RHS 45x15x1 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 45x15 cal 18 (México) · Caño estructural 45x15 (Argentina)

The RHS 45x15x1 steel profile weighs 0.9 kg/m (0.60 lb/ft), has a depth of 45 mm (1.77 in), flange width 15 mm (0.59 in). Cross-sectional area: 113.425 mm². Moment of inertia Ix = 2.649 cm⁴, Iy = 0.465 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	45 mm	1.77 in
Width (b)	15 mm	0.59 in
Thickness (t)	1 mm	0.04 in
Fillet radius (r)	2 mm	0.08 in
Weight	0.9 kg/m	0.60 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	113.42 mm²	0.176 in²
Moment of inertia (Ix)	2.65 cm⁴	0.06 in⁴
Moment of inertia (Iy)	0.46 cm⁴	0.01 in⁴
Elastic section modulus (Sx)	1.18 cm³	0.072 in³
Elastic section modulus (Sy)	0.62 cm³	0.038 in³
Plastic section modulus (Zx)	1.53 cm³	0.093 in³
Plastic section modulus (Zy)	0.7 cm³	0.042 in³
Radius of gyration (rx)	1.53 cm	0.602 in
Radius of gyration (ry)	0.64 cm	0.252 in