Home /
Search 🔍
the Site
pub Where the world gathers for
plating, anodizing, & finishing Q&As since 1989


Application requirement of Nickel vs Nickel-Chromium plating

May 10, 2010

Dear Sir,
We are developing hydraulic pistons which require properties of corrosion and wear resistance. We decided to plate with either Ni plating or Ni-Cr plating. Ni-Cr plating is costlier. Is it good to go with Ni plating? Which characteristics influence of selecting above mentioned platings?

Siva Kumar
Product designer - Chennai, Tamilnadu, India

May 10, 2010

Hi, Siva. Electrolytic nickel plating will not be satisfactory. You must do the nickel-chrome plating because the chrome adds corrosion resistance (symbiotically in concert with the nickel plating) and a low coefficient of friction. But decorative nickel-chrome plating is not generally used for this application because of the thinness of the chrome. Usually a heavy chrome plating, hard chrome, would be used for wear resistance and oil retention.


Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey

May 12, 2010

Dear Siva,
better you try with Zinc Flake coatings.

Kannan Boopathi
- Salem, Tamil Nadu, India

May 13, 2010

Zinc flake doesn't have any wear properties, great corrosion resistance but I would think the hydraulic seal would scrape it right off.

Trent Kaufman
Trent Kaufman
electroplater - Galva, Illinois

June 5, 2010

Dear Siva, you should opt for electroless nickel plating

Harish Gurnani
- India

October 1, 2010

Dear Siva,
You have not mention where these pistons rods are used. For Earth moving Hydraulic Cylinders Piston rods 25-40 microns of Hard Chrome plating is generally applied as they withstand varied climatic conditions. However in Marine conditions I would prefer 20 microns of duplex Nickel and 10 microns of Chrome

Mahendra Gargatti
electroplaters - Belgaum, Karnataka, India

finishing.com is made possible by ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

Chemicals &
Consult'g, Train'g
& Software

About/Contact    -    Privacy Policy    -    ©1995-2023 finishing.com, Pine Beach, New Jersey, USA