SHS 85x85x8.2 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 85x85 (México) · Caño estructural 85x85 (Argentina)

The SHS 85x85x8.2 steel profile weighs 18.4 kg/m (12.38 lb/ft), has a depth of 85 mm (3.35 in), flange width 85 mm (3.35 in). Cross-sectional area: 2,345.882 mm². Moment of inertia Ix = 221.512 cm⁴, Iy = 221.512 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	85 mm	3.35 in
Width (b)	85 mm	3.35 in
Thickness (t)	8.2 mm	0.32 in
Fillet radius (r)	16.4 mm	0.65 in
Weight	18.4 kg/m	12.38 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,345.88 mm²	3.636 in²
Moment of inertia (Ix)	221.51 cm⁴	5.32 in⁴
Moment of inertia (Iy)	221.51 cm⁴	5.32 in⁴
Elastic section modulus (Sx)	52.12 cm³	3.181 in³
Elastic section modulus (Sy)	52.12 cm³	3.181 in³
Plastic section modulus (Zx)	65.73 cm³	4.011 in³
Plastic section modulus (Zy)	65.73 cm³	4.011 in³
Radius of gyration (rx)	3.07 cm	1.210 in
Radius of gyration (ry)	3.07 cm	1.210 in