SHS 55x55x2.5 Hiasa · Weight & Dimensions

Hiasa, cold-formed sections · Square Hollow Section

Square Hollow Sections (SHS) are tubular profiles with equal sides, ideal for columns and compression members due to their uniform buckling resistance in all directions.

Also known as: PTR 55x55 cal 13 (México) · Caño estructural 55x55 (Argentina)

The SHS 55x55x2.5 steel profile weighs 4.0 kg/m (2.68 lb/ft), has a depth of 55 mm (2.17 in), flange width 55 mm (2.17 in). Cross-sectional area: 508.905 mm². Moment of inertia Ix = 22.997 cm⁴, Iy = 22.997 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.5 mm ≈ 12 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	55 mm	2.17 in
Width (b)	55 mm	2.17 in
Thickness (t)	2.5 mm	0.10 in
Fillet radius (r)	5 mm	0.20 in
Weight	4.0 kg/m	2.68 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	508.9 mm²	0.789 in²
Moment of inertia (Ix)	23 cm⁴	0.55 in⁴
Moment of inertia (Iy)	23 cm⁴	0.55 in⁴
Elastic section modulus (Sx)	8.36 cm³	0.510 in³
Elastic section modulus (Sy)	8.36 cm³	0.510 in³
Plastic section modulus (Zx)	9.91 cm³	0.605 in³
Plastic section modulus (Zy)	9.91 cm³	0.605 in³
Radius of gyration (rx)	2.13 cm	0.837 in
Radius of gyration (ry)	2.13 cm	0.837 in