RHS 320x220x10.3 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 320x220 (México) · Caño estructural 320x220 (Argentina)

The RHS 320x220x10.3 steel profile weighs 81.8 kg/m (55.00 lb/ft), has a depth of 320 mm (12.60 in), flange width 220 mm (8.66 in). Cross-sectional area: 10,426.435 mm². Moment of inertia Ix = 14,795.995 cm⁴, Iy = 8,294.985 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	320 mm	12.60 in
Width (b)	220 mm	8.66 in
Thickness (t)	10.3 mm	0.41 in
Fillet radius (r)	20.6 mm	0.81 in
Weight	81.8 kg/m	55.00 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	10,426.43 mm²	16.161 in²
Moment of inertia (Ix)	14,795.99 cm⁴	355.47 in⁴
Moment of inertia (Iy)	8,294.99 cm⁴	199.29 in⁴
Elastic section modulus (Sx)	924.75 cm³	56.432 in³
Elastic section modulus (Sy)	754.09 cm³	46.018 in³
Plastic section modulus (Zx)	1,120.24 cm³	68.362 in³
Plastic section modulus (Zy)	866.41 cm³	52.872 in³
Radius of gyration (rx)	11.91 cm	4.690 in
Radius of gyration (ry)	8.92 cm	3.512 in