RHS 50x25x0.9 Acindar · Weight & Dimensions

Acindar, cold-formed sections · Rectangular Hollow Section

Rectangular Hollow Sections (RHS) are tubular profiles with excellent torsional resistance and aesthetic appeal. Used for columns, trusses, and exposed structural elements.

Also known as: PTR 50x25 cal 18 (México) · Caño estructural 50x25 (Argentina)

The RHS 50x25x0.9 steel profile weighs 1.0 kg/m (0.69 lb/ft), has a depth of 50 mm (1.97 in), flange width 25 mm (0.98 in). Cross-sectional area: 129.674 mm². Moment of inertia Ix = 4.264 cm⁴, Iy = 1.463 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	50 mm	1.97 in
Width (b)	25 mm	0.98 in
Thickness (t)	0.9 mm	0.04 in
Fillet radius (r)	1.8 mm	0.07 in
Weight	1.0 kg/m	0.69 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	129.67 mm²	0.201 in²
Moment of inertia (Ix)	4.26 cm⁴	0.10 in⁴
Moment of inertia (Iy)	1.46 cm⁴	0.04 in⁴
Elastic section modulus (Sx)	1.71 cm³	0.104 in³
Elastic section modulus (Sy)	1.17 cm³	0.071 in³
Plastic section modulus (Zx)	2.1 cm³	0.128 in³
Plastic section modulus (Zy)	1.3 cm³	0.079 in³
Radius of gyration (rx)	1.81 cm	0.714 in
Radius of gyration (ry)	1.06 cm	0.418 in