 mm². Moment of inertia Ix = 746.321 cm⁴, Iy = 277.201 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	150 mm	5.91 in
Width (b)	80 mm	3.15 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	21.0 kg/m	14.11 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,674.68 mm²	4.146 in²
Moment of inertia (Ix)	746.32 cm⁴	17.93 in⁴
Moment of inertia (Iy)	277.2 cm⁴	6.66 in⁴
Elastic section modulus (Sx)	99.51 cm³	6.072 in³
Elastic section modulus (Sy)	69.3 cm³	4.229 in³
Plastic section modulus (Zx)	125.98 cm³	7.688 in³
Plastic section modulus (Zy)	81.01 cm³	4.944 in³
Radius of gyration (rx)	5.28 cm	2.080 in
Radius of gyration (ry)	3.22 cm	1.267 in