Hard solder - Fontargen

Hard Solders

Unlike soft solders, hard solders are characterized by a higher melting temperature – usually above 450 °C. This allows them to create exceptionally strong and durable joints that retain their properties even under higher thermal and mechanical stress.

Hard solders are made from various metal alloys, most commonly based on copper, brass, nickel, or silver. Thanks to this, they offer a wide range of properties – from high strength to corrosion resistance.

✅ Advantages of hard solders:

• high strength and long service life of joints,
• resistance to heat, pressure, and mechanical stress,
• suitable for joining dissimilar metals that would otherwise be difficult to bond,
• wide industrial applications.

❌ Disadvantages of hard solders:

• higher cost compared to soft solders,
• requirement for higher temperatures and more powerful equipment,
• more complex soldering process.

Applications of hard solders:
Hard solders are indispensable in mechanical engineering, the automotive and aerospace industries, in the production of tools, steel structures, hydraulic and cooling systems. They are also used in repair work for joining metals that require strong and durable joints, such as in the repair of cast iron or stainless steel.

👉 If you are looking for a durable and resistant solution, hard solders are the right choice.