plating, anodizing, & finishing Q&As since 1989
Does DS9 passivation fall under ASTM A 380?
My vendor suggests a DS9 passivation for 17-4 SS H900. This is a medical product and we have typically used a passivate to ASTM A380 [affil link] call-out on the print. Does this DS9 passivation process satisfy this requirement?Susan Anapol
Although I also see ASTM A380 [affil link]
called out on prints, it is not a passivation specification but a recommended practice for cleaning of stainless steel alloys.
Likewise DS9 is neither but rather...'DS9' process of Diversey Ltd., Northampton, UK, is described for chemical brightening of stainless steel and Ni alloys, e.g., Hastelloy, Inconel, Kovar and Monel. Applications include food processing and medical equipment as well as aerospace components.
metal finishing - San Jose, California
I contacted Henkel Corp. yesterday seeking information on Diversey Wyandotte DS-9-333. They said it was a special chemistry and is no longer in production. This was a great product. Parts would look like chrome with minimal material loss. Does anyone know of an equivalent product?Rick Wright
There is a company in Minnesota called MPI that uses the DS-9-333 on on stainless steel battery cases that our company produces for the medical industry.
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