Can anyone explain the differences in these materials (Especially in a leadpipe). I've heard so many confusing mixed reactions towards them.
Thanks!

There is no metallic silver (Au) in "nickel-silver." This misleading name came about because of the shiny silvery color of this alloy of copper, nickel, and zinc.BrianJohnston wrote: ↑Sat Aug 01, 2020 4:16 pm I've been looking for a clear answer for the difference between these two materials and I haven't.
Harder and stronger than brass, too, if that's of any significance. Sterling silver is usually only used for bells and leadpipes. Nickel silver is used for inner slide tubes on almost all trombones and in contact areas (like cork barrels, braces, and tuning slide legs) on a lot of them; not as common (but far from uncommon) are nickel silver outer slides and nickel end crooks on handslides.