RHS 100x50x5 · Weight & Dimensions

EN — 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 cal 6 (México) · Caño estructural 100x50 (Argentina)

The RHS 100x50x5 steel profile weighs 10.5 kg/m (7.06 lb/ft), has a depth of 100 mm (3.94 in), flange width 50 mm (1.97 in). Cross-sectional area: 1,400 mm². Moment of inertia Ix = 173.67 cm⁴, Iy = 56.17 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 5 mm ≈ 6 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 mm	0.20 in
Fillet radius (r)	10 mm	0.39 in
Weight	10.5 kg/m	7.06 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,400 mm²	2.170 in²
Moment of inertia (Ix)	173.67 cm⁴	4.17 in⁴
Moment of inertia (Iy)	56.17 cm⁴	1.35 in⁴
Elastic section modulus (Sx)	34.73 cm³	2.119 in³
Elastic section modulus (Sy)	22.47 cm³	1.371 in³
Plastic section modulus (Zx)	44 cm³	2.685 in³
Plastic section modulus (Zy)	26.5 cm³	1.617 in³
Radius of gyration (rx)	3.52 cm	1.386 in
Radius of gyration (ry)	2 cm	0.787 in