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Parameter

Cast iron material specification parameter table
 
Table 1 Section size tolerance, deflection and machining allowance to defects

Shape

 Size(mm)

 Section of tolerance(mm)

 

 Deflection(mm)

 

  Machining allowance to defects(mm)

Gray iron bars.FC 

Ball iron bars.FCD 

  Gray iron bars.FC

 Ball iron bars.FCD

 Gray iron bars.FC

Ball iron bars.FCD 

Circular

Φ25-Φ45

0-+1.0 

0-+1.5 

 ≤4.0

 ≤5.0

≤1.0 

 ≤1.0

Φ50-Φ65
Φ70-Φ100

0-+1.5
0-+2.0

0-+1.5
0-+2.0

≤3.0
≤2.0

≤4.0
≤3.0

≤1.5
≤2.0

≤1.5
≤2.0

Φ105-Φ150

-0.-+3.0

-0.-+4.0

≤2.0

≤2.5

≤2.5

≤2.5

Rectangle

Thickness 25-45

0-+1.5

0-+2.0

≤5.0

≤5.5

≤2.0

≤2.0

Thickness 50-100

0-+2.5

0-+2.5

≤4.0

≤4.5

≤2.5

≤2.5

Thickness 100-120

0-+3.0

0-+3.0

≤3.0

≤3.5

≤3.0

≤3.0

Semicircle

Absolute height40-55

0-+2.0

0-+2.0

≤4.0

≤4.5

 ≤2.0

 ≤2.0

 Absolute height60-150

 0-+3.0

 0-+3.0

 ≤3.0

 ≤3.5

 ≤2.5

 ≤3.0

 
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