Zinc-Nickel Alloys: A Safer Alternative to Cadmium Plating

Cedric Olivier

July 09, 2024

July 09, 2024

For decades, cadmium plating reigned supreme in protecting metals from corrosion. But this wonder coating came with a dark secret: it posed significant environmental and health hazards.

Cadmium, a heavy metal, can leach into the environment and accumulate in the body, leading to serious health problems. Thankfully, a safer and more sustainable alternative has emerged - zinc-nickel alloys.

The trouble with Cadmium plating

Cadmium is a metal that is highly hazardous to human health

Cadmium plating offers exceptional corrosion resistance, making it a popular choice for various industries. However, this benefit comes at a high cost. Cadmium is classified as a carcinogen and can cause severe respiratory problems upon exposure.

Additionally, cadmium-laden wastewater poses a significant threat to ecosystems. As a result, strict regulations like the Restriction of Hazardous Substances Directive (RoHS) have drastically limited the use of cadmium plating.

Zinc-Nickel alloys: A safer choice

Zinc-nickel alloys, typically composed of 80-90% zinc and 10-20% nickel, offer a compelling combination of safety and performance. Unlike cadmium, zinc and nickel are much less hazardous, making them a safer choice for both workers and the environment.

These alloys are not only less harmful to health, but also offer exceptional performance. They exhibit superior corrosion resistance compared to traditional zinc plating, rivaling the performance of cadmium.

Furthermore, zinc-nickel alloys offer enhanced wear protection, making them ideal for applications prone to friction and abrasion.

Zinc-Nickel Alloys advantages

The benefits of zinc-nickel alloys extend beyond corrosion protection. These alloys offer several advantages:

  • Improved Durability: Zinc-nickel alloys enhance the lifespan of plated components.

  • Excellent Resistance: They exhibit excellent resistance to harsh environments and chemicals, making them perfect for demanding applications.

  • Superior Lubricity: Some zinc-nickel alloy formulations possess superior lubricity, which reduces friction and wear in moving parts.

  • Electromagnetic Shielding: Certain zinc-nickel coatings provide electromagnetic shielding, a valuable property for electronic components.

In which industries is it used?

The versatility of zinc-nickel alloys makes them a valuable asset across various industries:

  • Automotive Industry: They safeguard car parts from corrosion and wear, ensuring a longer vehicle lifespan.

  • Aerospace Industry: Zinc-nickel alloys protect aircraft components, promoting safety and performance.

  • Electronics Industry: These alloys enhance the durability and reliability of electronic devices.

  • Construction Industry: They provide superior protection for galvanized steel structures.

  • Oil and Gas Industry: Zinc-nickel alloys shield pipelines and equipment from harsh environments.

A Sustainable future for metal plating

Zinc and nickel alloy galvanized metal components

Zinc-nickel alloys represent a significant step towards a more sustainable future for metal finishing. Their reduced environmental impact compared to cadmium plating makes them an eco-friendly choice.

Additionally, zinc-nickel alloys minimize hazardous waste generation, promoting a cleaner manufacturing process. As regulations continue to tighten and environmental consciousness grows, zinc-nickel alloys are poised to become the standard for metal plating.

Continuous innovation for a brighter future

The field of zinc-nickel alloy technology is constantly evolving. Researchers are developing new formulations that push the boundaries of performance and broaden the range of applications. With ongoing advancements, zinc-nickel alloys are set to play an even more significant role in creating a safer and more sustainable future for metal plating.

At the forefront of this technological evolution, PAVCO offers cutting-edge zinc-nickel alloy solutions designed to meet the highest standards of performance and sustainability.

Discover how our innovative solutions can benefit your metal plating needs. Contact us today to explore the future of sustainable metal plating with our advanced zinc-nickel solutions.



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