RHS 50x38x2.5 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 13 (México) · Caño estructural 50x38 (Argentina)

The RHS 50x38x2.5 steel profile weighs 3.1 kg/m (2.08 lb/ft), has a depth of 50 mm (1.97 in), flange width 38 mm (1.50 in). Cross-sectional area: 398.905 mm². Moment of inertia Ix = 13.556 cm⁴, Iy = 8.835 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.5 mm ≈ 12 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	50 mm	1.97 in
Width (b)	38 mm	1.50 in
Thickness (t)	2.5 mm	0.10 in
Fillet radius (r)	5 mm	0.20 in
Weight	3.1 kg/m	2.08 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	398.9 mm²	0.618 in²
Moment of inertia (Ix)	13.56 cm⁴	0.33 in⁴
Moment of inertia (Iy)	8.84 cm⁴	0.21 in⁴
Elastic section modulus (Sx)	5.42 cm³	0.331 in³
Elastic section modulus (Sy)	4.65 cm³	0.284 in³
Plastic section modulus (Zx)	6.65 cm³	0.406 in³
Plastic section modulus (Zy)	5.5 cm³	0.336 in³
Radius of gyration (rx)	1.84 cm	0.726 in
Radius of gyration (ry)	1.49 cm	0.586 in