SHS 178x178x7.9 IMCA · Weight & Dimensions

IMCA, 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 178x178 (México) · Caño estructural 178x178 (Argentina)

The SHS 178x178x7.9 steel profile weighs 41.1 kg/m (27.60 lb/ft), has a depth of 178 mm (7.01 in), flange width 178 mm (7.01 in). Cross-sectional area: 5,214.44 mm². Moment of inertia Ix = 2,474.67 cm⁴, Iy = 2,474.67 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	178 mm	7.01 in
Width (b)	178 mm	7.01 in
Thickness (t)	7.9 mm	0.31 in
Fillet radius (r)	15.8 mm	0.62 in
Weight	41.1 kg/m	27.60 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,214.44 mm²	8.082 in²
Moment of inertia (Ix)	2,474.67 cm⁴	59.45 in⁴
Moment of inertia (Iy)	2,474.67 cm⁴	59.45 in⁴
Elastic section modulus (Sx)	278.05 cm³	16.968 in³
Elastic section modulus (Sy)	278.05 cm³	16.968 in³
Plastic section modulus (Zx)	329.05 cm³	20.080 in³
Plastic section modulus (Zy)	329.05 cm³	20.080 in³
Radius of gyration (rx)	6.89 cm	2.712 in
Radius of gyration (ry)	6.89 cm	2.712 in