SHS 178x178x6.4 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 cal 3 (México) · Caño estructural 178x178 (Argentina)

The SHS 178x178x6.4 steel profile weighs 33.4 kg/m (22.43 lb/ft), has a depth of 178 mm (7.01 in), flange width 178 mm (7.01 in). Cross-sectional area: 4,287.479 mm². Moment of inertia Ix = 2,077.689 cm⁴, Iy = 2,077.689 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	178 mm	7.01 in
Width (b)	178 mm	7.01 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	33.4 kg/m	22.43 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,287.48 mm²	6.646 in²
Moment of inertia (Ix)	2,077.69 cm⁴	49.92 in⁴
Moment of inertia (Iy)	2,077.69 cm⁴	49.92 in⁴
Elastic section modulus (Sx)	233.45 cm³	14.246 in³
Elastic section modulus (Sy)	233.45 cm³	14.246 in³
Plastic section modulus (Zx)	273.56 cm³	16.694 in³
Plastic section modulus (Zy)	273.56 cm³	16.694 in³
Radius of gyration (rx)	6.96 cm	2.741 in
Radius of gyration (ry)	6.96 cm	2.741 in