Hard Solder

Hard solders - essential in professional plumbing

Brazing solders are a key element in every plumber's arsenal. They are indispensable when connecting copper pipes. They provide durable and tight connections. At Onninen we offer a wide selection of brazing solders. Our products meet the highest quality standards. They guarantee reliability in all working conditions.

We often come across questions about selecting the right solder. The key is to match the type of materials being joined. The melting temperature of the solder is also important. It must be higher than the operating temperature of the installation. Only then will the connection be durable and safe.

Types of hard solders offered by Onninen

Our assortment includes various types of hard solders:

• Silver solders - ideal for joining copper and its alloys
• Brass solders - great for steel and cast iron
• Copper-phosphorus solders - perfect for copper and brass

We offer products from renowned brands, including our own brands. Onnline, FXA and Opal are a guarantee of the highest quality. They provide an optimal price-performance ratio. Our experience allows us to recommend them with full conviction.

Many customers ask about the differences between hard and soft solders. Hard solders melt at temperatures above 450°C. They provide much stronger connections than soft solders. They are resistant to high pressures and temperatures. This makes them ideal for heating and gas installations.

How to choose the right hard solder?

Choosing the right braze alloy depends on several factors:

• Type of materials being joined
• Required connection strength
• Installation operating conditions
• Soldering method (gas burner, induction)

Our experience shows that the soldering technique is also crucial. Even the best solder will not guarantee a permanent connection without proper processing. That is why we offer not only products, but also professional advice. Our experts will be happy to help you choose the optimal solution.

In everyday practice, we see how important the quality of hard solders is. Recently, we used silver solders in a project for a large office complex. They provided reliable connections in an extensive air conditioning installation. The investor appreciated the durability and safety of the work performed.

Brazing pastes - an essential accessory

A complete range of hard solders requires appropriate soldering pastes. They serve to clean and protect the surface during soldering. They prevent oxidation and facilitate the flow of the solder. At Onninen we offer pastes for various applications:

• Universal pastes for copper and its alloys
• Specialized pastes for stainless steel
• High Temperature Soldering Pastes

Our own brand Onnline offers high-quality soldering pastes. They are compatible with most hard solders available on the market. They provide optimal results with minimal effort. This is especially appreciated by professional installers.

In the case of office reorganization, we most often encounter the need to modify the installation. This is where our hard solders and pastes come in handy. They allow for quick and lasting changes. They minimize downtime and inconvenience for employees.

Onninen recommends using complete brazing kits. They contain selected solder, paste and necessary accessories. This solution guarantees compatibility and the best work results. It saves time and ensures that the connections are made correctly.

Brazing solders are the foundation of reliable plumbing and heating installations. Their proper selection and application determine safety and durability. At Onninen, we provide not only the highest quality products. We also offer expert advice and technical support. We invite you to contact our specialists. They will help you choose the optimal solutions for each project.