RHS 101.6x76.2x4.78 CISC · Weight & Dimensions
CISC, 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 101.6x76.2 cal 6 (México) · Caño estructural 101.6x76.2 (Argentina)
The RHS 101.6x76.2x4.78 steel profile weighs 12.2 kg/m (8.17 lb/ft), has a depth of 101.6 mm (4.00 in), flange width 76.2 mm (3.00 in). Cross-sectional area: 1,549.535 mm². Moment of inertia Ix = 218.335 cm⁴, Iy = 139.491 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 4.78 mm ≈ 7 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 101.6 mm | 4.00 in |
| Width (b) | 76.2 mm | 3.00 in |
| Thickness (t) | 4.8 mm | 0.19 in |
| Fillet radius (r) | 9.6 mm | 0.38 in |
| Weight | 12.2 kg/m | 8.17 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,549.53 mm² | 2.402 in² |
| Moment of inertia (Ix) | 218.33 cm⁴ | 5.25 in⁴ |
| Moment of inertia (Iy) | 139.49 cm⁴ | 3.35 in⁴ |
| Elastic section modulus (Sx) | 42.98 cm³ | 2.623 in³ |
| Elastic section modulus (Sy) | 36.61 cm³ | 2.234 in³ |
| Plastic section modulus (Zx) | 52.58 cm³ | 3.208 in³ |
| Plastic section modulus (Zy) | 43.11 cm³ | 2.631 in³ |
| Radius of gyration (rx) | 3.75 cm | 1.478 in |
| Radius of gyration (ry) | 3 cm | 1.181 in |
Beam Calculator— RHS 101.6x76.2x4.78
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — RHS 101.6x76.2x4.78
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
38.64 mm
L/155
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
