RHS 120x80x6.35 Acindar · Weight & Dimensions

Acindar, 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 120x80 cal 3 (México) · Caño estructural 120x80 (Argentina)

The RHS 120x80x6.35 steel profile weighs 17.9 kg/m (12.00 lb/ft), has a depth of 120 mm (4.72 in), flange width 80 mm (3.15 in). Cross-sectional area: 2,275.416 mm². Moment of inertia Ix = 423.483 cm⁴, Iy = 223.926 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.35 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	80 mm	3.15 in
Thickness (t)	6.3 mm	0.25 in
Fillet radius (r)	12.7 mm	0.50 in
Weight	17.9 kg/m	12.00 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,275.42 mm²	3.527 in²
Moment of inertia (Ix)	423.48 cm⁴	10.17 in⁴
Moment of inertia (Iy)	223.93 cm⁴	5.38 in⁴
Elastic section modulus (Sx)	70.58 cm³	4.307 in³
Elastic section modulus (Sy)	55.98 cm³	3.416 in³
Plastic section modulus (Zx)	88.22 cm³	5.383 in³
Plastic section modulus (Zy)	66.49 cm³	4.058 in³
Radius of gyration (rx)	4.31 cm	1.698 in
Radius of gyration (ry)	3.14 cm	1.235 in