Dimensional tolerances

Thickness tolerances

Reference UNI EN 10051and UNI EN 10043 for thicknesses < 2 mm
Nominal thickness (mm)Thickness toleranceCross-section (crown)
To standard UNI EN 10051/EN 10143 (1)Close on coil W 1250Close on coil W 1500To standard UNI EN 10051 at 40 mm from edges (coils)Checked at 25 mm from edges (strips)
0,80 - 1,20± 0,08± 0,06± 0,040,130,04
1,21 - 1,60± 0,11± 0,06± 0,040,130,04
1,61 - 2,00± 0,13± 0,07± 0,050,130,05
2,01 - 2,50± 0,14± 0,08± 0,060,130,05
2,51 - 3,00± 0,15± 0,10± 0,060,130,06
3,01 - 4,00± 0,17± 0,12± 0,120,130,06
4,01 - 5,00± 0,18± 0,12± 0,120,130,07
5,01 - 6,00± 0,20± 0,13± 0,130,130,07
6,01 - 8,00± 0,22± 0,15± 0,150,130,08
8,01 - 10,00± 0,24± 0,20± 0,200,130,08
10,01 - 12,00± 0,24± 0,20± 0,200,130,10

 

Note:
(*) the figures do not apply to the coil ends for length L(m)=90/nominal thickness (mm)
Asymmetrical tolerances are also accepted, provided the total excursion is less than the figures of this table.

Width tolerances

Black, pickled and galvanized coils with mill edges (ref. UNI EN 10051)
Nominal width (mm)Tolleranza (mm)
L ≤ 1200-0 / +20
1200 < L ≤ 1600-0 / +20
Black and pickled strips/blanks with trimmed edges  
Width < 600 mm
Nominal width (mm)Width tolerance (mm)
sp ≤ 3,0mm3,00 < sp ≤ 7,0mmsp > 7,0mm
L ≤ 100-0 / +0,3-0 / +0,4-0 / +0,5
100 < L ≤ 250-0 / +0,4-0 / +0,5-0 / +0,6
250 < L ≤ 400-0 / +0,5-0 / +0,6-0 / +0,7
400 < L < 600-0 / +0,6-0 / +0,7-0 / +0,8


Note: these are the minimum tolerances feasible; in the absence of prescriptions in the order, by default standard tolerances are inserted into the system. Other tolerances are also accepted, all negative or overlapping, provided the total excursion is not below the figures in this table.

Black and pickled strips/blanks with trimmed edges  
Width ≥ 600 mm
Nominal width (mm)Tolerance (mm) for th. ≤ 2 mmTolerance (mm) for th. > 2 mm
600 ≤ L ≤ 1200-0 / +2-0 / +3
1200 < L ≤ 1600-0 / +3-0 / +4


Note: these are the minimum tolerances feasible; in the absence of prescriptions in the order, by default standard tolerances are inserted into the system. Other tolerances are also accepted, all negative or overlapping, provided the total excursion is not below the figures in this table