RHS 70x50x2 · Weight & Dimensions

BR — 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 70x50 cal 15 (México) · Caño estructural 70x50 (Argentina)

The RHS 70x50x2 steel profile weighs 3.5 kg/m (2.33 lb/ft), has a depth of 70 mm (2.76 in), flange width 50 mm (1.97 in). Cross-sectional area: 464 mm². Moment of inertia Ix = 32.71 cm⁴, Iy = 19.38 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	70 mm	2.76 in
Width (b)	50 mm	1.97 in
Thickness (t)	2 mm	0.08 in
Fillet radius (r)	4 mm	0.16 in
Weight	3.5 kg/m	2.33 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	464 mm²	0.719 in²
Moment of inertia (Ix)	32.71 cm⁴	0.79 in⁴
Moment of inertia (Iy)	19.38 cm⁴	0.47 in⁴
Elastic section modulus (Sx)	9.35 cm³	0.571 in³
Elastic section modulus (Sy)	7.75 cm³	0.473 in³
Plastic section modulus (Zx)	11.16 cm³	0.681 in³
Plastic section modulus (Zy)	8.84 cm³	0.539 in³
Radius of gyration (rx)	2.66 cm	1.047 in
Radius of gyration (ry)	2.04 cm	0.803 in