RHS 120x100x4.5 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 120x100 cal 6 (México) · Caño estructural 120x100 (Argentina)

The RHS 120x100x4.5 steel profile weighs 14.5 kg/m (9.74 lb/ft), has a depth of 120 mm (4.72 in), flange width 100 mm (3.94 in). Cross-sectional area: 1,846.852 mm². Moment of inertia Ix = 384.641 cm⁴, Iy = 290.357 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.5 mm ≈ 7 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	100 mm	3.94 in
Thickness (t)	4.5 mm	0.18 in
Fillet radius (r)	9 mm	0.35 in
Weight	14.5 kg/m	9.74 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,846.85 mm²	2.863 in²
Moment of inertia (Ix)	384.64 cm⁴	9.24 in⁴
Moment of inertia (Iy)	290.36 cm⁴	6.98 in⁴
Elastic section modulus (Sx)	64.11 cm³	3.912 in³
Elastic section modulus (Sy)	58.07 cm³	3.544 in³
Plastic section modulus (Zx)	76.61 cm³	4.675 in³
Plastic section modulus (Zy)	67.64 cm³	4.128 in³
Radius of gyration (rx)	4.56 cm	1.797 in
Radius of gyration (ry)	3.97 cm	1.561 in