GRP Rods and Tubes
Engineered Composites supplies from stock an extensive range of glass fibre reinforced rods and tubes.
Fibreglass GRP Rods
The fibreglass rods are all smooth external finish and with high glass content uni-directional reinforcement. With tensile strength of steel but only a quarter of the weight, tough, flexible, electrically non-conductive fibreglass rods used in all kinds of industrial, agricultural and hobby applications.
Technical data
The following data is given for guidance in materials selection. Please contact us for more specific design data for individual products.
| Diameter D mm |
Weight gm/m |
Stock length m |
Colour |
| 5 | 40 | 6 | W & B |
| 6 | 50 | 6 | W & B |
| 7 | 70 | 6 | W & B |
| 7.9 | 100 | 6 | W & B |
| 9.5 | 160 | 6 | W |
| 10 | 160 | 5 | W |
| 12.7 | 220 | 6 | W |
| 16 | 400 | 6 | W |
| 32 | 1630 | 6 | W |
GRP Rod Product range
The following GRP rods are carried as stock items for immediate delivery. Other diameters, lengths and colours can be supplied to order with a typical minimum production order of 300m, less for the large diameters.
| Units | Property Data | |
| Tensile strength | MPa | 550 |
| Tensile Modulus | GPa | 30 |
| Density | g/cc | 1.9 |
| Electrical Strength | kV/mm | 10 |
| Thermal conductivity | W/m.K | 0.35 |
| Water absorption | % wt/wt | 0.2% |
W white
B black
G grey
The stock lengths can be cut to length if required
Fibreglass GRP Tubes
GRP tubes are stocked in a number of diameters and wall thickness. They are all made by the pultrusion process so have high glass contents and excellent mechanical properties. All of the tubes have a corrosion/weathering barrier built into the surface to give the maximum long-term performance in the most demanding environments.
GRP Tubes Product range
The following tubes are carried as stock items for immediate delivery. Other diameters, lengths and colours can be supplied to order with a typical minimum production order of 300m. The stock lengths can be cut to length if required.
| Outside Diameter D1 mm |
Inside Diameter D2 mm |
Wall thickness t mm |
Weight gm/m |
Stock length m |
Colour |
| 7.9 | 3.3 | 2.3 | 80 | 6 | B |
| 9.5 | 3 | 3.25 | 100 | 6 | B |
| 12.7 | 4 | 4.35 | 200 | 6 | B |
| 19 | 12.6 | 3.2 | 290 | 6 | W |
| 22 | 17 | 2.5 | 280 | 6 | G |
| 25 | 20 | 2.5 | 330 | 6 | G |
| 25 | 22 | 1.5 | 200 | 4.52 | Y |
| 31 | 25 | 3.0 | 521 | 6 | Y & G |
| 38 | 32 | 3.0 | 620 | 6 | Y & G |
| 48.5* | 35 | 6.75 | 1600 | 5 | R |
| 51.6 | 46.5 | 2.55 | 720 | 6 | G |
* the 48.5x35 tube is the scaffold tube
W white
B black
G grey
Y yellow
Technical data
The following data is given for guidance in materials selection. Please contact us for more specific design data for individual products.
| Property | Units | Property Data |
| Tensile strength | MPa | 170 |
| Tensile Modulus | GPa | 17 |
| Flexural Strength | MPa | 170 |
| Density | g/cc | 1.8 |
| Electrical Strength | kV/mm | 10 |
| Thermal conductivity | W/m.K | 0.35 |
| Water absorption | % wt/wt | 0.2% |