Sil-fos™ braze alloys are recommended for flux-free soldering of copper to copper. If you are going to solder copper alloys, such as brass, bronze, nickel silver and aluminum bronze a compatible flux must be used. Sil-fos™ has the best ductility of the phosphorus-containing silver-copper solders. Sil-fos™ 6 has the best flow properties, but shows a lower ductility. Sil-fos™ 5 offers the best combination
between good flow properties and high ductility.
Copper-flo™ brazing alloys are recommended for the flux-free brazing of copper. They have a lower ductility than the silver-containing phosphorus solders.
Nickel-based solders offer good corrosion resistance and are characterised by high temperature resistance. These solders are therefore commonly used in aerospace and the nuclear and automobile industries. Nickel based solders have a great number of different alloy compositions that exhibit different melting ranges, solder flow, solder and bonding properties. They are mainly used for furnace soldering in a vacuum or under a protective gas.
Johnson Matthey supplies a range of gold-containing carbide and high temperature solders. The products are made with the least possible impurities in order to meet the requirements of the aerospace and electronics industries.
Orobraze™ alloys are very resistant to oxidation and corrosion. In addition, high strengths at inceased operating temperatures are achieved.
The palladium-containing solders from Johnson Matthey are produced with the least possible impurities, such that they meet the requirements for use in a vacuum. Due to their extremely high corrosion resistance they are also used in the chemical industry.
Miscellaneous Precious Metal Brazing Filler Metals
In addition to the standard alloys Pallabraze™ and Orobraze™ Johnson Matthey is now able to supply most gold and palladium-containing alloys that are available on the market. In this section you can find a selection.