RHS 100x40x5 Tata Steel Hybox · Weight & Dimensions

Tata Steel Hybox · 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 6 (México) · Caño estructural 100x40 (Argentina)

The RHS 100x40x5 steel profile weighs 9.7 kg/m (6.52 lb/ft), has a depth of 100 mm (3.94 in), flange width 40 mm (1.57 in). Cross-sectional area: 1,235.619 mm². Moment of inertia Ix = 135.602 cm⁴, Iy = 30.759 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)	40 mm	1.57 in
Thickness (t)	5 mm	0.20 in
Fillet radius (r)	10 mm	0.39 in
Weight	9.7 kg/m	6.52 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,235.62 mm²	1.915 in²
Moment of inertia (Ix)	135.6 cm⁴	3.26 in⁴
Moment of inertia (Iy)	30.76 cm⁴	0.74 in⁴
Elastic section modulus (Sx)	27.12 cm³	1.655 in³
Elastic section modulus (Sy)	15.38 cm³	0.939 in³
Plastic section modulus (Zx)	36.09 cm³	2.202 in³
Plastic section modulus (Zy)	18.52 cm³	1.130 in³
Radius of gyration (rx)	3.31 cm	1.304 in
Radius of gyration (ry)	1.58 cm	0.621 in