Letter 28085

Salt Spray for SS304 bolt  

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I'm looking to use a SS304 bolt on an AC application that will be subject to the outside environment. Will a SS304 bolt pass the 96 hours salt spray test (ASTM B-117 [link is to spec at TechStreet]) before developing red rust?

Jesse R. Comer
air condition appliance - Athens, GA, U.S.A.

Jesse - Contact the manufacturer of the bolt for their testing specifications. For the low cost to have a 96 hour salt spray run (about $100), you could test a few yourself.

Cynthia L. Meade
- Sylvania, OH, USA

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