RHS 310x210x11.1 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 310x210x11.1 steel profile weighs 84.3 kg/m (56.62 lb/ft), has a depth of 310 mm (12.20 in), flange width 210 mm (8.27 in). Cross-sectional area: 10,733.867 mm². Moment of inertia Ix = 14,085.997 cm⁴, Iy = 7,703.219 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)	11.1 mm	0.44 in
Fillet radius (r)	22.2 mm	0.87 in
Weight	84.3 kg/m	56.62 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	10,733.87 mm²	16.637 in²
Moment of inertia (Ix)	14,086 cm⁴	338.42 in⁴
Moment of inertia (Iy)	7,703.22 cm⁴	185.07 in⁴
Elastic section modulus (Sx)	908.77 cm³	55.457 in³
Elastic section modulus (Sy)	733.64 cm³	44.770 in³
Plastic section modulus (Zx)	1,107.92 cm³	67.610 in³
Plastic section modulus (Zy)	847.5 cm³	51.718 in³
Radius of gyration (rx)	11.46 cm	4.510 in
Radius of gyration (ry)	8.47 cm	3.335 in