TwinTurbo.NET: Nissan 300ZX forum - Aluminum does not have a fatigue limit like steel does
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Subject Aluminum does not have a fatigue limit like steel does
Posted by BlackholeZ on November 24, 2017 at 9:00 PM
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In Reply To Suspension Components Aluminum T6061 vs Billet 4130 posted by jessethehitman on November 22, 2017 at 03:05 PM
Message Basically with steel there is a point where if the loads it sees are under the limit, it does not cause any fatigue on the part. Aluminum does not have this limit. Granted, you can build an Al arm so beefy that the fatigue life is well outside what anyone could reasonably reach, but I doubt anyone making Al control arms has done that analysis. There's a reason SPL and Powertrix only use steel.


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