The unflatness across the strip (also called cross camber and cross bow) is expressed as a percentage of the strip width. The unflatness along the strip, sometimes called coil-set, is also expressed as a percentage. Unless otherwise agreed upon the measuring length = the strip width for flatness measurements along and across the strip. Influence of possible residual stresses from slitting shall be excluded.
|Tolerance||Maximum permitted deviation class(% of nominal strip width)|
|P5||As per customer`s special requirement|
|Tolerance class||Strip Width|
|8 - (20) mm||20 - (50) mm||50 - (125) mm||125mm~|
|Maximum allowed straightness deviation (mm)|
|R5||As per customer`s special requirement|
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