RHS 310x230x9.5 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 310x230x9.5 steel profile weighs 75.9 kg/m (50.99 lb/ft), has a depth of 310 mm (12.20 in), flange width 230 mm (9.06 in). Cross-sectional area: 9,666.586 mm². Moment of inertia Ix = 13,224.87 cm⁴, Iy = 8,353.426 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)	9.5 mm	0.37 in
Fillet radius (r)	19 mm	0.75 in
Weight	75.9 kg/m	50.99 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,666.59 mm²	14.983 in²
Moment of inertia (Ix)	13,224.87 cm⁴	317.73 in⁴
Moment of inertia (Iy)	8,353.43 cm⁴	200.69 in⁴
Elastic section modulus (Sx)	853.22 cm³	52.067 in³
Elastic section modulus (Sy)	726.38 cm³	44.327 in³
Plastic section modulus (Zx)	1,023.22 cm³	62.441 in³
Plastic section modulus (Zy)	834.53 cm³	50.927 in³
Radius of gyration (rx)	11.7 cm	4.605 in
Radius of gyration (ry)	9.3 cm	3.660 in