RHS 76x38x4 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 8 (México) · Caño estructural 76x38 (Argentina)

The RHS 76x38x4 steel profile weighs 6.3 kg/m (4.25 lb/ft), has a depth of 76 mm (2.99 in), flange width 38 mm (1.50 in). Cross-sectional area: 806.796 mm². Moment of inertia Ix = 54.69 cm⁴, Iy = 18.086 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4 mm ≈ 8 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	76 mm	2.99 in
Width (b)	38 mm	1.50 in
Thickness (t)	4 mm	0.16 in
Fillet radius (r)	8 mm	0.31 in
Weight	6.3 kg/m	4.25 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	806.8 mm²	1.251 in²
Moment of inertia (Ix)	54.69 cm⁴	1.31 in⁴
Moment of inertia (Iy)	18.09 cm⁴	0.43 in⁴
Elastic section modulus (Sx)	14.39 cm³	0.878 in³
Elastic section modulus (Sy)	9.52 cm³	0.581 in³
Plastic section modulus (Zx)	18.66 cm³	1.139 in³
Plastic section modulus (Zy)	11.38 cm³	0.695 in³
Radius of gyration (rx)	2.6 cm	1.025 in
Radius of gyration (ry)	1.5 cm	0.589 in