RHS 100x75x6.3 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 100x75 cal 4 (México) · Caño estructural 100x75 (Argentina)

The RHS 100x75x6.3 steel profile weighs 15.3 kg/m (10.25 lb/ft), has a depth of 100 mm (3.94 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,944.029 mm². Moment of inertia Ix = 253.514 cm⁴, Iy = 161.156 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.3 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	75 mm	2.95 in
Thickness (t)	6.3 mm	0.25 in
Fillet radius (r)	12.6 mm	0.50 in
Weight	15.3 kg/m	10.25 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,944.03 mm²	3.013 in²
Moment of inertia (Ix)	253.51 cm⁴	6.09 in⁴
Moment of inertia (Iy)	161.16 cm⁴	3.87 in⁴
Elastic section modulus (Sx)	50.7 cm³	3.094 in³
Elastic section modulus (Sy)	42.97 cm³	2.623 in³
Plastic section modulus (Zx)	63.35 cm³	3.866 in³
Plastic section modulus (Zy)	51.83 cm³	3.163 in³
Radius of gyration (rx)	3.61 cm	1.422 in
Radius of gyration (ry)	2.88 cm	1.134 in