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  1. #1
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    Idea! nickel-plated & chrome-plated cassettes

    Is there any difference between nickel-plated & chrome-plated cassettes?

    Which do you prefer?

  2. #2
    Nouveau Retrogrouch SuperModerator
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    nickel-plated & chrome-plated cassettes

    Quote Originally Posted by Cannondale M200se View Post
    Is there any difference between nickel-plated & chrome-plated cassettes?

    Which do you prefer?
    Most chrome plated items are nickel plated first.
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  3. #3
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    Quote Originally Posted by Cannondale M200se View Post
    Is there any difference between nickel-plated & chrome-plated cassettes?

    Which do you prefer?
    Chrome forms chromium oxide on the surface and this prevents the base material from corroding, this is why stainless steel is stainless. chrome is about 68 or so on the hrc scale. (iirc its 68, could be off by a few points too...)

    Nickel just form a barrier over the steel, i don't think is has any real corrosion inhibiting action except you have another material over the steel, similar to paint. I'm guessing 45-50hrc.

    Most decorative chrome finishes is actually 3 layers of different copper (different chemical baths) and then nickel. Nickel gives the color, and then an ultra thin layer of chrome to protect the nickel finish.

    Most high performance chrome is "hard chromed" this is atotally different process and uses only chrome, and its much much thicker and much more durable than decorative finishes, andits resists corrosion and scratches better. You want a hard substrate for this to prevent it from flaking due to the substrate bending/getting dinged. It all depends on the platings thickness though, the thinner it is the better it follows the substrate when it gets dinged up. I'm guessing most cassettes use a thin layer of only chrome since i have never seen any copper color on worn cassettes.
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