RHS 100x40x1.5 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 100x40 cal 16 (México) · Caño estructural 100x40 (Argentina)

The RHS 100x40x1.5 steel profile weighs 3.2 kg/m (2.14 lb/ft), has a depth of 100 mm (3.94 in), flange width 40 mm (1.57 in). Cross-sectional area: 405.206 mm². Moment of inertia Ix = 50.494 cm⁴, Iy = 12.164 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.5 mm ≈ 16 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	40 mm	1.57 in
Thickness (t)	1.5 mm	0.06 in
Fillet radius (r)	3 mm	0.12 in
Weight	3.2 kg/m	2.14 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	405.21 mm²	0.628 in²
Moment of inertia (Ix)	50.49 cm⁴	1.21 in⁴
Moment of inertia (Iy)	12.16 cm⁴	0.29 in⁴
Elastic section modulus (Sx)	10.1 cm³	0.616 in³
Elastic section modulus (Sy)	6.08 cm³	0.371 in³
Plastic section modulus (Zx)	12.68 cm³	0.774 in³
Plastic section modulus (Zy)	6.69 cm³	0.408 in³
Radius of gyration (rx)	3.53 cm	1.390 in
Radius of gyration (ry)	1.73 cm	0.682 in