en
Deutsch
French
Italian
Spanish
Polish
Danish
Swedish
Norwegian
Portuguese
Finnish
Dutch
Czech
Dimensional tolerances of GRP profiles
The following dimensional tolerances for profiles with regard to nominal values, diameters, wall thicknesses, flatness, straightness, longitudinal twist, size of angles, cutting length and cutting angle,
wall thicknesses, flatness, straightness, longitudinal torsion, size of angles, cutting length and cutting angle.
Nominal values (mm)
- B and H: ± 0.5 % with a minimum of ± 0.20 mm
- B and H: ± 0.5 % with a maximum of ± 0.75 mm
Diameter of solid rods and tubes
| D, d (mm) | D | d |
|---|---|---|
| 0 - 10 | ± 0,20 | ± 0,20 |
| 10 - 20 | ± 0,30 | ± 0,30 |
| 20 - 50 | ± 0,35 | ± 0,35 |
| 50 - 100 | ± 0,40 | ± 0,40 |
| 100 - | ± 0,45 | ± 0,45 |
Wall thicknesses of open and closed profiles
Nominal values (mm)
| Wall thickness | T1 | T2 |
|---|---|---|
| 0 - 2 | ± 0,15 | ± 0,30 |
| 2 - 5 | ± 0,20 | ± 0,35 |
| 5 - 10 | ± 0,35 | ± 0,45 |
| 10 - | ± 0,45 | ± 0,50 |
Flatness in transverse direction
Tolerance
F < 0.008 X B mm
Size of the angle
Tolerance
Y ± 1,5°
Straightness
Tolerance (B and H are the total width and height)
- D < 0.002 x L2 for sections with B or B or H < 50 mm
- D < 0.001 x L2 for sections with B or B or H ≥ 50 mm and < 100 mm
- D < 0.0005 x L2for sections with B or B or H ≥ 100 mm
Longitudinal torsion
Tolerance
- V < 1.5° per metre maximum for wall thicknesses < 5 mm
- V < 1.0° per metre maximum for wall thicknesses ≥ 5 mm
Cutting length
L + 20 / – 0 mm
Cutting angle
V ± 1,5°