Wire in an electroplating bath

Electroplated copper wires

Surface finishes

Tin, silver, nickel and gold change the properties of the wire surface. Selection depends on factors including solderability, electrical contacting, corrosion and temperature.

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Coatings compared
CoatingPropertiesCoating massCoating thickness / reference diameter
Tin (Sn)Good solderability and corrosion protection.5.4–42 g/kg3–24 µm at Ø 1.8 mm
Nickel (Ni)High corrosion and temperature resistance (up to 750 °C); diffusion barrier.40–270 g/kg18.6–153 µm at Ø 1.8 mm
Silver (Ag)Temperature resistance up to 200 °C and good surface conductivity for high-frequency applications (skin effect).3–150 g/kg1.15–65 µm at Ø 1.8 mm
Gold (Au)Corrosion resistance, high weldability and chemical resistance.1–30 g/kg0.07–2.14 µm at Ø 0.06 mm

Scroll table horizontally

Coating thicknesses refer to the wire diameters stated. Temperature figures describe the respective coating option; the suitability of the complete conductor must be agreed for the specific application.

Tailored to your needs

The right solution for your project.

We tailor the material, dimensions and surface finish to your application. Talk to us about further variants and custom solutions.

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Let’s talk about your project.

Interested in Surface finishes? Tell us about your application, the dimensions you need or your technical requirements.

+49 9141 918-0

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