RHS 80x30x1.5 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 80x30 cal 16 (México) · Caño estructural 80x30 (Argentina)

The RHS 80x30x1.5 steel profile weighs 2.5 kg/m (1.66 lb/ft), has a depth of 80 mm (3.15 in), flange width 30 mm (1.18 in). Cross-sectional area: 315.206 mm². Moment of inertia Ix = 24.366 cm⁴, Iy = 5.245 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)	30 mm	1.18 in
Thickness (t)	1.5 mm	0.06 in
Fillet radius (r)	3 mm	0.12 in
Weight	2.5 kg/m	1.66 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	315.21 mm²	0.489 in²
Moment of inertia (Ix)	24.37 cm⁴	0.59 in⁴
Moment of inertia (Iy)	5.24 cm⁴	0.13 in⁴
Elastic section modulus (Sx)	6.09 cm³	0.372 in³
Elastic section modulus (Sy)	3.5 cm³	0.213 in³
Plastic section modulus (Zx)	7.75 cm³	0.473 in³
Plastic section modulus (Zy)	3.88 cm³	0.237 in³
Radius of gyration (rx)	2.78 cm	1.095 in
Radius of gyration (ry)	1.29 cm	0.508 in