Solder is a metal or metal alloy which is used to join together homogeneous or non-homogeneous materials. Making a joint consists in filling up the gap with molten solder.

The solders come in the form of rods (which, in case of larger diameters, usually have a triangular cross section), strips and wire, which can be combined with flux to form the so-called flux coated solder.

The solders divide into hard and soft ones, which diff er in their melting point.

The offered product range includes brass, copper and copper-phosphorous solders, as well as silver solders (coated and uncoated).

The brass solders come in either pure form or with additives, such as tin or silicon. Tin increases the fluidity of the solder and reduces its melting point, while the silicon reduces the porosity of soldered joint. They can be used to join together steel, including the carbon steel, cast iron and copper, as well as its alloys.

The copper-phosphorus solders are characterized by high electrical conductivity, low soldering temperature and their ability to solder copper without fl ux. They are used mainly for joining copper and its alloys, while the copper solders are used to join together copper workpieces.

The silver solders are characterized by varied melting point. Due to their numerous properties, they are widely used in industry. They have very good mechanical properties, high electrical conductivity and good joint-gap filling capacity. Additionally, the silver solders are resistant to acids and bases. They are used to join together silver alloys, copper and its alloys, as well as all types of steel.

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