RHS 400x300x17.5 Tata Steel Celsius · Weight & Dimensions

Tata Steel Celsius · 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 400x300x17.5 steel profile weighs 180.0 kg/m (120.96 lb/ft), has a depth of 400 mm (15.75 in), flange width 300 mm (11.81 in). Cross-sectional area: 22,749.226 mm². Moment of inertia Ix = 50,598.624 cm⁴, Iy = 32,277.458 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)	17.5 mm	0.69 in
Fillet radius (r)	26.3 mm	1.03 in
Weight	180.0 kg/m	120.96 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	22,749.23 mm²	35.261 in²
Moment of inertia (Ix)	50,598.62 cm⁴	1215.63 in⁴
Moment of inertia (Iy)	32,277.46 cm⁴	775.47 in⁴
Elastic section modulus (Sx)	2,529.93 cm³	154.387 in³
Elastic section modulus (Sy)	2,151.83 cm³	131.313 in³
Plastic section modulus (Zx)	3,070.88 cm³	187.397 in³
Plastic section modulus (Zy)	2,515.29 cm³	153.493 in³
Radius of gyration (rx)	14.91 cm	5.872 in
Radius of gyration (ry)	11.91 cm	4.690 in