RHS 160x80x6 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 160x80 cal 4 (México) · Caño estructural 160x80 (Argentina)

The RHS 160x80x6 steel profile weighs 20.8 kg/m (13.94 lb/ft), has a depth of 160 mm (6.30 in), flange width 80 mm (3.15 in). Cross-sectional area: 2,643.292 mm². Moment of inertia Ix = 836.009 cm⁴, Iy = 280.889 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	160 mm	6.30 in
Width (b)	80 mm	3.15 in
Thickness (t)	6 mm	0.24 in
Fillet radius (r)	12 mm	0.47 in
Weight	20.8 kg/m	13.94 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,643.29 mm²	4.097 in²
Moment of inertia (Ix)	836.01 cm⁴	20.09 in⁴
Moment of inertia (Iy)	280.89 cm⁴	6.75 in⁴
Elastic section modulus (Sx)	104.5 cm³	6.377 in³
Elastic section modulus (Sy)	70.22 cm³	4.285 in³
Plastic section modulus (Zx)	132.32 cm³	8.075 in³
Plastic section modulus (Zy)	81.31 cm³	4.962 in³
Radius of gyration (rx)	5.62 cm	2.214 in
Radius of gyration (ry)	3.26 cm	1.283 in