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Spring steel clutch plates

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Is there any advantage when making the pressure plates (metal ones) fron spring steel ? I guy I know does CNC work and he says it's a big improvement but I'm not so sure ? He can make me a set for real cheap but I'm still not sure if it's worth it. Anyone have any experience spring steel :cry:

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As a metallurgist, my opinion is there would be no advantage to spring steel.

(Spring steel being steel with enough carbon to harden by heat treat or cold work to 200,000 psi tensile or there about)

Clutches use aluminum, soft steel, & brass with various friction materials and also metal to metal (sometimes steel to steel). They all seem to work. So far I have not encountered hardened steel plates but I'm sure they would work too. Just not any better. The important thing is for all the plates to be nice and flat.

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