RHS 400x200x8 · Weight & Dimensions

EN — 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 400x200 (México) · Caño estructural 400x200 (Argentina)

The RHS 400x200x8 steel profile weighs 70.4 kg/m (47.31 lb/ft), has a depth of 400 mm (15.75 in), flange width 200 mm (7.87 in). Cross-sectional area: 9,344 mm². Moment of inertia Ix = 19,844.57 cm⁴, Iy = 6,732.25 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	400 mm	15.75 in
Width (b)	200 mm	7.87 in
Thickness (t)	8 mm	0.31 in
Fillet radius (r)	16 mm	0.63 in
Weight	70.4 kg/m	47.31 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,344 mm²	14.483 in²
Moment of inertia (Ix)	19,844.57 cm⁴	476.77 in⁴
Moment of inertia (Iy)	6,732.25 cm⁴	161.74 in⁴
Elastic section modulus (Sx)	992.23 cm³	60.550 in³
Elastic section modulus (Sy)	673.23 cm³	41.083 in³
Plastic section modulus (Zx)	1,217.02 cm³	74.267 in³
Plastic section modulus (Zy)	749.82 cm³	45.757 in³
Radius of gyration (rx)	14.57 cm	5.736 in
Radius of gyration (ry)	8.49 cm	3.343 in