Meta-Braze™ 449
Meta-Braze™449 is very widely used for brazing of tungsten carbide and PCD segments in applications such as cutting tools, wear parts and drill bits. It contains both nickel and manganese which have been shown to improve wetting of the brazing alloy especially on the more difficult to braze grades of tungsten carbide.
Meta-Braze™449 is particularly suitable for small-medium sized carbide segments (<20mm). In these applications it provides a slightly thicker joint than more free-flowing alloys such as Meta-Braze™155. This factor can help with absorbing stresses arising from the different expansion and contraction rates of the parent materials during the brazing process.