SHS 12.5x12.5x0.9 Acindar · Weight & Dimensions

Acindar, 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 12.5x12.5 cal 18 (México) · Caño estructural 12.5x12.5 (Argentina)

The SHS 12.5x12.5x0.9 steel profile weighs 0.3 kg/m (0.21 lb/ft), has a depth of 12.5 mm (0.49 in), flange width 12.5 mm (0.49 in). Cross-sectional area: 39.674 mm². Moment of inertia Ix = 0.087 cm⁴, Iy = 0.087 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 0.9 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	12.5 mm	0.49 in
Width (b)	12.5 mm	0.49 in
Thickness (t)	0.9 mm	0.04 in
Fillet radius (r)	1.8 mm	0.07 in
Weight	0.3 kg/m	0.21 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	39.67 mm²	0.061 in²
Moment of inertia (Ix)	0.09 cm⁴	0.00 in⁴
Moment of inertia (Iy)	0.09 cm⁴	0.00 in⁴
Elastic section modulus (Sx)	0.14 cm³	0.008 in³
Elastic section modulus (Sy)	0.14 cm³	0.008 in³
Plastic section modulus (Zx)	0.17 cm³	0.010 in³
Plastic section modulus (Zy)	0.17 cm³	0.010 in³
Radius of gyration (rx)	0.47 cm	0.184 in
Radius of gyration (ry)	0.47 cm	0.184 in