SHS 65x65x6.4 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 65x65 cal 3 (México) · Caño estructural 65x65 (Argentina)

The SHS 65x65x6.4 steel profile weighs 10.9 kg/m (7.36 lb/ft), has a depth of 65 mm (2.56 in), flange width 65 mm (2.56 in). Cross-sectional area: 1,394.679 mm². Moment of inertia Ix = 76.59 cm⁴, Iy = 76.59 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	65 mm	2.56 in
Width (b)	65 mm	2.56 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	10.9 kg/m	7.36 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,394.68 mm²	2.162 in²
Moment of inertia (Ix)	76.59 cm⁴	1.84 in⁴
Moment of inertia (Iy)	76.59 cm⁴	1.84 in⁴
Elastic section modulus (Sx)	23.57 cm³	1.438 in³
Elastic section modulus (Sy)	23.57 cm³	1.438 in³
Plastic section modulus (Zx)	29.8 cm³	1.818 in³
Plastic section modulus (Zy)	29.8 cm³	1.818 in³
Radius of gyration (rx)	2.34 cm	0.923 in
Radius of gyration (ry)	2.34 cm	0.923 in