RHS 30x25x1 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 30x25 cal 18 (México) · Caño estructural 30x25 (Argentina)

The RHS 30x25x1 steel profile weighs 0.8 kg/m (0.54 lb/ft), has a depth of 30 mm (1.18 in), flange width 25 mm (0.98 in). Cross-sectional area: 103.425 mm². Moment of inertia Ix = 1.361 cm⁴, Iy = 1.028 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	30 mm	1.18 in
Width (b)	25 mm	0.98 in
Thickness (t)	1 mm	0.04 in
Fillet radius (r)	2 mm	0.08 in
Weight	0.8 kg/m	0.54 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	103.42 mm²	0.160 in²
Moment of inertia (Ix)	1.36 cm⁴	0.03 in⁴
Moment of inertia (Iy)	1.03 cm⁴	0.02 in⁴
Elastic section modulus (Sx)	0.91 cm³	0.055 in³
Elastic section modulus (Sy)	0.82 cm³	0.050 in³
Plastic section modulus (Zx)	1.08 cm³	0.066 in³
Plastic section modulus (Zy)	0.95 cm³	0.058 in³
Radius of gyration (rx)	1.15 cm	0.452 in
Radius of gyration (ry)	1 cm	0.393 in