RHS 115x75x3 Tecnometal · Weight & Dimensions

Tecnometal, cold-formed sections (Brazil) · 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 115x75 cal 11 (México) · Caño estructural 115x75 (Argentina)

The RHS 115x75x3 steel profile weighs 8.5 kg/m (5.70 lb/ft), has a depth of 115 mm (4.53 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,080.823 mm². Moment of inertia Ix = 198.394 cm⁴, Iy = 102.741 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3 mm ≈ 11 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	115 mm	4.53 in
Width (b)	75 mm	2.95 in
Thickness (t)	3 mm	0.12 in
Fillet radius (r)	6 mm	0.24 in
Weight	8.5 kg/m	5.70 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,080.82 mm²	1.675 in²
Moment of inertia (Ix)	198.39 cm⁴	4.77 in⁴
Moment of inertia (Iy)	102.74 cm⁴	2.47 in⁴
Elastic section modulus (Sx)	34.5 cm³	2.106 in³
Elastic section modulus (Sy)	27.4 cm³	1.672 in³
Plastic section modulus (Zx)	41.7 cm³	2.545 in³
Plastic section modulus (Zy)	31.13 cm³	1.899 in³
Radius of gyration (rx)	4.28 cm	1.687 in
Radius of gyration (ry)	3.08 cm	1.214 in