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 You are at : The Companies : JSW Steel Ltd. : Products : Cold Rolled Product
 
 
CRCA (COIL FORM)
     
 
A.  Thickness Tolerances (Re < 260N/mm 2 )
Nominal thickness, mm Nominal width (mm)
≤1200 >1200, ≤1500 >1500
0.3 – 0.4 ±0.015 +/-0.02 +/-0.25
0.41 – 0.60 ±0.02 +/-0.025 +/-0.03
0.61 – 0.80 ±0.025 +/-0.03 +/-0.035
0.81 – 1.00 ±0.03 +/-0.035 +/-0.04
1.01 – 1.25 ±0.035 +/-0.04 +/-0.045
1.26 – 1.60 ±0.04 +/-0.045 +/-0.05
1.61 – 2.00 ±0.06 +/-0.065 +/-0.07
2.01 – 2.50 ±0.07 +/-0.075 +/-0.08
2.51 – 3.00 ±0.08 +/-0.085 +/-0.09
CR COIL & SHEET
     
 
B. Thickness Tolerances (260N/mm2 ≤ Re< 340N/mm2)
Nominal thickness, mm Nominal width (mm)
≤1200 >1200, ≤1500 >1500
0.3 – 0.4 +/-0.02 ±0.025 ±0.03
0.41 – 0.60 +/-0.025 ±0.03 ±0.035
0.61 – 0.80 +/-0.03 ±0.035 ±0.04
0.81 – 1.00 +/-0.035 ±0.04 0.045
1.01 – 1.25 +/-0.04 ±0.045 ±0.05
1.26 – 1.60 +/-0.045 ±0.05 ±0.055
1.61 – 2.00 +/-0.065 ±0.07 ±0.075
2.01 – 2.50 +/-0.075 ±0.08 ±0.085
2.51 – 3.00 +/-0.085 ±0.09 ±0.095
 
     
 
C. Thickness Tolerances (340N/mm2≤ Re≤ 420N/mm2)
Nominal thickness, mm Nominal width (mm)
≤1200 >1200, ≤1500 >1500
0.3 – 0.4 ±0.025 ±0.03 ±0.035
0.41 – 0.60 ±0.03 ±0.035 ±0.04
0.61 – 0.80 ±0.035 ±0.04 ±0.045
0.81 – 1.00 ±0.04 ±0.045 ±0.05
1.01 – 1.25 ±0.045 ±0.05 ±0.055
1.26 – 1.60 ±0.05 ±0.055 ±0.06
1.61 – 2.00 ±0.07 ±0.075 ±0.08
2.01 – 2.50 ±0.08 ±0.085 ±0.09
2.51 – 3.00 ±0.09 ±0.095 ±1
 
     
 
D. Thickness Tolerances (Re> 420N/mm2 )
Nominal thickness, mm Nominal width (mm)
≤1200 >1200, ≤1500 >1500
0.3 – 0.4 ± 0.03 ±0.035 ±0.04
0.41 – 0.60 ±0.035 ±0.04 ±0.045
0.61 – 0.80 ±0.04 ±0.045 ±0.05
0.81 – 1.00 ±0.045 ±0.05 ±0.055
1.01 – 1.25 ±0.05 ±0.055 ±0.06
1.26 – 1.60 ±0.055 ±0.06 ±0.065
1.61 – 2.00 ±0.075 ±0.08 ±0.085
2.01 – 2.50 ±0.085 ±0.09 ±0.095
2.51 – 3.00 ±0.095 ±1 ±1.05
 
     
 
  Width Tolerance
Width of sheets, mm Tolerance, mm
As rolled Trimmed edge
Normal Tolerance Special Tolerance
(+) (-) (+) (-) (+) (-)
800 ≤, ≥ 1200 20 0 3 0 1 0
1200≤, ≥ 1500 20 0 4 0 1 0
1500 < 20 0 5 0 2 0
 
     
     
 
Flatness Tolerance ( Re < 260 N/mm 2 )
Tolerance Class Nominal Width Nominal Thickness
0.7 > t 0.7 ≤ t < 1.2 t ≥ 1.2
  800 - 1200 5 4 4
Normal 1200 - 1500 6 5 4
  1500 - 1650 8 7 6
  800 - 1200 3 2 1.5
Special (FS) 1200 - 1500 4 3 2
  1500 - 1650 4 3.5 3
 
     
 
   
Note:
   
1. W < 1500, Height of edge wave of the length over 200 mm must be less than 1 % of its length.
   
2. W > 1500, Height of edge wave of the length over 200 mm must be less than 1.5 % of its length. For edge waves of length less than 200 mm, the maximum height must not exceed 2 mm.
   
3. For Re > 260 N/mm2, only Normal tolerances are applicable.
   
     
     
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