RHS 115x75x4.25 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 8 (México) · Caño estructural 115x75 (Argentina)

The RHS 115x75x4.25 steel profile weighs 11.8 kg/m (7.90 lb/ft), has a depth of 115 mm (4.53 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,496.235 mm². Moment of inertia Ix = 266.194 cm⁴, Iy = 137.043 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.25 mm ≈ 8 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	115 mm	4.53 in
Width (b)	75 mm	2.95 in
Thickness (t)	4.3 mm	0.17 in
Fillet radius (r)	8.5 mm	0.33 in
Weight	11.8 kg/m	7.90 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,496.24 mm²	2.319 in²
Moment of inertia (Ix)	266.19 cm⁴	6.40 in⁴
Moment of inertia (Iy)	137.04 cm⁴	3.29 in⁴
Elastic section modulus (Sx)	46.29 cm³	2.825 in³
Elastic section modulus (Sy)	36.54 cm³	2.230 in³
Plastic section modulus (Zx)	56.77 cm³	3.464 in³
Plastic section modulus (Zy)	42.27 cm³	2.579 in³
Radius of gyration (rx)	4.22 cm	1.661 in
Radius of gyration (ry)	3.03 cm	1.192 in