RHS 127x63.5x6.35 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 127x63.5 cal 3 (México) · Caño estructural 127x63.5 (Argentina)

The RHS 127x63.5x6.35 steel profile weighs 16.9 kg/m (11.36 lb/ft), has a depth of 127 mm (5.00 in), flange width 63.5 mm (2.50 in). Cross-sectional area: 2,154.221 mm². Moment of inertia Ix = 411.511 cm⁴, Iy = 136.457 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.35 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	127 mm	5.00 in
Width (b)	63.5 mm	2.50 in
Thickness (t)	6.3 mm	0.25 in
Fillet radius (r)	12.7 mm	0.50 in
Weight	16.9 kg/m	11.36 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,154.22 mm²	3.339 in²
Moment of inertia (Ix)	411.51 cm⁴	9.89 in⁴
Moment of inertia (Iy)	136.46 cm⁴	3.28 in⁴
Elastic section modulus (Sx)	64.8 cm³	3.955 in³
Elastic section modulus (Sy)	42.98 cm³	2.623 in³
Plastic section modulus (Zx)	83.66 cm³	5.105 in³
Plastic section modulus (Zy)	51.11 cm³	3.119 in³
Radius of gyration (rx)	4.37 cm	1.721 in
Radius of gyration (ry)	2.52 cm	0.991 in