Beryllium Copper lining baffled me. Way softer metal than Tungsten. I guess its about the density? Beryllium Copper is one of the highest temp coppers but th

Beryllium Copper lining baffled me. Way softer metal than Tungsten. I guess its about the density? Beryllium Copper is one of the highest temp coppers but that ain't saying much for something that generates millions of degrees of plasma.... Beryllium Copper is tough and used for non-sparking tools. I don't see it handling millions of degrees. Tungsten seems like a good switch... Imagine machining it though...