SHS 90x90x4.4 Açotubo · Weight & Dimensions

Açotubo, 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 90x90 (México) · Caño estructural 90x90 (Argentina)

The SHS 90x90x4.4 steel profile weighs 11.4 kg/m (7.69 lb/ft), has a depth of 90 mm (3.54 in), flange width 90 mm (3.54 in). Cross-sectional area: 1,456.704 mm². Moment of inertia Ix = 174.752 cm⁴, Iy = 174.752 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.4 mm ≈ 7 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	90 mm	3.54 in
Width (b)	90 mm	3.54 in
Thickness (t)	4.4 mm	0.17 in
Fillet radius (r)	8.8 mm	0.35 in
Weight	11.4 kg/m	7.69 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,456.7 mm²	2.258 in²
Moment of inertia (Ix)	174.75 cm⁴	4.20 in⁴
Moment of inertia (Iy)	174.75 cm⁴	4.20 in⁴
Elastic section modulus (Sx)	38.83 cm³	2.370 in³
Elastic section modulus (Sy)	38.83 cm³	2.370 in³
Plastic section modulus (Zx)	46.2 cm³	2.819 in³
Plastic section modulus (Zy)	46.2 cm³	2.819 in³
Radius of gyration (rx)	3.46 cm	1.364 in
Radius of gyration (ry)	3.46 cm	1.364 in