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solder replacement adhesives
Johnson Matthey Tenacity™ No. 5A Flux Powder
Categories: Metal; Nonferrous Metal; Solder/Braze Alloy

Material Notes: Tenacity™ No.5A Flux Powder is a brazing flux suitable for use with silver brazing filler metals. It has a working range of 600-900°C.

Tenacity™ No.5A is a modified version of Tenacity™ No. 5, with an addition of elemental boron. This improves the fluxing action on tungsten carbide and the refractory metals.

Tenacity™ No.5A shows good overheat resistance when compared to other silver brazing fluxes. This characteristic is potentially useful when brazing stainless steel components for example, where because of its poor thermal conductivity there is a risk of overheating causing the flux to become exhausted and ineffective. However, Tenacity™ No.5A should not be used on low nickel or nickel-free stainless steels if interfacial corrosion is likely to be a hazard in service.

Tenacity™ No.5A also shows an extended life at brazing temperature (time / temperature stability). This feature is important when brazing large assemblies in steel or copper for example, or wherever prolonged heating is necessary.

Information provided by Johnson Matthey Metal Joining

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Solder ReplacementRoHS Compliant Adhesives for Solder Replacement
Master Bond offers RoHS compliant, electrically conductive systems to replace lead soldering. These epoxy and silicone adhesives offer low volume resistivity, low outgassing and high temperature resistance.
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