SHS 50.8x50.8x3.18 CISC · Weight & Dimensions

CISC, 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 50.8x50.8 cal 11 (México) · Caño estructural 50.8x50.8 (Argentina)

The SHS 50.8x50.8x3.18 steel profile weighs 4.5 kg/m (3.06 lb/ft), has a depth of 50.8 mm (2.00 in), flange width 50.8 mm (2.00 in). Cross-sectional area: 579.685 mm². Moment of inertia Ix = 21.396 cm⁴, Iy = 21.396 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3.18 mm ≈ 10 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	50.8 mm	2.00 in
Width (b)	50.8 mm	2.00 in
Thickness (t)	3.2 mm	0.13 in
Fillet radius (r)	6.4 mm	0.25 in
Weight	4.5 kg/m	3.06 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	579.68 mm²	0.899 in²
Moment of inertia (Ix)	21.4 cm⁴	0.51 in⁴
Moment of inertia (Iy)	21.4 cm⁴	0.51 in⁴
Elastic section modulus (Sx)	8.42 cm³	0.514 in³
Elastic section modulus (Sy)	8.42 cm³	0.514 in³
Plastic section modulus (Zx)	10.19 cm³	0.622 in³
Plastic section modulus (Zy)	10.19 cm³	0.622 in³
Radius of gyration (rx)	1.92 cm	0.756 in
Radius of gyration (ry)	1.92 cm	0.756 in