RHS 310x210x10.3 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 310x210 (México) · Caño estructural 310x210 (Argentina)

The RHS 310x210x10.3 steel profile weighs 78.6 kg/m (52.83 lb/ft), has a depth of 310 mm (12.20 in), flange width 210 mm (8.27 in). Cross-sectional area: 10,014.435 mm². Moment of inertia Ix = 13,238.89 cm⁴, Iy = 7,248.902 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	310 mm	12.20 in
Width (b)	210 mm	8.27 in
Thickness (t)	10.3 mm	0.41 in
Fillet radius (r)	20.6 mm	0.81 in
Weight	78.6 kg/m	52.83 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	10,014.43 mm²	15.522 in²
Moment of inertia (Ix)	13,238.89 cm⁴	318.06 in⁴
Moment of inertia (Iy)	7,248.9 cm⁴	174.15 in⁴
Elastic section modulus (Sx)	854.12 cm³	52.122 in³
Elastic section modulus (Sy)	690.37 cm³	42.129 in³
Plastic section modulus (Zx)	1,037.76 cm³	63.328 in³
Plastic section modulus (Zy)	794.23 cm³	48.467 in³
Radius of gyration (rx)	11.5 cm	4.527 in
Radius of gyration (ry)	8.51 cm	3.350 in