RHS 300x140x6 SAISC · Weight & Dimensions

SAISC, cold-formed sections · 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 300x140 cal 4 (México) · Caño estructural 300x140 (Argentina)

The RHS 300x140x6 steel profile weighs 39.6 kg/m (26.60 lb/ft), has a depth of 300 mm (11.81 in), flange width 140 mm (5.51 in). Cross-sectional area: 5,043.292 mm². Moment of inertia Ix = 5,814.164 cm⁴, Iy = 1,782.89 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6 mm ≈ 4 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	140 mm	5.51 in
Thickness (t)	6 mm	0.24 in
Fillet radius (r)	12 mm	0.47 in
Weight	39.6 kg/m	26.60 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,043.29 mm²	7.817 in²
Moment of inertia (Ix)	5,814.16 cm⁴	139.69 in⁴
Moment of inertia (Iy)	1,782.89 cm⁴	42.83 in⁴
Elastic section modulus (Sx)	387.61 cm³	23.654 in³
Elastic section modulus (Sy)	254.7 cm³	15.543 in³
Plastic section modulus (Zx)	481.99 cm³	29.413 in³
Plastic section modulus (Zy)	283.97 cm³	17.329 in³
Radius of gyration (rx)	10.74 cm	4.227 in
Radius of gyration (ry)	5.95 cm	2.341 in