RHS 310x210x9.5 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 310x210 (México) · Caño estructural 310x210 (Argentina)

The RHS 310x210x9.5 steel profile weighs 72.9 kg/m (48.99 lb/ft), has a depth of 310 mm (12.20 in), flange width 210 mm (8.27 in). Cross-sectional area: 9,286.586 mm². Moment of inertia Ix = 12,366.731 cm⁴, Iy = 6,779.757 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)	9.5 mm	0.37 in
Fillet radius (r)	19 mm	0.75 in
Weight	72.9 kg/m	48.99 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,286.59 mm²	14.394 in²
Moment of inertia (Ix)	12,366.73 cm⁴	297.11 in⁴
Moment of inertia (Iy)	6,779.76 cm⁴	162.88 in⁴
Elastic section modulus (Sx)	797.85 cm³	48.688 in³
Elastic section modulus (Sy)	645.69 cm³	39.403 in³
Plastic section modulus (Zx)	966.12 cm³	58.957 in³
Plastic section modulus (Zy)	739.77 cm³	45.144 in³
Radius of gyration (rx)	11.54 cm	4.543 in
Radius of gyration (ry)	8.54 cm	3.364 in