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Tolerance On Straightness
Straightness deviation is specified in millimeters and defined as lateral deviation of the edge from a straight line as shown in the graphic.The straightness deviation is stated as edge camber(bow) and measured over a strip length of 1 or 3 meters. Straightness tolerance depends on the strip width and is given as one of five straightness
| Flatness | 0.001” PIW | ||||
| Camber | 0.16”/ 8ft | ||||
| Deviation from straightness | |||||
| Strip width(mm) | Inch | Maximum deviation from straightness | Mm/3m | Inch/10ft | |
| Mm/0.9m | inch/3ft | ||||
| <40 | <1.57 | 0.50 | 0.020 | – | – |
| 40-100 | 1.57-3.94 | 0.35 | 0.014 | – | – |
| >100 | >3.94 | 0.10 | 0.004 | 0.6 | 0.025 |
