What filler metal is used for brazing dissimilar metals?

Brazing dissimilar metals often requires specialized filler metals that can create strong bonds while accommodating the differing thermal expansion characteristics of the materials being joined. The BAg-series filler metals, which contain silver, are specifically formulated for brazing applications involving various metals, including copper and brass, as well as base metals that may differ in their composition.

This series of filler metals is ideal for situations where a high-strength joint is essential. The addition of flux helps clean the surfaces being joined and prevents oxidation during the heating process, allowing for better penetration and flow of the filler metal into the joint. The properties of BAg-series materials, such as their melting temperature and ability to wet the surfaces of dissimilar metals, make them particularly effective for this application.

Other fillers like Cu-Zn alloys or silver solder may have their specific uses in certain contexts but could encounter challenges when bonding metals with significantly different thermal characteristics, making the BAg-series the superior choice for joining dissimilar metals.