RHS 310x230x8.2 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 310x230x8.2 steel profile weighs 66.0 kg/m (44.39 lb/ft), has a depth of 310 mm (12.20 in), flange width 230 mm (9.06 in). Cross-sectional area: 8,413.882 mm². Moment of inertia Ix = 11,642.429 cm⁴, Iy = 7,364.648 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)	8.2 mm	0.32 in
Fillet radius (r)	16.4 mm	0.65 in
Weight	66.0 kg/m	44.39 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,413.88 mm²	13.042 in²
Moment of inertia (Ix)	11,642.43 cm⁴	279.71 in⁴
Moment of inertia (Iy)	7,364.65 cm⁴	176.94 in⁴
Elastic section modulus (Sx)	751.12 cm³	45.837 in³
Elastic section modulus (Sy)	640.4 cm³	39.080 in³
Plastic section modulus (Zx)	896.05 cm³	54.680 in³
Plastic section modulus (Zy)	731.23 cm³	44.623 in³
Radius of gyration (rx)	11.76 cm	4.631 in
Radius of gyration (ry)	9.36 cm	3.683 in