RHS 100x40x1.9 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 100x40 cal 15 (México) · Caño estructural 100x40 (Argentina)

The RHS 100x40x1.9 steel profile weighs 4.0 kg/m (2.68 lb/ft), has a depth of 100 mm (3.94 in), flange width 40 mm (1.57 in). Cross-sectional area: 508.263 mm². Moment of inertia Ix = 62.476 cm⁴, Iy = 14.946 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.9 mm ≈ 14 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	40 mm	1.57 in
Thickness (t)	1.9 mm	0.07 in
Fillet radius (r)	3.8 mm	0.15 in
Weight	4.0 kg/m	2.68 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	508.26 mm²	0.788 in²
Moment of inertia (Ix)	62.48 cm⁴	1.50 in⁴
Moment of inertia (Iy)	14.95 cm⁴	0.36 in⁴
Elastic section modulus (Sx)	12.5 cm³	0.763 in³
Elastic section modulus (Sy)	7.47 cm³	0.456 in³
Plastic section modulus (Zx)	15.79 cm³	0.963 in³
Plastic section modulus (Zy)	8.3 cm³	0.507 in³
Radius of gyration (rx)	3.51 cm	1.380 in
Radius of gyration (ry)	1.71 cm	0.675 in