The 5 Best Heat-Resistant Plating Metals

molten material being poured in a manufacturing warehouse

The 5 Best Heat-Resistant Plating Metals

Extreme temperatures pose a constant challenge to manufacturers in many industries. Making parts that can withstand high-temperature environments takes specialized solutions like customized electroplating. Not only does electroplating provide heat resistance, it can also enhance the performance and durability of components that will be subjected to high temperatures. But if you want to create heat-resistant parts, you need to select the right plating metal for the job. Here’s how to choose the right type of electroplating for your components. 

The Five Most Heat-Resistant Plating Metals

1: Nickel

Renowned for its corrosion resistance and hardness, nickel is also resistant to heat. Nickel has one of the highest melting points among all the plating metals (1455°C/2651°F), making it extremely useful for high-temperature applications. Nickel coatings are commonly used in the manufacture of automotive, aerospace, and communications components. 

2: Copper

Another one of the most heat-resistant metals, copper, has a melting point of 1082°C/1981°F. It also has high electrical conductivity as well as strong corrosion resistance, and is highly malleable. These properties make copper plating ideal for electronic, heating, and industrial applications. 

3: Gold

Gold is widely celebrated for its visual appeal, but it also offers impressive heat resistance—its melting point is 1064°C/1947°F. Gold plating is typically used in the electronics industry due to its high electrical conductivity and its ability to withstand high temperatures. Gold is also used in the aerospace and medical industries for its resistance to corrosion, wear, and heat. Although we don’t offer Gold plating at CRC Surface Technologies, it earns a place on this list for its high heat resistance. 

4: Silver

With a melting point of 961°C/1763°F, silver’s exceptional electrical conductivity is complemented by its ability to withstand high temperatures. Heat-resistant silver coatings help contribute to the overall reliability and performance of electronic components. For instance, silver plating on connectors, contacts, and other components ensures efficient heat dissipation in electronic applications. 

5: Zinc

Primarily known for its corrosion resistance, zinc is another significant heat-resistant metal. It has a melting point of about 419°C/787°F. Zinc-nickel alloys in particular are valued for their ability to protect against both corrosion and high temperatures. This makes zinc-nickel coatings suitable for automotive and aerospace applications where the components will face a combination of heat and harsh environmental conditions. While we don’t offer Zinc plating, it’s worth noting the metal’s impressive heat-resistant properties. 

Common High-Temperature Applications

The need for these highly heat-resistant coatings extends across a wide range of industries. However, some coatings are better suited to certain applications than others. 

  • Aerospace

Aerospace industry components are frequently subjected to extreme temperatures and pressures during flights and space missions. Electroplating helps improve the structural integrity and longevity of these parts by enhancing their corrosion resistance, electrical conductivity, and heat resistance. Nickel-based alloys, copper-nickel alloys, and zinc-nickel alloys are extensively used in the aerospace industry. 

  • Automotive

The automotive industry relies heavily on heat-resistant and corrosion-resistant plating metals. These properties are necessary to enhance the durability and performance of many components. Zinc-nickel alloys are commonly used to enhance engine parts as well as braking and power steering systems. 

  • Defense

Reliability is non-negotiable in defense applications, where heat-resistant plating plays an important role. Nickel-based alloys are utilized in the manufacture of defense equipment and military vehicles to ensure structural integrity and resistance to corrosion under extreme temperatures. 

  • Electronics

Heat-resistant coatings are also essential in the electronics industry, as high temperatures can destroy electrical parts. Silver, copper, and gold plating are often used to improve the reliability and performance of electronic components.

Metal Plating Services in Phoenix, Arizona

No matter the application, improving the longevity of metal parts with heat-resistant coatings takes a skilled hand. At CRC Surface Technologies, our diverse and professional team is highly experienced in applying an extensive list of surface treatments, including nickel, copper, and silver plating. Send a message to to request a quote, or call us at 602-253-4175 to learn more.


Images used under creative commons license – commercial use (1/3/2024). Photo by Morteza Mohammadi on Unsplash