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        Allowable width deviation of steel plates

        Table5-13 Cold rolled steel and steel strip

        Nominal width/mm

        Width deviation/mm

        ≤l000

        +6

        >1000

        +10

        Steel tape without longitudinal edges

        +15


        Table5_14 Allowable deviation of longitudinal strip width

        Nominal thickness/mm

        Width deviation/mm

        ≤125

        >125~250

        >250~400

        >400~<600

        0.20~0.40

        +0.3

        +0.6

        +1.0

        +1.5

        >0.40~1.0

        +0.5

        +0.8

        +1.2

        +1.5

        >1.0~1.8

        +0.7

        +1.0

        +1.5

        +2.0

        >1.8~3.0

        +1.0

        +1.3

        +1.7

        +2.0


        Table5-15 Length of the cold rolled sheet allows the deviation

        Nominal length/mm

        ≤2000

        >2000

        Deviation/mm

        +10

        +15


        Table5-16 Shape of cold rolled steel and steel strip

        Flatness of the steel sheet and the strip

        Bending of steel belt

        Same plate difference of the plate

        Nominal width/mm

        Flatness(mm/m)

        ≤0.70

        >0.70~1.50

        >1.50~5.0

        ≤1000

        10

        8

        6

        <6mm in each 2m, but each longitudinal strip camber2m within <4mm

        Not be more than half the thickness tolerance

        >1000~1500

        12

        10

        8

        >1500~2000

        18

        15

        12


        The flatness listed in the table is applicable for steel plates and steel strips with the ób lower limit of no more than 485MPa. The maximum flatness of steel plates and steel strips with the ób lower limit of 485NPa-585MPa is allowed to be 30% higher than the specified values in the table. The maximum flatness of steel plates and steel strips with the ób lower limit of more than 585MPa is allowed to be 50% higher than the specified values in the table.

        Applications:Cold-rolled plate strips have wide applications such as automobile manufacturing, electrical products, motor vehicles, aviation, precision meters, canned foods, etc.