RHS 50x30x3.5 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 50x30 cal 11 (México) · Caño estructural 50x30 (Argentina)

The RHS 50x30x3.5 steel profile weighs 3.8 kg/m (2.53 lb/ft), has a depth of 50 mm (1.97 in), flange width 30 mm (1.18 in). Cross-sectional area: 479.454 mm². Moment of inertia Ix = 14.145 cm⁴, Iy = 6.245 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3.5 mm ≈ 10 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	50 mm	1.97 in
Width (b)	30 mm	1.18 in
Thickness (t)	3.5 mm	0.14 in
Fillet radius (r)	7 mm	0.28 in
Weight	3.8 kg/m	2.53 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	479.45 mm²	0.743 in²
Moment of inertia (Ix)	14.15 cm⁴	0.34 in⁴
Moment of inertia (Iy)	6.24 cm⁴	0.15 in⁴
Elastic section modulus (Sx)	5.66 cm³	0.345 in³
Elastic section modulus (Sy)	4.16 cm³	0.254 in³
Plastic section modulus (Zx)	7.35 cm³	0.449 in³
Plastic section modulus (Zy)	5.11 cm³	0.312 in³
Radius of gyration (rx)	1.72 cm	0.676 in
Radius of gyration (ry)	1.14 cm	0.449 in