SHS 75x75x6.4 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 75x75 cal 3 (México) · Caño estructural 75x75 (Argentina)

The SHS 75x75x6.4 steel profile weighs 13.0 kg/m (8.71 lb/ft), has a depth of 75 mm (2.95 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,650.679 mm². Moment of inertia Ix = 125.082 cm⁴, Iy = 125.082 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	75 mm	2.95 in
Width (b)	75 mm	2.95 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	13.0 kg/m	8.71 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,650.68 mm²	2.559 in²
Moment of inertia (Ix)	125.08 cm⁴	3.01 in⁴
Moment of inertia (Iy)	125.08 cm⁴	3.01 in⁴
Elastic section modulus (Sx)	33.36 cm³	2.035 in³
Elastic section modulus (Sy)	33.36 cm³	2.035 in³
Plastic section modulus (Zx)	41.48 cm³	2.531 in³
Plastic section modulus (Zy)	41.48 cm³	2.531 in³
Radius of gyration (rx)	2.75 cm	1.084 in
Radius of gyration (ry)	2.75 cm	1.084 in