RHS 305x102x7.9 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 305x102 (México) · Caño estructural 305x102 (Argentina)

The RHS 305x102x7.9 steel profile weighs 47.4 kg/m (31.86 lb/ft), has a depth of 305 mm (12.01 in), flange width 102 mm (4.02 in). Cross-sectional area: 6,020.24 mm². Moment of inertia Ix = 6,375.447 cm⁴, Iy = 1,114.309 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	305 mm	12.01 in
Width (b)	102 mm	4.02 in
Thickness (t)	7.9 mm	0.31 in
Fillet radius (r)	15.8 mm	0.62 in
Weight	47.4 kg/m	31.86 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	6,020.24 mm²	9.331 in²
Moment of inertia (Ix)	6,375.45 cm⁴	153.17 in⁴
Moment of inertia (Iy)	1,114.31 cm⁴	26.77 in⁴
Elastic section modulus (Sx)	418.06 cm³	25.512 in³
Elastic section modulus (Sy)	218.49 cm³	13.333 in³
Plastic section modulus (Zx)	545.5 cm³	33.288 in³
Plastic section modulus (Zy)	248.13 cm³	15.142 in³
Radius of gyration (rx)	10.29 cm	4.051 in
Radius of gyration (ry)	4.3 cm	1.694 in