RHS 400x200x8 Tata Steel Hybox · Weight & Dimensions

Tata Steel Hybox · 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 71.6 kg/m (48.12 lb/ft), has a depth of 400 mm (15.75 in), flange width 200 mm (7.87 in). Cross-sectional area: 9,124.248 mm². Moment of inertia Ix = 18,974.418 cm⁴, Iy = 6,517.08 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)	20 mm	0.79 in
Weight	71.6 kg/m	48.12 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,124.25 mm²	14.143 in²
Moment of inertia (Ix)	18,974.42 cm⁴	455.86 in⁴
Moment of inertia (Iy)	6,517.08 cm⁴	156.57 in⁴
Elastic section modulus (Sx)	948.72 cm³	57.895 in³
Elastic section modulus (Sy)	651.71 cm³	39.770 in³
Plastic section modulus (Zx)	1,173.29 cm³	71.599 in³
Plastic section modulus (Zy)	728.06 cm³	44.429 in³
Radius of gyration (rx)	14.42 cm	5.677 in
Radius of gyration (ry)	8.45 cm	3.327 in