RHS 45x30x1.2 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 45x30 cal 18 (México) · Caño estructural 45x30 (Argentina)

The RHS 45x30x1.2 steel profile weighs 1.3 kg/m (0.90 lb/ft), has a depth of 45 mm (1.77 in), flange width 30 mm (1.18 in). Cross-sectional area: 170.532 mm². Moment of inertia Ix = 4.816 cm⁴, Iy = 2.58 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.2 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	45 mm	1.77 in
Width (b)	30 mm	1.18 in
Thickness (t)	1.2 mm	0.05 in
Fillet radius (r)	2.4 mm	0.09 in
Weight	1.3 kg/m	0.90 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	170.53 mm²	0.264 in²
Moment of inertia (Ix)	4.82 cm⁴	0.12 in⁴
Moment of inertia (Iy)	2.58 cm⁴	0.06 in⁴
Elastic section modulus (Sx)	2.14 cm³	0.131 in³
Elastic section modulus (Sy)	1.72 cm³	0.105 in³
Plastic section modulus (Zx)	2.58 cm³	0.158 in³
Plastic section modulus (Zy)	1.96 cm³	0.119 in³
Radius of gyration (rx)	1.68 cm	0.662 in
Radius of gyration (ry)	1.23 cm	0.484 in