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brass as a sealing surface?

brass as a sealing surface?

brass as a sealing surface?

(OP)
One of our sister companies is experimenting with using red brass (not sure of the exact grade) as a primary static sealing surface for a product continuously submersed in sea water (100-200 ft depth typical).  From past lives I recall a patina developing in a short period on other products in these environments that make me question the integrity of the proposed seal but I have no direct experience with this exact combination.  Any experience to pass along would be helpful.

thanks

RE: brass as a sealing surface?

Red brass will not be long term stable in seawater.  At least not without significant cathodic protection.  You would need 70/30 CuNi to have long term corrosion resistance in seawater.

= = = = = = = = = = = = = = = = = = = =
Still trying to help you stop corrosion.
formerly Trent Tube, now Plymouth Tube
eblessman@plymouth.com
or edstainless@earthlink.net

RE: brass as a sealing surface?

(OP)
thanks for the help

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