RHS 100x80x6.3 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 cal 4 (México) · Caño estructural 100x80 (Argentina)

The RHS 100x80x6.3 steel profile weighs 15.8 kg/m (10.59 lb/ft), has a depth of 100 mm (3.94 in), flange width 80 mm (3.15 in). Cross-sectional area: 2,007.029 mm². Moment of inertia Ix = 267.363 cm⁴, Iy = 188.301 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.3 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	80 mm	3.15 in
Thickness (t)	6.3 mm	0.25 in
Fillet radius (r)	12.6 mm	0.50 in
Weight	15.8 kg/m	10.59 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,007.03 mm²	3.111 in²
Moment of inertia (Ix)	267.36 cm⁴	6.42 in⁴
Moment of inertia (Iy)	188.3 cm⁴	4.52 in⁴
Elastic section modulus (Sx)	53.47 cm³	3.263 in³
Elastic section modulus (Sy)	47.08 cm³	2.873 in³
Plastic section modulus (Zx)	66.3 cm³	4.046 in³
Plastic section modulus (Zy)	56.77 cm³	3.465 in³
Radius of gyration (rx)	3.65 cm	1.437 in
Radius of gyration (ry)	3.06 cm	1.206 in