Plating & metallizing · finish comparison
Silver Plating vs Tin Plating
Silver Plating and Tin Plating are both electroplating & electroless plating finishes; silver plate resists corrosion better.
Silver Plating
Electroplating & electroless plating · $$$$ · instant quote
Silver plating provides the highest electrical and thermal conductivity of common plated metals.
Tin Plating
Electroplating & electroless plating · $$ · instant quote
Tin plating is a soft, solderable electrodeposit for copper-alloy and steel electrical parts.
When to choose which
Choose Silver plate
Choose Silver plate when high-current conductivity is more important.
- Excellent electrical and thermal conductivity
- Typical 5–20 µm engineering thickness
- Good solderability and high-current contact performance
Choose Tin plate
Choose Tin plate when solderability at lower cost governs.
- Good solderability at 3–15 µm typical thickness
- Low contact resistance for separable low-force contacts
- RoHS-compatible pure tin options
What the numbers say
- Silver plate resists corrosion better.
- Silver plate is the harder surface (60–200 HV vs 5–20 HV).
- Tin plate is the lower-cost option ($$).
Scores side by side
Each score is 0–100 against every finish in this catalog. Corrosion is derived from salt-spray test duration and surface hardness from the finish layer's Vickers hardness where a measured figure exists; a finish that leaves the base metal's own surface is not rated for hardness. Cosmetic, lubricity and cost are FabDigit's engineering assessment. Scores and typical figures are screening data, not matched side-by-side tests or service-life rankings; ASTM B117 is a controlled salt-fog method, not a field-life prediction.
| Score | Silver plate | Tin plate |
|---|---|---|
| Corrosion resistance | 55 Good | 34 Low |
| Surface hardness / wear | 39 Fair | 0 Minimal |
| Cosmetic quality | 72 Very good | 45 Fair |
| Lubricity | 42 Fair | 38 Fair |
| Cost | 82 $$$$ | 20 $$ |
Key numbers
| Property | Silver plate | Tin plate |
|---|---|---|
| Thickness | 5–20 µm | 3–15 µm |
| Surface hardness | 60–200 HV | 5–20 HV |
| Salt-spray test duration | — | 24–48 h |
| Max service temperature | — | 150 °C |
| Electrical | Conductive | Conductive |
| Colours | silver | silver |
| Relative cost | High ($$$$) | Standard ($$) |
| Added lead time | 4–8 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 | Silver plate | Tin plate |
|---|---|---|
| Brass | Yes | Yes |
| Copper Alloy | Yes | Yes |
| Nickel Alloy | Yes | — |
| Aluminum | With care | Limited |
| DMLS / SLM | With care | Limited |
| Stainless Steel | With care | Limited |
| Steel | With care | With care |
| Zinc Alloy | With care | With care |
| Magnesium Alloy | Limited | No |
| Polymer | Limited | No |
| SLA | Limited | No |
| Titanium | Limited | No |
Specifications and drawing call-outs
Silver plate
- ASTM B700 — Standard Specification for Electrodeposited Coatings of Silver for Engineering Use
SILVER PLATE PER ASTM B700, TYPE I, GRADE A, 0.0005 IN MIN ON CONTACT SURFACES; NICKEL UNDERPLATE 0.0002 IN MIN; NO ANTITARNISH
Tin plate
- ASTM B545 — Standard Specification for Electrodeposited Coatings of Tin
MATTE TIN PLATE PER ASTM B545, SERVICE CLASS C, 8 µm MIN OVER 2.5 µm MIN NICKEL UNDERPLATE; PURE TIN, NO BRIGHTENERS
Silver plate vs Tin plate — frequently asked
What is the difference between Silver plate and Tin plate?
Silver Plating and Tin Plating are both electroplating & electroless plating finishes; silver plate resists corrosion better. Silver plate is the harder surface (60–200 HV vs 5–20 HV). Tin plate is the lower-cost option ($$).
When should I use Silver plate instead of Tin plate?
Choose Silver plate when high-current conductivity is more important. Conversely: choose Tin plate when solderability at lower cost governs.
Is Silver plate or Tin plate cheaper?
Tin plate is the lower-cost finish ($$ against $$$$ for Silver 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.