Table II at the back of the standard lists a wide range of stainless steel grades and the recommended passivation type for each. The new vendor may have read the spec more carefully than the old and realized type II is not recommended for the grades this fasteners manufacturer supplies. ...
You can read up on passivation by checking out theFAQ here, and by going to the ASSIST website and getting a copy of QQ-P-35. The times, temperatures, and compositions of the Type 2 and the type 8 baths haven't changed in the iterations that the spec has taken, fromQQ-P-35C[from...
Q.Does the new ASTM A967 spec use the same "types" and "classes" as the QQ-P-35? T. Garber - USA 2000 publicly reply to T. Garber I'm confused with this thread, for to do a passivation treatment on stainless steel, should you use specification # MIL-F-14072-E300 or use AMS Q...
As for the difference between QQ-P-35 and QQ-P-35C, the vendor should use the latest spec revision unless otherwise instructed. If your PO specified passivation per QQ-P-35 type II, use of this obsolete process is acceptable for your application, you have a vendor qualified to perform thi...
finishing process(Passivation) of 316L Stainless Steel part from MIL-S-5002 Type III to QQ-P-35 Type VI. What are the differences between these two specifications. Are these two processes are same, Please confirm. Dattatreya Joshi customer - Bangalore ...