RHS 100x75x5 Tecnometal · Weight & Dimensions

Tecnometal, cold-formed sections (Brazil) · 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 100x75 cal 6 (México) · Caño estructural 100x75 (Argentina)

The RHS 100x75x5 steel profile weighs 12.4 kg/m (8.37 lb/ft), has a depth of 100 mm (3.94 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,585.619 mm². Moment of inertia Ix = 214.644 cm⁴, Iy = 137.003 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)	75 mm	2.95 in
Thickness (t)	5 mm	0.20 in
Fillet radius (r)	10 mm	0.39 in
Weight	12.4 kg/m	8.37 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,585.62 mm²	2.458 in²
Moment of inertia (Ix)	214.64 cm⁴	5.16 in⁴
Moment of inertia (Iy)	137 cm⁴	3.29 in⁴
Elastic section modulus (Sx)	42.93 cm³	2.620 in³
Elastic section modulus (Sy)	36.53 cm³	2.229 in³
Plastic section modulus (Zx)	52.72 cm³	3.217 in³
Plastic section modulus (Zy)	43.21 cm³	2.637 in³
Radius of gyration (rx)	3.68 cm	1.449 in
Radius of gyration (ry)	2.94 cm	1.157 in