RHS 80x50x1.5 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 80x50 cal 16 (México) · Caño estructural 80x50 (Argentina)

The RHS 80x50x1.5 steel profile weighs 3.0 kg/m (1.98 lb/ft), has a depth of 80 mm (3.15 in), flange width 50 mm (1.97 in). Cross-sectional area: 375.206 mm². Moment of inertia Ix = 33.611 cm⁴, Iy = 16.36 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.5 mm ≈ 16 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	80 mm	3.15 in
Width (b)	50 mm	1.97 in
Thickness (t)	1.5 mm	0.06 in
Fillet radius (r)	3 mm	0.12 in
Weight	3.0 kg/m	1.98 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	375.21 mm²	0.582 in²
Moment of inertia (Ix)	33.61 cm⁴	0.81 in⁴
Moment of inertia (Iy)	16.36 cm⁴	0.39 in⁴
Elastic section modulus (Sx)	8.4 cm³	0.513 in³
Elastic section modulus (Sy)	6.54 cm³	0.399 in³
Plastic section modulus (Zx)	10.1 cm³	0.617 in³
Plastic section modulus (Zy)	7.33 cm³	0.448 in³
Radius of gyration (rx)	2.99 cm	1.178 in
Radius of gyration (ry)	2.09 cm	0.822 in