RHS 76x38x3.5 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 76x38 cal 11 (México) · Caño estructural 76x38 (Argentina)

The RHS 76x38x3.5 steel profile weighs 5.6 kg/m (3.78 lb/ft), has a depth of 76 mm (2.99 in), flange width 38 mm (1.50 in). Cross-sectional area: 717.454 mm². Moment of inertia Ix = 49.749 cm⁴, Iy = 16.565 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	76 mm	2.99 in
Width (b)	38 mm	1.50 in
Thickness (t)	3.5 mm	0.14 in
Fillet radius (r)	7 mm	0.28 in
Weight	5.6 kg/m	3.78 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	717.45 mm²	1.112 in²
Moment of inertia (Ix)	49.75 cm⁴	1.20 in⁴
Moment of inertia (Iy)	16.56 cm⁴	0.40 in⁴
Elastic section modulus (Sx)	13.09 cm³	0.799 in³
Elastic section modulus (Sy)	8.72 cm³	0.532 in³
Plastic section modulus (Zx)	16.8 cm³	1.025 in³
Plastic section modulus (Zy)	10.28 cm³	0.627 in³
Radius of gyration (rx)	2.63 cm	1.037 in
Radius of gyration (ry)	1.52 cm	0.598 in