RHS 40x15x1.2 Hiasa · Weight & Dimensions

Hiasa, 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 40x15 cal 18 (México) · Caño estructural 40x15 (Argentina)

The RHS 40x15x1.2 steel profile weighs 1.0 kg/m (0.65 lb/ft), has a depth of 40 mm (1.57 in), flange width 15 mm (0.59 in). Cross-sectional area: 122.532 mm². Moment of inertia Ix = 2.274 cm⁴, Iy = 0.479 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.2 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	40 mm	1.57 in
Width (b)	15 mm	0.59 in
Thickness (t)	1.2 mm	0.05 in
Fillet radius (r)	2.4 mm	0.09 in
Weight	1.0 kg/m	0.65 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	122.53 mm²	0.190 in²
Moment of inertia (Ix)	2.27 cm⁴	0.05 in⁴
Moment of inertia (Iy)	0.48 cm⁴	0.01 in⁴
Elastic section modulus (Sx)	1.14 cm³	0.069 in³
Elastic section modulus (Sy)	0.64 cm³	0.039 in³
Plastic section modulus (Zx)	1.47 cm³	0.090 in³
Plastic section modulus (Zy)	0.73 cm³	0.045 in³
Radius of gyration (rx)	1.36 cm	0.536 in
Radius of gyration (ry)	0.63 cm	0.246 in