RHS 102x76x4 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 102x76 cal 8 (México) · Caño estructural 102x76 (Argentina)

The RHS 102x76x4 steel profile weighs 10.2 kg/m (6.86 lb/ft), has a depth of 102 mm (4.02 in), flange width 76 mm (2.99 in). Cross-sectional area: 1,318.796 mm². Moment of inertia Ix = 191.037 cm⁴, Iy = 121.114 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4 mm ≈ 8 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	102 mm	4.02 in
Width (b)	76 mm	2.99 in
Thickness (t)	4 mm	0.16 in
Fillet radius (r)	8 mm	0.31 in
Weight	10.2 kg/m	6.86 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,318.8 mm²	2.044 in²
Moment of inertia (Ix)	191.04 cm⁴	4.59 in⁴
Moment of inertia (Iy)	121.11 cm⁴	2.91 in⁴
Elastic section modulus (Sx)	37.46 cm³	2.286 in³
Elastic section modulus (Sy)	31.87 cm³	1.945 in³
Plastic section modulus (Zx)	45.39 cm³	2.770 in³
Plastic section modulus (Zy)	37.09 cm³	2.263 in³
Radius of gyration (rx)	3.81 cm	1.498 in
Radius of gyration (ry)	3.03 cm	1.193 in