RHS 310x170x9.5 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 310x170 (México) · Caño estructural 310x170 (Argentina)

The RHS 310x170x9.5 steel profile weighs 66.9 kg/m (44.98 lb/ft), has a depth of 310 mm (12.20 in), flange width 170 mm (6.69 in). Cross-sectional area: 8,526.586 mm². Moment of inertia Ix = 10,650.455 cm⁴, Iy = 4,182.012 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	310 mm	12.20 in
Width (b)	170 mm	6.69 in
Thickness (t)	9.5 mm	0.37 in
Fillet radius (r)	19 mm	0.75 in
Weight	66.9 kg/m	44.98 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,526.59 mm²	13.216 in²
Moment of inertia (Ix)	10,650.46 cm⁴	255.88 in⁴
Moment of inertia (Iy)	4,182.01 cm⁴	100.47 in⁴
Elastic section modulus (Sx)	687.13 cm³	41.931 in³
Elastic section modulus (Sy)	492 cm³	30.024 in³
Plastic section modulus (Zx)	851.93 cm³	51.988 in³
Plastic section modulus (Zy)	561.64 cm³	34.273 in³
Radius of gyration (rx)	11.18 cm	4.400 in
Radius of gyration (ry)	7 cm	2.757 in