RHS 50x38x3 SAISC · Weight & Dimensions

SAISC, 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 50x38 cal 11 (México) · Caño estructural 50x38 (Argentina)

The RHS 50x38x3 steel profile weighs 3.6 kg/m (2.43 lb/ft), has a depth of 50 mm (1.97 in), flange width 38 mm (1.50 in). Cross-sectional area: 468.823 mm². Moment of inertia Ix = 15.486 cm⁴, Iy = 10.063 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3 mm ≈ 11 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	50 mm	1.97 in
Width (b)	38 mm	1.50 in
Thickness (t)	3 mm	0.12 in
Fillet radius (r)	6 mm	0.24 in
Weight	3.6 kg/m	2.43 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	468.82 mm²	0.727 in²
Moment of inertia (Ix)	15.49 cm⁴	0.37 in⁴
Moment of inertia (Iy)	10.06 cm⁴	0.24 in⁴
Elastic section modulus (Sx)	6.19 cm³	0.378 in³
Elastic section modulus (Sy)	5.3 cm³	0.323 in³
Plastic section modulus (Zx)	7.7 cm³	0.470 in³
Plastic section modulus (Zy)	6.36 cm³	0.388 in³
Radius of gyration (rx)	1.82 cm	0.716 in
Radius of gyration (ry)	1.47 cm	0.577 in