RHS 120x80x2 Hiasa · Weight & Dimensions

Hiasa, 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 15 (México) · Caño estructural 120x80 (Argentina)

The RHS 120x80x2 steel profile weighs 6.1 kg/m (4.08 lb/ft), has a depth of 120 mm (4.72 in), flange width 80 mm (3.15 in). Cross-sectional area: 773.699 mm². Moment of inertia Ix = 159.771 cm⁴, Iy = 86.04 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2 mm ≈ 14 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	80 mm	3.15 in
Thickness (t)	2 mm	0.08 in
Fillet radius (r)	4 mm	0.16 in
Weight	6.1 kg/m	4.08 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	773.7 mm²	1.199 in²
Moment of inertia (Ix)	159.77 cm⁴	3.84 in⁴
Moment of inertia (Iy)	86.04 cm⁴	2.07 in⁴
Elastic section modulus (Sx)	26.63 cm³	1.625 in³
Elastic section modulus (Sy)	21.51 cm³	1.313 in³
Plastic section modulus (Zx)	31.72 cm³	1.936 in³
Plastic section modulus (Zy)	24.09 cm³	1.470 in³
Radius of gyration (rx)	4.54 cm	1.789 in
Radius of gyration (ry)	3.33 cm	1.313 in