RHS 100x50x5.49 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 100x50 (México) · Caño estructural 100x50 (Argentina)

The RHS 100x50x5.49 steel profile weighs 11.4 kg/m (7.64 lb/ft), has a depth of 100 mm (3.94 in), flange width 50 mm (1.97 in). Cross-sectional area: 1,448.728 mm². Moment of inertia Ix = 168.666 cm⁴, Iy = 55.651 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 5.49 mm ≈ 4 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	50 mm	1.97 in
Thickness (t)	5.5 mm	0.22 in
Fillet radius (r)	11.0 mm	0.43 in
Weight	11.4 kg/m	7.64 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,448.73 mm²	2.246 in²
Moment of inertia (Ix)	168.67 cm⁴	4.05 in⁴
Moment of inertia (Iy)	55.65 cm⁴	1.34 in⁴
Elastic section modulus (Sx)	33.73 cm³	2.059 in³
Elastic section modulus (Sy)	22.26 cm³	1.358 in³
Plastic section modulus (Zx)	43.89 cm³	2.678 in³
Plastic section modulus (Zy)	26.75 cm³	1.633 in³
Radius of gyration (rx)	3.41 cm	1.343 in
Radius of gyration (ry)	1.96 cm	0.772 in