RHS 400x200x12.5 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 400x200x12.5 steel profile weighs 108.0 kg/m (72.58 lb/ft), has a depth of 400 mm (15.75 in), flange width 200 mm (7.87 in). Cross-sectional area: 13,704.369 mm². Moment of inertia Ix = 27,100.496 cm⁴, Iy = 9,260.457 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)	12.5 mm	0.49 in
Fillet radius (r)	37.5 mm	1.48 in
Weight	108.0 kg/m	72.58 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	13,704.37 mm²	21.242 in²
Moment of inertia (Ix)	27,100.5 cm⁴	651.09 in⁴
Moment of inertia (Iy)	9,260.46 cm⁴	222.48 in⁴
Elastic section modulus (Sx)	1,355.02 cm³	82.689 in³
Elastic section modulus (Sy)	926.05 cm³	56.511 in³
Plastic section modulus (Zx)	1,713.94 cm³	104.591 in³
Plastic section modulus (Zy)	1,062.25 cm³	64.823 in³
Radius of gyration (rx)	14.06 cm	5.536 in
Radius of gyration (ry)	8.22 cm	3.236 in