RHS 305x152x6.4 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 305x152 cal 3 (México) · Caño estructural 305x152 (Argentina)

The RHS 305x152x6.4 steel profile weighs 43.5 kg/m (29.23 lb/ft), has a depth of 305 mm (12.01 in), flange width 152 mm (5.98 in). Cross-sectional area: 5,580.279 mm². Moment of inertia Ix = 6,757.235 cm⁴, Iy = 2,299.121 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	305 mm	12.01 in
Width (b)	152 mm	5.98 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	43.5 kg/m	29.23 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,580.28 mm²	8.649 in²
Moment of inertia (Ix)	6,757.23 cm⁴	162.34 in⁴
Moment of inertia (Iy)	2,299.12 cm⁴	55.24 in⁴
Elastic section modulus (Sx)	443.1 cm³	27.040 in³
Elastic section modulus (Sy)	302.52 cm³	18.461 in³
Plastic section modulus (Zx)	547.74 cm³	33.425 in³
Plastic section modulus (Zy)	338.33 cm³	20.646 in³
Radius of gyration (rx)	11 cm	4.332 in
Radius of gyration (ry)	6.42 cm	2.527 in