RHS 254x51x6.4 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 cal 3 (México) · Caño estructural 254x51 (Argentina)

The RHS 254x51x6.4 steel profile weighs 28.3 kg/m (19.04 lb/ft), has a depth of 254 mm (10.00 in), flange width 51 mm (2.01 in). Cross-sectional area: 3,634.679 mm². Moment of inertia Ix = 2,330.637 cm⁴, Iy = 162.547 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.4 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	254 mm	10.00 in
Width (b)	51 mm	2.01 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	28.3 kg/m	19.04 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,634.68 mm²	5.634 in²
Moment of inertia (Ix)	2,330.64 cm⁴	55.99 in⁴
Moment of inertia (Iy)	162.55 cm⁴	3.91 in⁴
Elastic section modulus (Sx)	183.51 cm³	11.199 in³
Elastic section modulus (Sy)	63.74 cm³	3.890 in³
Plastic section modulus (Zx)	253.72 cm³	15.483 in³
Plastic section modulus (Zy)	74.61 cm³	4.553 in³
Radius of gyration (rx)	8.01 cm	3.153 in
Radius of gyration (ry)	2.11 cm	0.833 in