RHS 101.6x50.8x4 Hylsa · Weight & Dimensions

Hylsa, 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 101.6x50.8 cal 8 (México) · Caño estructural 101.6x50.8 (Argentina)

The RHS 101.6x50.8x4 steel profile weighs 8.6 kg/m (5.80 lb/ft), has a depth of 101.6 mm (4.00 in), flange width 50.8 mm (2.00 in). Cross-sectional area: 1,113.996 mm². Moment of inertia Ix = 141.189 cm⁴, Iy = 47.344 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4 mm ≈ 8 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	101.6 mm	4.00 in
Width (b)	50.8 mm	2.00 in
Thickness (t)	4 mm	0.16 in
Fillet radius (r)	8 mm	0.31 in
Weight	8.6 kg/m	5.80 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,114 mm²	1.727 in²
Moment of inertia (Ix)	141.19 cm⁴	3.39 in⁴
Moment of inertia (Iy)	47.34 cm⁴	1.14 in⁴
Elastic section modulus (Sx)	27.79 cm³	1.696 in³
Elastic section modulus (Sy)	18.64 cm³	1.137 in³
Plastic section modulus (Zx)	35.29 cm³	2.154 in³
Plastic section modulus (Zy)	21.67 cm³	1.322 in³
Radius of gyration (rx)	3.56 cm	1.402 in
Radius of gyration (ry)	2.06 cm	0.812 in