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Difference of chemical composition between new and pre-standard-tolerance

Release time:2008-4-29 8:28:09 Click:1670

Slit Edge(EC)Tolerance for Width
Thickness 600mm<宽度≤1000mm 宽度>1000mm
GB/T 3280-2007 GB/T 3280-1992 GB/T 3280-2007 GB/T 3280-1992
Common Precision Common Precision Common Precision Common Precision
<1.0 +1.50 +6 +2.00 +10
≥1.0 <1.5
≥1.5 <2.5 +2.00 +2.50
≥2.5 <3.5 +3.00 +3.00
≥3.5  ≤8.0 +4.00 +4.00
 
Tolerance of Length(Cut inin Sheets or Slit into Strips)
Length 2007 Common Precision 1992 Common Precision 2007 High Precision 1992 High Precision
≤2000mm +5 +10 +3 +10
>2000mm +0.0025*Length +15 +0.0015*Length +15
Thickness Tolerance     Unit:mm  
Thickness Width≤1000 1000<Width≤1300
Common Precision High Precision Common Precision High Precision
2007 Edition 1992 Edition 2007 Edition 1992 Edition 2007 1992 2007 1992
0.5 ±0.045 ±0.05 ±0.03 ±0.04 ±0.05 ±0.05 ±0.03 ±0.04
1.0 ±0.06 ±0.09 ±0.045 ±0.07 ±0.07 ±0.09 ±0.05 ±0.07
1.2 ±0.07 ±0.10 ±0.05 ±0.9 ±0.08 ±0.10 ±0.055 ±0.09
1.5 ±0.08 ±0.12 ±0.055 ±0.11 ±0.09 ±0.12 ±0.06 ±0.11
2.0 ±0.09 ±0.15   ±0.13 ±0.10 ±0.15   ±0.13
 
Flatness
Length 2007 Common Precision 1992 Common Precision 2007 High Precision 1992 High Precision
≤3000mm ≤10mm ≤10mm/m ≤7mm ≤10mm/m
>3000mm ≤12mm ≤10mm/m ≤8mm ≤10mm/m

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