RHS 100x80x8 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 100x80x8 steel profile weighs 19.3 kg/m (12.97 lb/ft), has a depth of 100 mm (3.94 in), flange width 80 mm (3.15 in). Cross-sectional area: 2,459.186 mm². Moment of inertia Ix = 311.891 cm⁴, Iy = 218.837 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)	8 mm	0.31 in
Fillet radius (r)	16 mm	0.63 in
Weight	19.3 kg/m	12.97 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,459.19 mm²	3.812 in²
Moment of inertia (Ix)	311.89 cm⁴	7.49 in⁴
Moment of inertia (Iy)	218.84 cm⁴	5.26 in⁴
Elastic section modulus (Sx)	62.38 cm³	3.807 in³
Elastic section modulus (Sy)	54.71 cm³	3.339 in³
Plastic section modulus (Zx)	79.11 cm³	4.828 in³
Plastic section modulus (Zy)	67.64 cm³	4.128 in³
Radius of gyration (rx)	3.56 cm	1.402 in
Radius of gyration (ry)	2.98 cm	1.174 in