RHS 160x90x4.8 Açotubo · Weight & Dimensions

Açotubo, 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 160x90 cal 6 (México) · Caño estructural 160x90 (Argentina)

The RHS 160x90x4.8 steel profile weighs 17.6 kg/m (11.86 lb/ft), has a depth of 160 mm (6.30 in), flange width 90 mm (3.54 in). Cross-sectional area: 2,248.507 mm². Moment of inertia Ix = 755.502 cm⁴, Iy = 309.094 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.8 mm ≈ 7 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	160 mm	6.30 in
Width (b)	90 mm	3.54 in
Thickness (t)	4.8 mm	0.19 in
Fillet radius (r)	9.6 mm	0.38 in
Weight	17.6 kg/m	11.86 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,248.51 mm²	3.485 in²
Moment of inertia (Ix)	755.5 cm⁴	18.15 in⁴
Moment of inertia (Iy)	309.09 cm⁴	7.43 in⁴
Elastic section modulus (Sx)	94.44 cm³	5.763 in³
Elastic section modulus (Sy)	68.69 cm³	4.192 in³
Plastic section modulus (Zx)	116.64 cm³	7.118 in³
Plastic section modulus (Zy)	78.33 cm³	4.780 in³
Radius of gyration (rx)	5.8 cm	2.282 in
Radius of gyration (ry)	3.71 cm	1.460 in