RHS 100x50x5 SAISC · Weight & Dimensions

SAISC, 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 cal 6 (México) · Caño estructural 100x50 (Argentina)

The RHS 100x50x5 steel profile weighs 10.5 kg/m (7.05 lb/ft), has a depth of 100 mm (3.94 in), flange width 50 mm (1.97 in). Cross-sectional area: 1,335.619 mm². Moment of inertia Ix = 158.185 cm⁴, Iy = 52.454 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	7.05 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,335.62 mm²	2.070 in²
Moment of inertia (Ix)	158.19 cm⁴	3.80 in⁴
Moment of inertia (Iy)	52.45 cm⁴	1.26 in⁴
Elastic section modulus (Sx)	31.64 cm³	1.931 in³
Elastic section modulus (Sy)	20.98 cm³	1.280 in³
Plastic section modulus (Zx)	40.84 cm³	2.492 in³
Plastic section modulus (Zy)	24.95 cm³	1.523 in³
Radius of gyration (rx)	3.44 cm	1.355 in
Radius of gyration (ry)	1.98 cm	0.780 in