SHS 85x85x4.8 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 cal 6 (México) · Caño estructural 85x85 (Argentina)

The SHS 85x85x4.8 steel profile weighs 11.6 kg/m (7.81 lb/ft), has a depth of 85 mm (3.35 in), flange width 85 mm (3.35 in). Cross-sectional area: 1,480.507 mm². Moment of inertia Ix = 155.409 cm⁴, Iy = 155.409 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.8 mm ≈ 7 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	85 mm	3.35 in
Width (b)	85 mm	3.35 in
Thickness (t)	4.8 mm	0.19 in
Fillet radius (r)	9.6 mm	0.38 in
Weight	11.6 kg/m	7.81 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,480.51 mm²	2.295 in²
Moment of inertia (Ix)	155.41 cm⁴	3.73 in⁴
Moment of inertia (Iy)	155.41 cm⁴	3.73 in⁴
Elastic section modulus (Sx)	36.57 cm³	2.231 in³
Elastic section modulus (Sy)	36.57 cm³	2.231 in³
Plastic section modulus (Zx)	43.9 cm³	2.679 in³
Plastic section modulus (Zy)	43.9 cm³	2.679 in³
Radius of gyration (rx)	3.24 cm	1.276 in
Radius of gyration (ry)	3.24 cm	1.276 in