"Should this part be nickel plated or chrome plated?" is probably the most common question we get from engineers who are new to metal finishing. The honest answer is often "both," and it's worth understanding why.
1. Appearance
Nickel is a warm silver-white. Chrome is cooler, bluer, and noticeably brighter. If you put the two next to each other, chrome reads as harder and more reflective, nickel as softer and more muted.
2. Hardness and wear
Chrome is significantly harder. Hard chrome, which is the thick industrial version, is used specifically as a wear surface on hydraulic rods and molds. Nickel is moderately hard: fine for most consumer hardware, not a wear coating.
3. Corrosion resistance
This is the one that surprises people. Nickel provides most of the corrosion protection, not chrome. Decorative chrome is applied very thin and it is microporous, so on its own it does not seal the substrate. That is why decorative chrome is almost always plated over a nickel undercoat.
4. Process and cost
Nickel is a simpler process and costs less. Decorative chrome adds steps, adds a bath, and adds cost. If your part doesn't need the brightness or the hardness, you're paying for something you won't use.
5. Where each one is used
Nickel: electronic components, fasteners, corrosion undercoats, parts where appearance matters but not brilliance. Chrome: bath fittings, automotive trim, appliance exteriors, wire baskets and racks, anything where the customer will look at the finish.
6. The combination most parts actually use
Nickel undercoat plus chrome topcoat. You get the corrosion protection from the nickel and the brightness and hardness from the chrome. This is our standard route for decorative work, and if a supplier quotes you bare decorative chrome with no nickel underneath, ask why.
| What you need | What to specify |
|---|---|
| Bright, mirror-like, wear-resistant exterior | Chrome over nickel |
| Corrosion protection, undercoat, cost-sensitive | Nickel |
| Food-contact wire baskets | Food-grade wire mesh plating |
FAQ
Does chrome always need a nickel undercoat?
For decorative chrome, effectively yes. Without it you sacrifice corrosion performance.
Which is cheaper?
Nickel, generally.
Can you do both?
Yes, including the nickel-plus-chrome combination. Request a quote.