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Dimensional Tolerance

The various dimensional tolerances of the products we manufacture are as follows. If you require stricter tolerances, please tell us at the time of quotation.

Thickness Tolerance

The thickness tolerances are shown in the table below.

Please scroll horizontally to view.

Unit[mm]

  Thickness Tolerance
Grade C B A S SS

Width

Thick
ness

250 - 320 Under 250 Negotiable※1
0.010 - 0.019 - ±0.003 ±0.002 ±0.002 ±0.001
0.020 - 0.029 - ±0.003 ±0.002 ±0.002 ±0.001
0.030 - 0.039 ±0.004 ±0.004 ±0.003 ±0.002 ±0.001
0.040 - 0.049 ±0.004 ±0.004 ±0.003 ±0.002 ±0.001
0.050 - 0.059 ±0.005 ±0.004 ±0.003 ±0.003 ±0.001
0.060 - 0.069 ±0.005 ±0.004 ±0.003 ±0.003 ±0.002
0.070 - 0.079 ±0.006 ±0.005 ±0.004 ±0.003 ±0.002
0.080 - 0.099 ±0.007 ±0.006 ±0.004 ±0.003 ±0.002
0.100 - 0.129 ±0.009 ±0.007 ±0.005 ±0.004 ±0.002
0.130 - 0.149 ±0.010 ±0.008 ±0.005 ±0.004 ±0.002
0.150 - 0.199 ±0.011 ±0.009 ±0.007 ±0.004 ±0.002
0.200 - 0.249 ±0.013 ±0.010 ±0.008 ±0.005 ±0.002
0.250 - 0.299 ±0.015 ±0.011 ±0.008 ±0.005 ±0.003
0.300 - 0.349 ±0.016 ±0.012 ±0.009 ±0.007 ±0.004
0.350 - 0.399 ±0.018 ±0.012 ±0.009 ±0.007 ±0.004
0.400 - 0.499 ±0.020 ±0.015 ±0.011 ±0.008 ±0.005
0.500 - 0.599 ±0.022 ±0.018 ±0.013 ±0.009 ±0.005
0.600 - 0.699 ±0.024 ±0.020 ±0.015 ±0.010 ±0.005
0.700 - 0.799 ±0.026 ±0.022 ±0.017 ±0.011 ±0.005
0.800 - 0.899 ±0.028 ±0.024 ±0.018 ±0.012 ±0.005
0.900 - 0.999 ±0.032 ±0.027 ±0.020 ±0.013 ±0.006
1.000 - 1.199 ±0.035 ±0.030 ±0.022 ±0.015 ±0.008
1.200 - 1.399 ±0.040 ±0.035 ±0.025 ±0.016 ±0.008
1.400 -1.599 ±0.045 ±0.040 ±0.030 ±0.023 ±0.016
1.600 - 1.999 ±0.050 ±0.045 ±0.035 ±0.025 ±0.020

※1:SS tolerance is depending on product width, steel grade, finish, etc.

 

【Note】

  1. The measurement position for thickness will be any point at least 10mm away from both edges. For products with a width of 20mm or less, measurement will be taken at the center of the width.
  2. If you require products with tolerances biased in one direction (unilateral tolerance) relative to the nominal dimensions, please set them to maintain the allowable range of the sum of the above ± (range).
  3. If you require products with a thickness of 2.00mm or more and special tolerances, please contact us separately for further consultation.

Width Tolerance

Our width tolerances are shown in the table below. If you require particularly precise width tolerances, please contact us.

Please scroll horizontally to view.

Unit[mm]

Width


Thickness

Width Tolerance
Under 80 80 - 200 200 - 250 Over 250
 - 0.599 ±0.10  ±0.15  ±0.20  ±0.25 
0.600 - 0.999 ±0.15  ±0.20  ±0.25  ±0.25 
1.000 - 1.599 ±0.20  ±0.20  ±0.30  ±0.30 
1.600 - 1.999 ±0.25  ±0.25  ±0.35  ±0.35 

Length Tolerance

We apply the following tolerances to the length of flat-cut products. If you require stricter tolerances, please consult with us separately.

Please scroll horizontally to view.

Unit[mm]

Length


Thickness/Width

Length Tolerance
Below 2000 Over 2000
Total Thickness and Width +5, -0 +10, -0

Camber Tolerance

Camber Tolerance is as shown in the table below.For soft materials or products with a width of less than 10mm, please consult with us separately.

Please scroll horizontally to view.

Unit[mm/1M]

Thick
ness

Width

Camber Tolerance
Over 0.30 Below 0.30
- 9.99 please consult with us separately
10.00 - 14.99 5mm max 4mm max
15.00 - 19.99 4mm max 3mm max
20.00 - 29.99 3mm max
30.00 - 49.99 2mm max
50.00 1mm max

Camber Measurement Method


The measurement method for camber is as shown in the diagram below, and our standard measurement length is 1 meter.


Camber Conversion Method

When bending with the same curvature radius, there is the following relationship between the measurement length and camber.

  横曲がりと測定長さの関係式

  R:Curvature Radius
  C:Camber
  L:Measurement Length

The following formula can be used to obtain the converted camber value when the measurement length is changed.
  横曲がり換算式

  L0:Measurement Length
  C0:Camber
  L1:Converted measurement length
  C1:Converted camber

[Example] If the camber is 3mm for every 1 meter in length, what would be the camber for a length of 2 meters?
  横曲がり換算式(例)

  ∴The answer would be 12mm.

Related Pages

High precision thickness product

Slitting processing
(Manufacture by commissioning)

We welcome your questions and inquiries regarding materials.