RHS 40x10x0.8 Acindar · Weight & Dimensions

Acindar, 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 40x10 (México) · Caño estructural 40x10 (Argentina)

The RHS 40x10x0.8 steel profile weighs 0.6 kg/m (0.40 lb/ft), has a depth of 40 mm (1.57 in), flange width 10 mm (0.39 in). Cross-sectional area: 75.792 mm². Moment of inertia Ix = 1.305 cm⁴, Iy = 0.14 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 0.8 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	40 mm	1.57 in
Width (b)	10 mm	0.39 in
Thickness (t)	0.8 mm	0.03 in
Fillet radius (r)	1.6 mm	0.06 in
Weight	0.6 kg/m	0.40 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	75.79 mm²	0.117 in²
Moment of inertia (Ix)	1.3 cm⁴	0.03 in⁴
Moment of inertia (Iy)	0.14 cm⁴	0.00 in⁴
Elastic section modulus (Sx)	0.65 cm³	0.040 in³
Elastic section modulus (Sy)	0.28 cm³	0.017 in³
Plastic section modulus (Zx)	0.87 cm³	0.053 in³
Plastic section modulus (Zy)	0.31 cm³	0.019 in³
Radius of gyration (rx)	1.31 cm	0.517 in
Radius of gyration (ry)	0.43 cm	0.169 in