ThePipingMart Blog Fasteners Copper Washers vs Steel Washers – What’s the Difference

Copper Washers vs Steel Washers – What’s the Difference

Copper Washers vs Steel Washers

Washers are small but incredibly important components used in many mechanical applications. They are essential for bolting and screwing things together, and the right washer can make a huge difference in the lifespan and functionality of your equipment. Two of the most common types of washers are copper and steel washers. This blog post will compare copper and steel washers to help you determine the best choice for your specific application.

Difference Between Copper Washers and Steel Washers

Strength and Durability

Copper is a soft metal; copper washers are weaker than steel washers. Steel washers are much harder and more durable, making them better suited for heavy-duty applications. Steel washers are the clear winner if you need something that will withstand much force. However, copper washers are still strong enough for many applications and have the added benefit of being more corrosion-resistant than steel.


Copper is an excellent conductor of heat and electricity, making copper washers ideal for applications where conductivity is important. For example, they are commonly used in electrical equipment, heat exchangers, and hydraulic systems. On the other hand, steel washers are not good conductors of heat or electricity. If you need a washer that will help to dissipate heat or conduct electricity, then copper is the way to go.


Copper is generally more expensive than steel, especially for larger washers. This is a consideration if you are working on a tight budget or have a high volume of washers to purchase. Steel washers are typically more affordable and readily available, making them a good choice for those with cost in mind.

Resistance to Corrosion

One of the biggest advantages of copper washers is their corrosion resistance. Copper is naturally corrosion-resistant, making copper washers an excellent choice for outdoor applications or in environments where moisture is present. On the other hand, steel washers are more susceptible to rust and other forms of corrosion. If corrosion resistance is a major concern, you should consider copper washers.

Heat Resistance

Copper washers have a higher melting point than steel washers, making them more heat-resistant. This makes them a good choice for applications with high temperatures, such as automotive engines or industrial settings. Steel washers, on the other hand, may deform or melt under extreme heat conditions.


So, which one is better – copper washers or steel washers? As with most things, it depends on your specific application. Steel washers are your best bet if you need strength and durability. However, copper washers are the way to go if you need resistance to corrosion, good conductivity, or heat resistance. Ultimately, it all comes down to what you need your washer to do. Consider these factors carefully, and you can decide whether copper or steel washers are the right choices for your specific application.

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