Solder

At Onninen we provide a wide range of products in the field of installation chemicals. We have many articles intended for soldering in our offer. In the solders category you will find proven, high-quality solders in the most commonly used forms. We offer soft and hard solders, mainly lead-free. Our online shop is available to both professionals who solder, among others, copper pipes on a daily basis, as well as amateurs involved in soldering electronic components. Check out the products available in our offer and order the solder you need online - conveniently and at a great price.

Soldering alloys – applications and types

Solder is a metal alloy used in the soldering process. It acts as an adhesive. It allows you to create a durable, strong and flexible connection of metal elements without interfering with their condition. Solder in its traditional form is a mixture of tin and lead. In turn, lead-free solder consists mainly of tin (97%) and copper. Lead solder is still very popular due to its lower melting point, softness and efficiency. However, lead-free solder is considered to be much safer for the user, but also more difficult to use and less efficient. The product is heated by a soldering iron. In its liquid state, it precisely adapts to the element, filling the space. There are different methods of soldering. Due to the range of melting temperatures and the filler used, soft soldering and hard soldering can be distinguished.

Soft soldering

In soft soldering, the temperature needed to effectively join materials does not exceed 400-450oC (which is relatively low). The filler metal can be in the form of wire or sticks. It is a mixture of tin and copper or tin and lead. Soft soldering is used primarily when connecting electronic components and parts of sanitary and heating installations, provided that the working temperature does not exceed 110oC.

Brazing

In hard soldering, the melting temperature of the filler metal exceeds 450o C. Hard solders are characterized by maximum resistance to mechanical damage, stretching and extreme temperatures. Hard filler metals used in this soldering method are silver, phosphorus and copper solders. In the hard soldering process, steel, copper, precious metal, brass and bronze elements are joined. Hard soldering is used primarily in heating, oil, refrigeration and air conditioning installations and wherever the working temperature is very high (exceeds 110o C).

Solders available at the Onninen electrical wholesaler

At the Onninen electrical installation wholesaler we have a wide range of soldering binders, so you will certainly find the product you need - regardless of the nature of the connections you make. Our assortment includes, among others, soldering wires with flux, hard solder pastes or anaerobic resins from brands such as Brazetec, Geb or Onnline, which is our own brand. The quality of the products offered translates into the durability and reliability of the connections created and the comfort and safety of the operator's work.
Not sure which solder to choose? Contact the Onninen technical team. Our employees will select the optimal solutions for the planned implementation and personal preferences.