Tolerance Capabilities
  

 

 

 

 

 

 

 

 

 

 

 

 
 

Typical linear tolerances in investment castings produced by our company are according to ASM standards. The following table shows the linear tolerances we usually agree upon with our customers:

Dimension
Normal Tolerance
mm
inch
mm
inch
Up to 13
Up to 0.5
(+/-)0.13
(+/-)0.005
Up to 25
Up to 1
(+/-)0.25
(+/-)0.010
Up to 50
Up to 2
(+/-)0.33
(+/-)0.013
Up to 75
Up to 3
(+/-)0.41
(+/-)0.016
Up to 102
Up to 4
(+/-)0.48
(+/-)0.019
Up to 127
Up to 5
(+/-)0.56
(+/-)0.022
Up to 152
Up to 6
(+/-)0.63
(+/-)0.025
Up to 178
Up to 7
(+/-)0.71
(+/-)0.028
Maximum
Variation
Maximum
Variation
(+/-)1.02
(+/-)0.04

For Foam-Casting the linear tolerance of parts produced are according to DIN 7168G, with following table:

Tolerance

0.5-3

3-6

6-30

60-120

120-400

400-1000

g

+ 0.15

+ 0.2

+ 0.5

+ 0.8

+ 0.2

+ 0.2

 
Main Office: No. 11, Reslat Blvd., Noor Sq, Ayatollah Kashani Blvd,Sadeghieh, Tehran, Iran
Tel : (021) 44071235 – 44097077-8 Fax : (021)44071245
Email: puladir@puladir.com