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What does E-300 mean in the passivation process?

2003

I have a customer who wants his stainless steel parts finished and to Passivate MIL-DTL-14072 [on DLA] -E300. But the customer is under the impression that a E-300 spec. identifies the surface finish, and the previous parts that were purchased had a surface finish of #32 in them, but the drawing clearly does not specify this. What is the E-300 referring to?

Thanks,

Bruce Santourian
Owner/Manufacturing Co. - Oceanside, California, USA

E300 IS THE CODE FINISH UNDER MIL-F-14072. WHEN YOU LOOK FURTHER IT GOES TO PASSIVATE PER ASTM ASTM A380 . NONE OF THESE CODES HAS ANYTHING TO DO WITH A 32 FINISH.

GERALD A. PAGLIA
PLATING AND METAL FINISHING - BILLERICA, Massachusetts
2003

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