Plating & metallizing · finish comparison
Copper Plating vs Electrolytic Nickel Plating
Copper Plating and Electrolytic Nickel Plating are both electroplating & electroless plating finishes; nickel plate resists corrosion better.
Copper Plating
Electroplating & electroless plating · $$ · instant quote
Copper plating is a conductive, ductile undercoat used for leveling, adhesion, shielding, and build-up.
Electrolytic Nickel Plating
Electroplating & electroless plating · $$ · instant quote
Electrolytic nickel provides a bright decorative surface, corrosion barrier, wear layer, or undercoat for chromium and precious metals.
When to choose which
Choose Copper plate
Copper plate is the pick when its strengths below matter more than Nickel plate's.
- High electrical conductivity
- Ductile 5–30 µm underlayer
- Levels polishing marks under nickel-chrome
Choose Nickel plate
Choose Nickel plate when a harder diffusion barrier is required.
- Bright decorative silver finish
- Typical 5–25 µm engineering buildup
- Useful diffusion barrier and underplate
What the numbers say
- Nickel plate resists corrosion better.
- Nickel plate is the harder surface (150–600 HV vs 50–250 HV).
- Copper plate is the lower-cost option ($$).
Scores side by side
Each score is 0–100 against every finish in this catalog. Corrosion is derived from salt-spray test duration and surface hardness from the finish layer's Vickers hardness where a measured figure exists; a finish that leaves the base metal's own surface is not rated for hardness. Cosmetic, lubricity and cost are FabDigit's engineering assessment. Scores and typical figures are screening data, not matched side-by-side tests or service-life rankings; ASTM B117 is a controlled salt-fog method, not a field-life prediction.
| Score | Copper plate | Nickel plate |
|---|---|---|
| Corrosion resistance | 32 Low | 51 Fair |
| Surface hardness / wear | 39 Fair | 55 Good |
| Cosmetic quality | 65 Good | 78 Very good |
| Lubricity | 22 Low | 25 Low |
| Cost | 22 $$ | 35 $$ |
Key numbers
| Property | Copper plate | Nickel plate |
|---|---|---|
| Thickness | 5–30 µm | 5–25 µm |
| Surface hardness | 50–250 HV | 150–600 HV |
| Salt-spray test duration | — | 48–200 h |
| Electrical | Conductive | Conductive |
| Colours | copper, rose | silver |
| Relative cost | Standard ($$) | Standard ($$) |
| Added lead time | 3–6 working days | 3–6 working days |
| RoHS | Compliant | Compliant |
| Instant quote | Yes | Yes |
Bold marks the side that is ahead on a row where more (or less, for cost and lead time) is better. Ranges are the typical specification window; the drawing call-out fixes the class.
Which materials take each finish
| Material family | Copper plate | Nickel plate |
|---|---|---|
| Brass | Yes | Yes |
| Copper Alloy | Yes | Yes |
| Steel | Yes | Yes |
| Aluminum | With care | With care |
| DMLS / SLM | With care | With care |
| Stainless Steel | With care | With care |
| Zinc Alloy | With care | With care |
| Magnesium Alloy | Limited | Limited |
| Polymer | Limited | Limited |
| SLA | Limited | Limited |
| Titanium | Limited | Limited |
Specifications and drawing call-outs
Copper plate
- ASTM B734 — Standard Specification for Electrodeposited Copper for Engineering Uses
COPPER PLATE PER ASTM B734, 25 µm MIN, DUCTILE ENGINEERING DEPOSIT; PLATE SIGNIFICANT SURFACES SHOWN; MASK M6 THREADS
Nickel plate
- ASTM B689 — Standard Specification for Electroplated Engineering Nickel Coatings
- SAE AMS 2403 — Plating, Nickel, General Purpose
ELECTROLYTIC NICKEL PLATE PER ASTM B689, 0.0005 IN MIN, BRIGHT FINISH; MASK THREADS AND SEALING FACES
Copper plate vs Nickel plate — frequently asked
What is the difference between Copper plate and Nickel plate?
Copper Plating and Electrolytic Nickel Plating are both electroplating & electroless plating finishes; nickel plate resists corrosion better. Nickel plate is the harder surface (150–600 HV vs 50–250 HV). Copper plate is the lower-cost option ($$).
When should I use Copper plate instead of Nickel plate?
Conversely: choose Nickel plate when a harder diffusion barrier is required.
Is Copper plate or Nickel plate cheaper?
Copper plate is the lower-cost finish ($$ against $$ for Nickel plate) among the finishes FabDigit quotes. Both are priced per part with a lot minimum; the exact figure appears on the instant quote once the part is uploaded.