SHS 90x90x6.4 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 cal 3 (México) · Caño estructural 90x90 (Argentina)

The SHS 90x90x6.4 steel profile weighs 16.0 kg/m (10.73 lb/ft), has a depth of 90 mm (3.54 in), flange width 90 mm (3.54 in). Cross-sectional area: 2,034.679 mm². Moment of inertia Ix = 230.559 cm⁴, Iy = 230.559 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.4 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	90 mm	3.54 in
Width (b)	90 mm	3.54 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	16.0 kg/m	10.73 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,034.68 mm²	3.154 in²
Moment of inertia (Ix)	230.56 cm⁴	5.54 in⁴
Moment of inertia (Iy)	230.56 cm⁴	5.54 in⁴
Elastic section modulus (Sx)	51.24 cm³	3.127 in³
Elastic section modulus (Sy)	51.24 cm³	3.127 in³
Plastic section modulus (Zx)	62.61 cm³	3.820 in³
Plastic section modulus (Zy)	62.61 cm³	3.820 in³
Radius of gyration (rx)	3.37 cm	1.325 in
Radius of gyration (ry)	3.37 cm	1.325 in