RHS 127x50.8x7.95 CISC · Weight & Dimensions

CISC, 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 127x50.8 (México) · Caño estructural 127x50.8 (Argentina)

The RHS 127x50.8x7.95 steel profile weighs 18.9 kg/m (12.72 lb/ft), has a depth of 127 mm (5.00 in), flange width 50.8 mm (2.00 in). Cross-sectional area: 2,411.45 mm². Moment of inertia Ix = 405.837 cm⁴, Iy = 90.181 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	127 mm	5.00 in
Width (b)	50.8 mm	2.00 in
Thickness (t)	8.0 mm	0.31 in
Fillet radius (r)	15.9 mm	0.63 in
Weight	18.9 kg/m	12.72 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,411.45 mm²	3.738 in²
Moment of inertia (Ix)	405.84 cm⁴	9.75 in⁴
Moment of inertia (Iy)	90.18 cm⁴	2.17 in⁴
Elastic section modulus (Sx)	63.91 cm³	3.900 in³
Elastic section modulus (Sy)	35.5 cm³	2.167 in³
Plastic section modulus (Zx)	87.05 cm³	5.312 in³
Plastic section modulus (Zy)	44.21 cm³	2.698 in³
Radius of gyration (rx)	4.1 cm	1.615 in
Radius of gyration (ry)	1.93 cm	0.761 in