RHS 310x230x10.3 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 310x230 (México) · Caño estructural 310x230 (Argentina)

The RHS 310x230x10.3 steel profile weighs 81.8 kg/m (55.00 lb/ft), has a depth of 310 mm (12.20 in), flange width 230 mm (9.06 in). Cross-sectional area: 10,426.435 mm². Moment of inertia Ix = 14,164.401 cm⁴, Iy = 8,938.873 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	310 mm	12.20 in
Width (b)	230 mm	9.06 in
Thickness (t)	10.3 mm	0.41 in
Fillet radius (r)	20.6 mm	0.81 in
Weight	81.8 kg/m	55.00 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	10,426.43 mm²	16.161 in²
Moment of inertia (Ix)	14,164.4 cm⁴	340.30 in⁴
Moment of inertia (Iy)	8,938.87 cm⁴	214.76 in⁴
Elastic section modulus (Sx)	913.83 cm³	55.766 in³
Elastic section modulus (Sy)	777.29 cm³	47.434 in³
Plastic section modulus (Zx)	1,099.5 cm³	67.096 in³
Plastic section modulus (Zy)	896.43 cm³	54.704 in³
Radius of gyration (rx)	11.66 cm	4.589 in
Radius of gyration (ry)	9.26 cm	3.645 in