We have been manufacturing cast steel abrasives for many years. As a manufacture of those abrasives we have been producing cast steel grit that conforms to many industry standards, including the SAE J-444 grit specification. The proper interpretation of the grit sieve specification is min, min.
Please don’t take my word for this; review the following industry standards. Although they differ in the description of the specification, they all state the following: All pass and some 1% max on the top sieve. The second specification sieve %min and the third specification sieve %min.
MIL-S-851D -- Military Air Force
SFSA 20-66 – Steel Foundries Society of America
SSPC – AB3 -- Society of Protective Coatings
ISO 11124-3 -- International Organization for Standardization
During the next Surface Enhancement meeting I will be proposing that we add the term (min) in Table 2 of SAE J-444 as intended and to bring it in line with the other industry standards for Cast Steel Grit Abrasive.
If anyone has any questions or concerns please feel free to contact me at
[email protected]Regards
Dennis Scharer
Ervin Industries
Technical Services Manager
