RHS 40x30x2 Cintac · Weight & Dimensions

Cintac, 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 40x30 cal 15 (México) · Caño estructural 40x30 (Argentina)

The RHS 40x30x2 steel profile weighs 2.0 kg/m (1.34 lb/ft), has a depth of 40 mm (1.57 in), flange width 30 mm (1.18 in). Cross-sectional area: 253.699 mm². Moment of inertia Ix = 5.495 cm⁴, Iy = 3.507 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2 mm ≈ 14 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	40 mm	1.57 in
Width (b)	30 mm	1.18 in
Thickness (t)	2 mm	0.08 in
Fillet radius (r)	4 mm	0.16 in
Weight	2.0 kg/m	1.34 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	253.7 mm²	0.393 in²
Moment of inertia (Ix)	5.49 cm⁴	0.13 in⁴
Moment of inertia (Iy)	3.51 cm⁴	0.08 in⁴
Elastic section modulus (Sx)	2.75 cm³	0.168 in³
Elastic section modulus (Sy)	2.34 cm³	0.143 in³
Plastic section modulus (Zx)	3.37 cm³	0.206 in³
Plastic section modulus (Zy)	2.77 cm³	0.169 in³
Radius of gyration (rx)	1.47 cm	0.579 in
Radius of gyration (ry)	1.18 cm	0.463 in