RHS 80x40x8 Tuflesa · Weight & Dimensions

Tuflesa, 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 80x40 (México) · Caño estructural 80x40 (Argentina)

The RHS 80x40x8 steel profile weighs 12.2 kg/m (8.20 lb/ft), has a depth of 80 mm (3.15 in), flange width 40 mm (1.57 in). Cross-sectional area: 1,554.124 mm². Moment of inertia Ix = 102.289 cm⁴, Iy = 31.694 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	80 mm	3.15 in
Width (b)	40 mm	1.57 in
Thickness (t)	8 mm	0.31 in
Fillet radius (r)	12 mm	0.47 in
Weight	12.2 kg/m	8.20 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,554.12 mm²	2.409 in²
Moment of inertia (Ix)	102.29 cm⁴	2.46 in⁴
Moment of inertia (Iy)	31.69 cm⁴	0.76 in⁴
Elastic section modulus (Sx)	25.57 cm³	1.561 in³
Elastic section modulus (Sy)	15.85 cm³	0.967 in³
Plastic section modulus (Zx)	35.24 cm³	2.150 in³
Plastic section modulus (Zy)	20.8 cm³	1.269 in³
Radius of gyration (rx)	2.57 cm	1.010 in
Radius of gyration (ry)	1.43 cm	0.562 in