RHS 200x100x6.4 Açotubo · Weight & Dimensions

Açotubo, cold-formed 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 200x100 cal 3 (México) · Caño estructural 200x100 (Argentina)

The RHS 200x100x6.4 steel profile weighs 28.0 kg/m (18.84 lb/ft), has a depth of 200 mm (7.87 in), flange width 100 mm (3.94 in). Cross-sectional area: 3,570.679 mm². Moment of inertia Ix = 1,796.663 cm⁴, Iy = 607.224 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.4 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	200 mm	7.87 in
Width (b)	100 mm	3.94 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	28.0 kg/m	18.84 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,570.68 mm²	5.535 in²
Moment of inertia (Ix)	1,796.66 cm⁴	43.16 in⁴
Moment of inertia (Iy)	607.22 cm⁴	14.59 in⁴
Elastic section modulus (Sx)	179.67 cm³	10.964 in³
Elastic section modulus (Sy)	121.44 cm³	7.411 in³
Plastic section modulus (Zx)	225.62 cm³	13.768 in³
Plastic section modulus (Zy)	138.99 cm³	8.482 in³
Radius of gyration (rx)	7.09 cm	2.793 in
Radius of gyration (ry)	4.12 cm	1.624 in