RHS 55x15x2 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 55x15 cal 15 (México) · Caño estructural 55x15 (Argentina)

The RHS 55x15x2 steel profile weighs 2.0 kg/m (1.34 lb/ft), has a depth of 55 mm (2.17 in), flange width 15 mm (0.59 in). Cross-sectional area: 253.699 mm². Moment of inertia Ix = 7.88 cm⁴, Iy = 0.929 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2 mm ≈ 14 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	55 mm	2.17 in
Width (b)	15 mm	0.59 in
Thickness (t)	2 mm	0.08 in
Fillet radius (r)	4 mm	0.16 in
Weight	2.0 kg/m	1.34 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	253.7 mm²	0.393 in²
Moment of inertia (Ix)	7.88 cm⁴	0.19 in⁴
Moment of inertia (Iy)	0.93 cm⁴	0.02 in⁴
Elastic section modulus (Sx)	2.87 cm³	0.175 in³
Elastic section modulus (Sy)	1.24 cm³	0.076 in³
Plastic section modulus (Zx)	3.91 cm³	0.239 in³
Plastic section modulus (Zy)	1.48 cm³	0.090 in³
Radius of gyration (rx)	1.76 cm	0.694 in
Radius of gyration (ry)	0.61 cm	0.238 in