RHS 127x76.2x4.78 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 127x76.2 cal 6 (México) · Caño estructural 127x76.2 (Argentina)
The RHS 127x76.2x4.78 steel profile weighs 14.1 kg/m (9.46 lb/ft), has a depth of 127 mm (5.00 in), flange width 76.2 mm (3.00 in). Cross-sectional area: 1,792.359 mm². Moment of inertia Ix = 378.175 cm⁴, Iy = 170.502 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 4.78 mm ≈ 7 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 127 mm | 5.00 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 | 14.1 kg/m | 9.46 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,792.36 mm² | 2.778 in² |
| Moment of inertia (Ix) | 378.17 cm⁴ | 9.09 in⁴ |
| Moment of inertia (Iy) | 170.5 cm⁴ | 4.10 in⁴ |
| Elastic section modulus (Sx) | 59.56 cm³ | 3.634 in³ |
| Elastic section modulus (Sy) | 44.75 cm³ | 2.731 in³ |
| Plastic section modulus (Zx) | 73.8 cm³ | 4.503 in³ |
| Plastic section modulus (Zy) | 51.78 cm³ | 3.160 in³ |
| Radius of gyration (rx) | 4.59 cm | 1.808 in |
| Radius of gyration (ry) | 3.08 cm | 1.214 in |
Beam Calculator— RHS 127x76.2x4.78
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — RHS 127x76.2x4.78
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
22.31 mm
L/269
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
