1. Attention: We have put together a thread with tips and a tutorial video to help with using the new software. Please take a moment to check out the thread here: Trapshooters.com Tutorial & Help Video.
    Dismiss Notice

O/T Chrome or nickle?

Discussion in 'Uncategorized Threads' started by almost unemployed, Sep 17, 2007.

Thread Status:
Not open for further replies.
  1. almost unemployed

    almost unemployed TS Member

    Nov 1, 2006
    Just by appearance alone, how can you tell if something is plated in chrome or nickle? This would be an aftermarket job, so serial number correlation has no bearing. It is maybe 20-25 years old. Is there a test of some kind to be sure?
  2. ec90t

    ec90t Guest

    If you hold a plain white piece of paper up to the surface and the reflection is yellowish in color then it's nickle. If the reflection is white, then it's chrome.

  3. BL350

    BL350 TS Member

    Jan 29, 1998
    Dear Almost Unemployed,
    There are procedures in "The Platers Handbook" titled Nathaniel Hall's Methods of Identification of Deposits.
    A drop of conc. nitric acid placed on an oil free deposit will turn yellow within 5 seconds. (For electrolytic nickel) If it turns black very slowly, it is Electroless nickel. Conc. nitric has no effect on chromium plating. A drop of conc. hydrochoric )HCl) will attack chromium within 5 seconds. That's the best I can remember. BE SURE and do this in an area of the receiver that is not seen! (Under the wood).
    The color on white paper can be misleading as there are excellent electroless nickel coatings (low phos.) that are very white in color.
    Coatings class is now closed!..........Jet Boat Bill
  4. smokerz

    smokerz TS Member

    Sep 12, 2007
    At 25 years old, nickel will have tarnished to a smoky slightly yellow/brown. If it's still mirror bright and white, it's chrome.
Thread Status:
Not open for further replies.