RHS 254x51x7.9 IMCA · Weight & Dimensions

IMCA, 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 254x51 (México) · Caño estructural 254x51 (Argentina)

The RHS 254x51x7.9 steel profile weighs 34.7 kg/m (23.35 lb/ft), has a depth of 254 mm (10.00 in), flange width 51 mm (2.01 in). Cross-sectional area: 4,408.64 mm². Moment of inertia Ix = 2,746.909 cm⁴, Iy = 185.027 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	254 mm	10.00 in
Width (b)	51 mm	2.01 in
Thickness (t)	7.9 mm	0.31 in
Fillet radius (r)	15.8 mm	0.62 in
Weight	34.7 kg/m	23.35 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,408.64 mm²	6.833 in²
Moment of inertia (Ix)	2,746.91 cm⁴	65.99 in⁴
Moment of inertia (Iy)	185.03 cm⁴	4.45 in⁴
Elastic section modulus (Sx)	216.29 cm³	13.199 in³
Elastic section modulus (Sy)	72.56 cm³	4.428 in³
Plastic section modulus (Zx)	303.1 cm³	18.496 in³
Plastic section modulus (Zy)	87.52 cm³	5.341 in³
Radius of gyration (rx)	7.89 cm	3.108 in
Radius of gyration (ry)	2.05 cm	0.807 in