RHS 100x80x7.1 V&M do Brasil · Weight & Dimensions

V&M do Brasil, hot-rolled 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 100x80 (México) · Caño estructural 100x80 (Argentina)

The RHS 100x80x7.1 steel profile weighs 17.5 kg/m (11.73 lb/ft), has a depth of 100 mm (3.94 in), flange width 80 mm (3.15 in). Cross-sectional area: 2,224.543 mm². Moment of inertia Ix = 289.638 cm⁴, Iy = 203.622 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	80 mm	3.15 in
Thickness (t)	7.1 mm	0.28 in
Fillet radius (r)	14.2 mm	0.56 in
Weight	17.5 kg/m	11.73 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,224.54 mm²	3.448 in²
Moment of inertia (Ix)	289.64 cm⁴	6.96 in⁴
Moment of inertia (Iy)	203.62 cm⁴	4.89 in⁴
Elastic section modulus (Sx)	57.93 cm³	3.535 in³
Elastic section modulus (Sy)	50.91 cm³	3.106 in³
Plastic section modulus (Zx)	72.58 cm³	4.429 in³
Plastic section modulus (Zy)	62.11 cm³	3.790 in³
Radius of gyration (rx)	3.61 cm	1.421 in
Radius of gyration (ry)	3.03 cm	1.191 in