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topic 7877

NAVSEA Corrosion Requirements


(2001)

We have a couple products, one housed in Iridited aluminum and the other in zinc plated carbon steel. Both housings are machined from a block of metal and treated afterwards. The Navy is interested in them, however, they want to know if they can meet NAVSEA requirements. In particular, can they withstand 48 hours at 35 °C in an atmosphere of:

5% salt
1% sulfur compounds
10ppm nitrogen oxides
220 micrograms/cubic meter ozone with no corrosion.

If not, can you suggest another treatment, either in-place-of or in-addition-to, that would ensure that we can pass that test. I have found positive data for the salt fog, but not for the other three.

P.S. Zinc plating was a Type II SC2.

Richard Van Dyk
Engineering Technology, Inc - Orlando, Florida, USA



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