RHS 400x300x8 Tuboeuropa · Weight & Dimensions

Tuboeuropa, 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 400x300 (México) · Caño estructural 400x300 (Argentina)

The RHS 400x300x8 steel profile weighs 84.0 kg/m (56.45 lb/ft), has a depth of 400 mm (15.75 in), flange width 300 mm (11.81 in). Cross-sectional area: 10,724.248 mm². Moment of inertia Ix = 25,121.831 cm⁴, Iy = 16,212.1 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	400 mm	15.75 in
Width (b)	300 mm	11.81 in
Thickness (t)	8 mm	0.31 in
Fillet radius (r)	20 mm	0.79 in
Weight	84.0 kg/m	56.45 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	10,724.25 mm²	16.623 in²
Moment of inertia (Ix)	25,121.83 cm⁴	603.55 in⁴
Moment of inertia (Iy)	16,212.1 cm⁴	389.50 in⁴
Elastic section modulus (Sx)	1,256.09 cm³	76.652 in³
Elastic section modulus (Sy)	1,080.81 cm³	65.955 in³
Plastic section modulus (Zx)	1,486.89 cm³	90.736 in³
Plastic section modulus (Zy)	1,224.27 cm³	74.710 in³
Radius of gyration (rx)	15.31 cm	6.026 in
Radius of gyration (ry)	12.3 cm	4.841 in