RHS 100x50x2.5 Hiasa · Weight & Dimensions

Hiasa, 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 13 (México) · Caño estructural 100x50 (Argentina)

The RHS 100x50x2.5 steel profile weighs 5.6 kg/m (3.74 lb/ft), has a depth of 100 mm (3.94 in), flange width 50 mm (1.97 in). Cross-sectional area: 708.905 mm². Moment of inertia Ix = 91.203 cm⁴, Iy = 31.058 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.5 mm ≈ 12 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	50 mm	1.97 in
Thickness (t)	2.5 mm	0.10 in
Fillet radius (r)	5 mm	0.20 in
Weight	5.6 kg/m	3.74 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	708.9 mm²	1.099 in²
Moment of inertia (Ix)	91.2 cm⁴	2.19 in⁴
Moment of inertia (Iy)	31.06 cm⁴	0.75 in⁴
Elastic section modulus (Sx)	18.24 cm³	1.113 in³
Elastic section modulus (Sy)	12.42 cm³	0.758 in³
Plastic section modulus (Zx)	22.67 cm³	1.384 in³
Plastic section modulus (Zy)	14.01 cm³	0.855 in³
Radius of gyration (rx)	3.59 cm	1.412 in
Radius of gyration (ry)	2.09 cm	0.824 in