Length Tolerances for Extruded Products
|
Circumscrib-ing
circle diameter (CCD) mm |
Allowable deviation from specified length (mm) |
Allowable deviation from specified length percent |
|
Straight length m |
Coiled length m |
|
≤4 |
>4 ≤10 |
>10 ≤15 |
>15 |
≤30 |
>30 ≤75 |
>75 ≤150 |
>150 |
|
|
≤30 |
3 |
6 |
10 |
25 |
5 |
±10 |
±15 |
±20 |
|
>30 |
≤75 |
3 |
6 |
10 |
25 |
- |
- |
- |
- |
|
>75 |
≤200 |
5 |
8 |
11 |
25 |
- |
- |
- |
- |
|
>200 |
|
6 |
10 |
13 |
25 |
- |
- |
- |
- |
all dimesions in millimetres unless specified - tighter tolerances available on request
Twist Tolerance for Extruded Products
|
Circumscribing circle diameter
CCD(mm) |
TOLERANCE
|
|
Alloy and Temper6063-T5 & T526060-T5 & T52
|
All other alloys and tempers
|
|
Maximum allowable angular deviation, Y, degrees (see diagram)
|
|
In any300 mm length
|
In totallength of L metres
|
In any300 mm length
|
In totallength of L metres
|
|
≤40
|
|
0.50
|
0.8 L (3° max.)
|
0.50
|
3.3 L (3° max.)
|
|
>40
|
≤75
|
0.50
|
0.8 L (3° max.)
|
0.50
|
1.7 L (3° max.)
|
|
>75
|
≤175
|
0.25
|
0.8 L (3° max.)
|
0.25
|
0.8 L (3° max.)
|
|
>175
|
≤250
|
0.50
|
1.7 L (5° max.)
|
0.50
|
1.7 L (5° max.)
|
|
>250
|
|
1.00
|
1.7 L (5° max.)
|
1.00
|
3.3 L (7° max.)
|
all dimesions in millimetres unless specified - tighter tolerances available on request