RHS 300x100x6.3 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 300x100 cal 4 (México) · Caño estructural 300x100 (Argentina)

The RHS 300x100x6.3 steel profile weighs 38.0 kg/m (25.54 lb/ft), has a depth of 300 mm (11.81 in), flange width 100 mm (3.94 in). Cross-sectional area: 4,813.1 mm². Moment of inertia Ix = 5,059.913 cm⁴, Iy = 885.002 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.3 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	100 mm	3.94 in
Thickness (t)	6.3 mm	0.25 in
Fillet radius (r)	9.4 mm	0.37 in
Weight	38.0 kg/m	25.54 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,813.1 mm²	7.460 in²
Moment of inertia (Ix)	5,059.91 cm⁴	121.56 in⁴
Moment of inertia (Iy)	885 cm⁴	21.26 in⁴
Elastic section modulus (Sx)	337.33 cm³	20.585 in³
Elastic section modulus (Sy)	177 cm³	10.801 in³
Plastic section modulus (Zx)	435.1 cm³	26.551 in³
Plastic section modulus (Zy)	197.85 cm³	12.074 in³
Radius of gyration (rx)	10.25 cm	4.037 in
Radius of gyration (ry)	4.29 cm	1.688 in