SHS 85x85x7.1 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 85x85x7.1 steel profile weighs 16.4 kg/m (10.99 lb/ft), has a depth of 85 mm (3.35 in), flange width 85 mm (3.35 in). Cross-sectional area: 2,082.543 mm². Moment of inertia Ix = 203.678 cm⁴, Iy = 203.678 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)	7.1 mm	0.28 in
Fillet radius (r)	14.2 mm	0.56 in
Weight	16.4 kg/m	10.99 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,082.54 mm²	3.228 in²
Moment of inertia (Ix)	203.68 cm⁴	4.89 in⁴
Moment of inertia (Iy)	203.68 cm⁴	4.89 in⁴
Elastic section modulus (Sx)	47.92 cm³	2.925 in³
Elastic section modulus (Sy)	47.92 cm³	2.925 in³
Plastic section modulus (Zx)	59.46 cm³	3.629 in³
Plastic section modulus (Zy)	59.46 cm³	3.629 in³
Radius of gyration (rx)	3.13 cm	1.231 in
Radius of gyration (ry)	3.13 cm	1.231 in