RHS 110x70x3.5 Hiasa · Weight & Dimensions

Hiasa, 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 110x70 cal 11 (México) · Caño estructural 110x70 (Argentina)

The RHS 110x70x3.5 steel profile weighs 9.3 kg/m (6.22 lb/ft), has a depth of 110 mm (4.33 in), flange width 70 mm (2.76 in). Cross-sectional area: 1,179.454 mm². Moment of inertia Ix = 193.423 cm⁴, Iy = 96.076 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3.5 mm ≈ 10 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	110 mm	4.33 in
Width (b)	70 mm	2.76 in
Thickness (t)	3.5 mm	0.14 in
Fillet radius (r)	7 mm	0.28 in
Weight	9.3 kg/m	6.22 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,179.45 mm²	1.828 in²
Moment of inertia (Ix)	193.42 cm⁴	4.65 in⁴
Moment of inertia (Iy)	96.08 cm⁴	2.31 in⁴
Elastic section modulus (Sx)	35.17 cm³	2.146 in³
Elastic section modulus (Sy)	27.45 cm³	1.675 in³
Plastic section modulus (Zx)	42.94 cm³	2.621 in³
Plastic section modulus (Zy)	31.46 cm³	1.920 in³
Radius of gyration (rx)	4.05 cm	1.594 in
Radius of gyration (ry)	2.85 cm	1.124 in