RHS 310x170x11.1 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 310x170 (México) · Caño estructural 310x170 (Argentina)

The RHS 310x170x11.1 steel profile weighs 77.3 kg/m (51.94 lb/ft), has a depth of 310 mm (12.20 in), flange width 170 mm (6.69 in). Cross-sectional area: 9,845.867 mm². Moment of inertia Ix = 12,101.711 cm⁴, Iy = 4,730.722 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)	11.1 mm	0.44 in
Fillet radius (r)	22.2 mm	0.87 in
Weight	77.3 kg/m	51.94 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,845.87 mm²	15.261 in²
Moment of inertia (Ix)	12,101.71 cm⁴	290.74 in⁴
Moment of inertia (Iy)	4,730.72 cm⁴	113.66 in⁴
Elastic section modulus (Sx)	780.76 cm³	47.645 in³
Elastic section modulus (Sy)	556.56 cm³	33.963 in³
Plastic section modulus (Zx)	975.21 cm³	59.511 in³
Plastic section modulus (Zy)	641.71 cm³	39.159 in³
Radius of gyration (rx)	11.09 cm	4.365 in
Radius of gyration (ry)	6.93 cm	2.729 in