1. Dimensional characteristics outside diameters (D)
| Outside Diameters (mm) | Tolerance (mm) |
|---|---|
| ≦ 19 | ± 0,12 |
| ≦ 30 | ± 0,15 |
| ≦ 42,4 | ± 0,20 |
| ≦ 51 | ± 0,25 |
| ≦ 63,5 | ± 0,30 |
| ≦ 76 | ± 0,35 |
| ≦ 90 | ± 0,40 |
| ≦ 101,6 | ± 0,50 |
| ≦ 120 | ± 0,60 |
| ≦ 139,7 | ± 0,80 |
| ≦ 193,7 | ± 1,00 |
2. Thickness (T)
T ≤ 1,5 mm ± 0,15 mm
T > 1,5 mm: 0,1T ou ± 0,35 mm
(the lower)
3. Ovalisation
The ovalisation is included on the tolerances of the outside diameters.
4. Straightness
D > 15 mm, e = 0,002L
L = 1000 mm, e ≤ 3 mm
5. Linear mass (M)
M = 0,785 A (kg/m)
M is the mass per length unity.
A is the transversal section.
6. Exact length (L)
| Lenght (mm) | Tolerance (mm) |
|---|---|
| L ≦ 500 | to be engaged |
| 500 < L ≦ 2000 | +3 0 |
| 2000 < L ≦ 5000 | +5 0 |
| 5000 < L ≦ 8000 | +10 0 |
| L > 8000 | to be engaged |
1. Dimensional characteristics (B, H)
| (B, H) (mm) |
Tolerance (mm) |
|---|---|
| 14×14 | ± 0,20 |
| 15×15 | ± 0,20 |
| 20×20 | ± 0,20 |
| 20×10 | ± 0,20 |
| 20×15 | ± 0,20 |
| 25×25 | ± 0,25 |
| 25×15 | ± 0,25 |
| 30×30 | ± 0,25 |
| 30×15 | ± 0,25 |
| 30×20 | ± 0,25 |
| 35×35 | ± 0,25 |
| 35×25 | ± 0,25 |
| 40×40 | ± 0,30 |
| 40×20 | ± 0,30 |
| 40×30 | ± 0,30 |
| 45×45 | ± 0,30 |
| 50×50 | ± 0,30 |
| 50×25 | ± 0,30 |
| 50×30 | ± 0,30 |
| 60×30 | ± 0,35 |
| 60×40 | ± 0,35 |
2. Thickness (T)
T ≤ 1,5 mm ± 0,15 mm
T > 1,5 mm: 0,1T ou ± 0,35 mm
(the lower)
3. Concavity/convexity
Those tolerances are included on the B and H tolerances.
4. Squareness of the side
Measure of the difference between 90° and θ ≤ 1°.
5. Twist (V)
Maximum (V):
a) 3 mm to B and H ≤ 30 mm
b) B/10 ou ≤ H/10
for B or H > 30 mm
6. External corner profile
| Thickness (mm) |
External corner C1 and C2 |
|---|---|
| T ≦ 2,5 | ≦ 1,5 T |
| 2,5 < T ≦ 4 | ≦ 2,2 T |
7. Straightness
H,B <= 30 mm; e <= 0,0025L H,B > 30 mm; e <= 0,0015L
8. Linear mass
M = 0,785 A (kg/m)
M is the mass per length unity
A is the transversal section
9. Exact length (L)
| Lenght (mm) | Tolerance (mm) |
|---|---|
| L ≦ 500 | To be engaged |
| 500 < L ≦ 5000 | +3 0 |
| 2000 < L ≦ 5000 | +5 0 |
| 5000 < L ≦ 8000 | +10 0 |
| L > 8000 | To be engaged |