SHS 125x125x6.4 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 125x125 cal 3 (México) · Caño estructural 125x125 (Argentina)

The SHS 125x125x6.4 steel profile weighs 23.0 kg/m (15.46 lb/ft), has a depth of 125 mm (4.92 in), flange width 125 mm (4.92 in). Cross-sectional area: 2,930.679 mm². Moment of inertia Ix = 674.254 cm⁴, Iy = 674.254 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	125 mm	4.92 in
Width (b)	125 mm	4.92 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	23.0 kg/m	15.46 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,930.68 mm²	4.543 in²
Moment of inertia (Ix)	674.25 cm⁴	16.20 in⁴
Moment of inertia (Iy)	674.25 cm⁴	16.20 in⁴
Elastic section modulus (Sx)	107.88 cm³	6.583 in³
Elastic section modulus (Sy)	107.88 cm³	6.583 in³
Plastic section modulus (Zx)	128.7 cm³	7.854 in³
Plastic section modulus (Zy)	128.7 cm³	7.854 in³
Radius of gyration (rx)	4.8 cm	1.888 in
Radius of gyration (ry)	4.8 cm	1.888 in