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The Many Uses of Silicon Bronze

Silicon Bronze

Silicon bronze is a copper alloy composed of approximately 96% copper, 2.5% silicon, and 1.5% zinc or tin. It is widely used in marine, architecture, and electrical engineering industries due to its low thermal expansion rate and resistance to corrosion. If you’re wondering how it can be used in metalworking applications, read on for a comprehensive guide to silicon bronze uses.

Welding and Brazing

Silicon bronze is commonly used in welding and brazing due to its high strength and excellent ductility when heated. It has a melting point of 1450°F, making it one of the most heat-resistant metals available. The combination of these properties makes it an ideal choice for welding and brazing applications that require solid and durable joints that won’t crack or break under pressure.


Silicon bronze fasteners are also known for their incredible strength and durability, making them perfect for use in both indoor and outdoor applications where corrosion may be an issue. They are also non-magnetic, which makes them suitable for use in areas where electromagnetic interference may be present such as near sensitive electronics or medical equipment. They are often used in applications such as boatbuilding, electronics manufacturing, industrial construction, automotive repair, plumbing fixtures, etc.

Marine Applications

Silicon bronze is known for its excellent resistance to saltwater corrosion, making it the perfect material for use in boat hulls or other marine applications where contact with saltwater cannot be avoided. Additionally, its low thermal expansion rate means it can withstand the extreme temperatures found at sea level without becoming distorted like some other metals might. This makes it particularly useful for shipbuilding, where large welds need to remain stable over long periods.


Silicon bronze is a versatile metal alloy with many practical uses across numerous industries, from marine engineering to electrical engineering and beyond. Its combination of strength and resistance to corrosion make it the perfect material choice for applications ranging from fasteners to welding jobs where superior performance is required under harsh conditions. No matter what your project needs, silicon bronze should always be considered when selecting materials for your next metalworking project!

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