RHS 203x102x7.9 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 203x102 (México) · Caño estructural 203x102 (Argentina)

The RHS 203x102x7.9 steel profile weighs 34.7 kg/m (23.35 lb/ft), has a depth of 203 mm (7.99 in), flange width 102 mm (4.02 in). Cross-sectional area: 4,408.64 mm². Moment of inertia Ix = 2,237.519 cm⁴, Iy = 756.711 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	203 mm	7.99 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	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)	2,237.52 cm⁴	53.76 in⁴
Moment of inertia (Iy)	756.71 cm⁴	18.18 in⁴
Elastic section modulus (Sx)	220.45 cm³	13.452 in³
Elastic section modulus (Sy)	148.37 cm³	9.054 in³
Plastic section modulus (Zx)	279.56 cm³	17.060 in³
Plastic section modulus (Zy)	172.3 cm³	10.514 in³
Radius of gyration (rx)	7.12 cm	2.805 in
Radius of gyration (ry)	4.14 cm	1.631 in