Isn't the Solas impeller stainless steel?

[Orangecrush]

So I'm finally sending my impeller back to Riva. It was the 3rd one produced and instead of the the pitch being stamped in the impeller, it was written with a sharpie.

I'm sending it back because with the power filter, stage II tune and impeller, I can't get my 300 over 76mph.

Point is, I had it taken out to send back so they could check it out... (being pre-production, maybe it needs tweaked)

Anyway, I've been to the ocean twice and though all I did was rinse it, if the impeller is stainless steel, shouldn't there be no rust on it?

Thanks,

Mark

[Randy WS6]

I have a Reva Solar -CD SRX 14/19R and on the web site say , Solas Concord Impellers increase low-end thrust and top-end speed. Constructed of high strength stainless steel, Solas Impellers feature a polished hub and exclusive hub-end water seal for reduced cavitation. All "R" model Solas impellers are placed in a pitch-block before leaving Solas to ensure accuracy for optimal performance. So after reading your post i took a magnet and its not a nickel base Stainless Steel . The magnet stuck so hard i could not hardly remove it. I work in a metal fabrication shop and work with stainless steel all the time. And i know there are different grades of stainless and some real low grade S.S. will tend to rust and be some what magnetic . The more nickel & chromium the less magnetic and less corrosive , The impeller that i have is defiantly not high grade or sub grade stainless steel. if stainless at all .

[ABBOTT]

Holy crap..........

[Dockside]

Ok so after seeing this I I took a magnet and turns out the stainless cup for my milk shake maker and half the stuff in my kitchen is better quality stainless then the Solas.

[RiverRat71]

Likely 409, low chromium & nickel content, cheaper to make, up to 90% ferrous material. But it is still considered stainless.

[ABBOTT]

Likely 409, low chromium & nickel content, cheaper to make, up to 90% ferrous material. But it is still considered stainless.

Like sort of being pregnant......
Really disappointing.

[RiverRat71]

Most stainless exhaust systems are 409. Not all bad but will get surface rust. Heavy salt exposure can & will make it look like crap though.

[Randy WS6]

I just dont believe they are stainless, I took a piece of mild steel A36 -1/8" thick about the same thickness as the impeller blade and the magnet stuck just as hard as the S.S. impeller., And also to a piece of 304 stainless steel and the magnet would not stick to it at all ,I know there are some S.S. that are some what magnetic but not like this. I would like to see the breakdown of the alloy they used in the Solas impellers .

[Randy WS6]

I also checked my stock 2012 GTR-215 impeller and its also very magnetic like the Solas. I thought the factory ones was stainless steel also. Must be a new type of stainless steel, lol.... Dont get me wrong ,the Solas is a very well built impeller and very happy with its performance.

[Sanfish]

For the record, my original Solas SRZ 15/19R with 260hrs it looks brand new. Not a hint or spec of rust.

While I ride salt water 99.8% of the time, I always drop my ski in a fresh water lake after every ride to fully flush everything. Never on a hose.