RHS 50x30x0.9 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 50x30 cal 18 (México) · Caño estructural 50x30 (Argentina)

The RHS 50x30x0.9 steel profile weighs 1.1 kg/m (0.73 lb/ft), has a depth of 50 mm (1.97 in), flange width 30 mm (1.18 in). Cross-sectional area: 138.674 mm². Moment of inertia Ix = 4.806 cm⁴, Iy = 2.196 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)	30 mm	1.18 in
Thickness (t)	0.9 mm	0.04 in
Fillet radius (r)	1.8 mm	0.07 in
Weight	1.1 kg/m	0.73 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	138.67 mm²	0.215 in²
Moment of inertia (Ix)	4.81 cm⁴	0.12 in⁴
Moment of inertia (Iy)	2.2 cm⁴	0.05 in⁴
Elastic section modulus (Sx)	1.92 cm³	0.117 in³
Elastic section modulus (Sy)	1.46 cm³	0.089 in³
Plastic section modulus (Zx)	2.32 cm³	0.142 in³
Plastic section modulus (Zy)	1.64 cm³	0.100 in³
Radius of gyration (rx)	1.86 cm	0.733 in
Radius of gyration (ry)	1.26 cm	0.495 in